Yamaha VZ300 Manual
Yamaha
Påhængsmotor
VZ300
Læs nedenfor 📖 manual på dansk for Yamaha VZ300 (90 sider) i kategorien Påhængsmotor. Denne guide var nyttig for 9 personer og blev bedømt med 4.5 stjerner i gennemsnit af 2 brugere
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VZ200
VZ225
VZ250
VZ300
OWNER’S MANUAL
6C9-28199-14
U.S.A.Edition
LIT-18626-07-03
EMU25071
ZMU01690
Read this owner s manual carefully before operating your outboard motor.’
Important manual information
EMU31280
To the owner
Thank you for choosing a Yamaha outboard
motor. This Owner’s Manual contains infor-
mation needed for proper operation, mainte-
nance and care. A thorough understanding
of these simple instructions will help you ob-
tain maximum enjoyment from your new
Yamaha. If you have any question about the
operation or maintenance of your outboard
motor, please consult a Yamaha dealer.
In this Owner’s Manual particularly important
information is distinguished in the following
ways.
The Safety Alert Symbol means
ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED!
WARNING
EWM00780
Failure to follow WARNING instructions
could result in severe injury or death to
the machine operator, a bystander, or a
person inspecting or repairing the out-
board motor.
CAUTION:
ECM00700
A CAUTION indicates special precautions
that must be taken to avoid damage to the
outboard motor.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current prod-
uct information available at the time of print-
ing, there may be minor discrepancies
between your machine and this manual. If
there is any question concerning this manu-
al, please consult your Yamaha dealer.
NOTE:
The VZ200TR, VZ225TR, VZ250TR,
VZ300TR and the standard accessories are
used as a base for the explanations and illus-
trations in this manual. Therefore some
items may not apply to every model.
EMU25110
VZ200, VZ225, VZ250, VZ300
OWNER’S MANUAL
©2006 by Yamaha Motor Corporation, USA
1st edition, March 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in Japan
P/N LIT-18626-07-03
Table of contents
General information .......................... 1
Identification numbers record.......... 1
Outboard motor serial number .......... 1
Key number....................................... 1
Emission control information ........... 1
North American models..................... 1
Star labels......................................... 2
Safety information ........................... 3
Important labels............................... 4
Warning labels .................................. 4
Caution labels ................................... 5
Basic boating rules (Rules of the
road) ..............................................5
Steering and sailing rules and
sound signals.................................. 5
Rules when encountering vessels .... 6
Other special situations..................... 7
Fueling instructions ......................... 9
Gasoline.......................................... 10
Engine oil ........................................ 10
Battery requirement....................... 10
Battery specifications ...................... 11
Propeller selection......................... 11
Start-in-gear protection ................. 11
Basic components .......................... 12
Main components.......................... 12
Remote control................................ 13
Remote control lever....................... 14
Neutral interlock trigger ................... 14
Neutral throttle lever........................ 14
Throttle friction adjuster................... 14
Engine stop lanyard switch ............. 15
Main switch ..................................... 15
Power trim and tilt switch on
remote control or tiller handle ....... 16
Power trim and tilt switch on
bottom engine cowling .................. 16
Trim tab with anode ........................ 16
Tilt support lever for power trim and
tilt or hydro tilt model..................... 17
Top cowling lock levers ................... 17
Flushing device ............................... 18
Water separator .............................. 18
Tachometer..................................... 18
Digital tachometer........................... 19
Oil level indicators (three
indicators) .....................................19
Oil level indicator (digital type) ........ 19
Overheat warning indicator (digital
type)..............................................20
Speedometer (digital type) .............. 20
Trim meter....................................... 21
Trim meter (digital type) .................. 21
Hour meter (digital type).................. 21
Trip meter........................................22
Clock ...............................................22
Fuel gauge ...................................... 22
Fuel warning indicator ..................... 23
Low battery voltage warning
indicator ........................................23
Command link multifunction
meters ...........................................23
Tachometer unit ..............................23
Speed & fuel meter unit................... 27
Speedometer unit............................28
Fuel management meter ................. 29
Warning system ............................ 29
Overheat warning............................ 29
Oil level warning and oil filter
clogging warning ........................... 30
Operation ......................................... 32
Installation..................................... 32
Mounting the outboard motor .......... 32
Breaking in engine ........................ 33
Procedure for HPDI models ............ 33
Preoperation checks ..................... 34
Fuel .................................................34
Oil.................................................... 34
Controls...........................................34
Engine ............................................. 34
Operation after a long period of
storage ..........................................34
Filling fuel and engine oil .............. 36
Ring Free Fuel Additive................... 36
Filling oil for oil injection models...... 36
Oil level indicator operation............. 38
Operating engine .......................... 39
Feeding fuel ....................................39
Starting engine.............................. 39
Electric start and remote control
Table of contents
models .......................................... 39
Warming up engine ....................... 40
Electric start and prime start
models .......................................... 40
Shifting .......................................... 41
Forward (tiller handle and remote
control models) ............................. 41
Reverse (automatic reverse lock
and power trim and tilt models)..... 41
Stopping engine ............................ 42
Procedure ....................................... 42
Trimming outboard motor.............. 42
Adjusting trim angle ........................ 43
Adjusting boat trim .......................... 43
Tilting up and down ....................... 44
Procedure for tilting up (power trim
and tilt models / power tilt
models)......................................... 45
Procedure for tilting down (power
trim and tilt models / power tilt
models)......................................... 46
Cruising in shallow water .............. 46
Power trim and tilt models / power
tilt models...................................... 46
Cruising in other conditions........... 47
Maintenance..................................... 48
Specifications ................................ 48
Transporting and storing outboard
motor ...........................................49
Storing outboard motor ................... 49
Procedure ....................................... 50
Lubrication (oil injection models)..... 50
Cleaning and anticorrosion
measures...................................... 50
Battery care..................................... 51
Flushing power unit......................... 51
Cleaning the outboard motor .......... 52
Checking painted surface of
motor............................................. 52
Periodic maintenance.................... 53
Replacement parts.......................... 53
Maintenance chart .......................... 54
Maintenance chart (additional)........ 55
Greasing ......................................... 56
Cleaning and adjusting spark
plug ............................................... 56
Checking fuel system ...................... 57
Inspecting idling speed.................... 58
Checking water in engine oil
tank ............................................... 59
Checking wiring and connectors ..... 59
Exhaust leakage.............................. 59
Water leakage ................................. 59
Checking power trim and tilt
system...........................................59
Checking propeller .......................... 60
Removing the propeller ................... 61
Installing the Propeller..................... 61
Changing gear oil............................ 62
Inspecting and replacing
anode(s)........................................ 63
Checking battery (for electric start
models) ......................................... 63
Connecting the Battery.................... 64
Disconnecting the battery................ 65
Checking top cowling ...................... 65
Coating the boat bottom.................. 66
Trouble Recovery............................ 67
Troubleshooting ............................ 67
Temporary action in emergency ... 70
Impact damage ...............................70
Replacing fuse ................................70
Power trim and tilt / power tilt will
not operate.................................... 71
Water separator warning indicator
blinks while cruising ...................... 71
Engine fails to operate .................. 73
Low oil level warning activates........ 73
Treatment of submerged motor .... 74
Procedure........................................ 74
Consumer information ................... 75
Important warranty information for
U.S.A. and Canada ..................... 75
YAMAHA MOTOR
CORPORATION, U.S.A.
OUTBOARD MOTOR TWO
YEAR LIMITED WARRANTY ..... 77
IMPORTANT WARRANTY
INFORMATION IF YOU USE
YOUR YAMAHA OUTSIDE THE
Table of contents
USA OR CANADA ...................... 80
1
General information
EMU25170
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is
stamped on the label attached to the port
side of the clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is sto-
len.
EMU25190
Key number
If a main key switch is equipped with the mo-
tor, the key identification number is stamped
on your key as shown in the illustration.
Record this number in the space provided for
reference in case you need a new key.
EMU25221
Emission control information
EMU25230
North American models
This engine conforms to U.S. Environmental
Protection Agency (EPA) regulations for ma-
rine SI engines. See the label affixed to your
engine for details.
EMU25252
Approval label of emission control certif-
icate
This label is attached to the bottom cowling.
New Technology ; (4-stroke/HPDI) DFI
1. Outboard motor serial number location
1
ZMU01854
1. Key number
1. Approval label location
1
ZMU04842
General information
2
EMU25262
Manufactured date label
This label is attached to the clamp bracket or
the swivel bracket.
EMU25272
Star labels
Your outboard motor is labeled with a Cali-
fornia Air Resources Board (CARB) star la-
bel. See below for a description of your
particular label.
EMU25280
One Star Low Emission—
The one-star label identifies engines that
meet the Air Resources Board s 2001 ex-’
haust emission standards. Engines meeting
these standards have 75% lower emissions
than conventional carbureted two-stroke en-
gines. These engines are equivalent to the
U.S. EPA s 2006 standards for marine en-’
gines.
EMU25290
Two Stars Very Low Emission—
The two-star label identifies engines that
meet the Air Resources Board s 2004 ex-’
haust emission standards. Engines meeting
these standards have 20% lower emissions
than One Star-Low-Emission engines.
1. Manufactured date label location
ZMU05236
ZMU04843
1
Manufactured:
ZMU04346
1. Star labels location
1
ZMU04844
ZMU01702
General information
3
EMU25300
Three Stars Ultra Low Emission—
The three-star label identifies engines that
meet the Air Resources Board s 2008 ex-’
haust emission standards. Engines meeting
these standards have 65% lower emissions
than One Star-Low-Emission engines.
EMU25362
Safety information
●Before mounting or operating the outboard
motor, read this entire manual. Reading it
should give you an understanding of the
motor and its operation.
●Before operating the boat, read any own-
er’s or operator’s manuals supplied with it
and all labels. Be sure you understand
each item before operating.
●Do not overpower the boat with this out-
board motor. Overpowering the boat could
result in loss of control. The rated power of
the outboard should be equal to or less
than the rated horsepower capacity of the
boat. If the rated horsepower capacity of
the boat is unknown, consult the dealer or
boat manufacturer.
●Do not modify the outboard. Modifications
could make the motor unfit or unsafe to
use.
●Incorrect propeller selection and incorrect
use may not only cause engine damage,
but also adversely affect fuel consumption.
Consult your dealer for correct use.
●Never operate after drinking alcohol or tak-
ing drugs. About 50% of all boating fatali-
ties involve intoxication.
●Have an approved personal flotation de-
vice (PFD) on board for every occupant. It
is a good idea to wear a PFD whenever
boating. At a minimum, children and non-
swimmers should always wear PFDs, and
everyone should wear PFDs when there
are potentially hazardous boating condi-
tions.
●Gasoline is highly flammable, and its va-
pors are flammable and explosive. Handle
and store gasoline carefully. Make sure
there are no gas fumes or leaking fuel be-
fore starting the engine.
●This product emits exhaust gases which
contain carbon monoxide, a colorless,
odorless gas which may cause brain dam-
age or death when inhaled. Symptoms in-
clude nausea, dizziness, and drowsiness.
Keep cockpit and cabin areas well ventilat-
ed. Avoid blocking exhaust outlets.
●Check throttle, shift, and steering for prop-
er operation before starting the engine.
●Attach the engine stop switch lanyard cord
to a secure place on your clothing, or your
arm or leg while operating. If you acciden-
tally leave the helm, the cord will pull from
ZMU01703
ZMU01704
General information
4
the switch, stopping the engine.
●Know the marine laws and regulations
where you will be boating and obey—
them. For basic boating rules, see “Rules
of the road on page 5.”
●Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
●Tell someone where you are going: leave
a Float Plan with a responsible person. Be
sure to cancel the Float Plan when you re-
turn.
●Use common sense and good judgment
when boating. Know your abilities, and be
sure you understand how your boat han-
dles under the different boating conditions
you may encounter. Operate within your
limits, and the limits of your boat. Always
operate at safe speeds, and keep a careful
watch for obstacles and other traffic.
●Always watch carefully for swimmers dur-
ing the engine operation.
●Stay away from swimming areas.
●When a swimmer is in the water near you
shift into neutral and shut off the engine.
●Do not illegally discard empty containers
used to replace or replenish oil. For the
correct processing of empty containers,
consult the dealer where you purchased
the oil.
●When replacing oils used to lubricate the
product (engine or gear oil), be sure to
wipe away any spilt oil. Never pour oil with-
out using a funnel or similar device. If nec-
essary, verify the necessary replacement
procedure with the dealer.
●Never illegally discard (dump) the product.
Yamaha recommends consulting the deal-
er on discarding the product.
Be informed about boating safety. Additional
publications and information can be obtained
from many organizations, including the fol-
lowing:
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and Consumer Af-
fairs
U.S. Coast Guard Headquarters
Washington, D.C. 20593-0001
Boating Safety Hotline: 1-800-368-5647
National Marine Manufacturers Associa-
tion (NMMA)
401 N. Michigan Ave.
Chicago, Il 60611
Marine Retailers Association of America
155 N. Michigan Ave.
Chicago, Il 60601
EMU25382
Important labels
EMU25395
Warning labels
ZMU02362
ZMU01948
General information
5
EMU25401
Label
WARNING
EWM01260
●Be sure shift control is in neutral before
starting engine. (except 2HP)
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands, hair, and clothes away
from flywheel and other rotating parts
while engine is running.
EMU25451
Label
ENGINE OIL ONLY
●Pour the engine oil into this oil tank, not
gasoline.
RECOMMENDED OIL:
YAMALUBE 2 STROKE OUTBOARD OIL or
an equivalent TC-W3 certified ouboard oil.
WARNING
EWM01270
Do not add gasoline to the oil tank. Fire
explosion could result.
EMU25465
Caution labels
EMU30690
Label
CAUTION:
ECM01480
USE UNLEADED STRAIGHT GASOLINE
ONLY
●Gasoline containing lead can cause
performance loss and engine damage.
●Do not use gasoline mixed with oil (pre-
mix).
●Recommended engine oil: YAMALUBE
2-stroke outboard oil.
Refer to Owner s manual.’
EMU25500
Basic boating rules (Rules of
the road)
Just as there are rules which apply when you
are driving on streets and high ways, there
are waterway rules which apply when you
are driving your boat. These rules are used
internationally, and are also enforced by the
United States Coast Guard and local agen-
cies. You should be aware of these rules,
and follow them whenever you encounter
another vessel on the water.
Several sets of rules prevail according to
geographic location, but are all basically the
same as the International Rules of the Road.
The rules presented here in your Owner’s
Manual are condensed, and have been pro-
vided for your convenience only. Consult
your local U.S. Coast Guard Auxiliary or De-
partment of Motor Vehicles for a complete
set of rules governing the waters in which
you will be using your boat.
EMU25510
Steering and sailing rules and sound
signals
Whenever two vessels on the water meet
one another, one vessel has the right-of-
way; it is called the vessel. The“ ”stand-on
vessel which does not have the right-of-way
is called the or vessel.“ ”give-way “ ”burdened
These rules determine which vessel has the
right-of-way, and what each vessel should
do.
Stand-on vessel
The vessel with the right-of-way has the duty
ZMU01949
General information
6
to continue its course and speed, except to
avoid an immediate collision. When you
maintain your direction and speed, the other
vessel will be able to determine how best to
avoid you.
Give-way vessel
The vessel which does not have the right-of-
way has the duty to take positive and timely
action to stay out of the way of the Stand-On
vessel. Normally, you should not cross in
front of the vessel with the right-of-way. You
should slow down or change directions brief-
ly and pass behind the other vessel. You
should always move in such a way that the
operator of the other vessel can see what
you are doing.
“ ”The general prudential rule
This rule is called Rule 2 in the International
Rules and says,
“In obeying and construing these rules due
regard shall be had to all dangers of naviga-
tion and collision, and to any special circum-
stances, which may render a departure from
the above rules necessary in order to avoid
immediate danger.”
In other words, follow the standard rules ex-
cept when a collision will occur unless both
vessels try to avoid each other. If that is the
case, both vessels become ves-“ ”Give-Way
sels.
EMU25520
Rules when encountering vessels
There are three main situations which you
may encounter with other vessels which
could lead to a collision unless the Steering
Rules are followed:
Meeting: (you are approaching another ves-
sel head-on)
Crossing: (you are traveling across the oth-
er vessel s path)’
Overtaking: (you are passing or being
passed by another vessel)
In the following illustration, your boat is in the
center. You should give the right-of-way to
any vessels shown in white area (you are the
Give-Way vessel). Any vessels in the shad-
ed area must yield to you (they are the Give-
Way vessels). Both you and the meeting
vessel must alter course to avoid each other.
Meeting
If you are meeting another power vessel
head on, and are close enough to run the risk
of collision, neither of you has the right-of-
way! Both of you should alter course to avoid
an accident. You should keep the other ves-
sel on your port (left) side. This rule doesn’t
apply if both of you will clear one another if
you continue on your set course and speed.
Crossing
When two power driven vessels are crossing
each other s path close enough to run the’
risk of collision, the vessel which has the oth-
er on the starboard (right) side must keep out
General information
7
of the way of the other. If the other vessel is
on your right, you must keep out of its way;
you are the Give-Way vessel. If the other
vessel is on your port (left) side, remember
that you should maintain course and direc-
tion, provided the other vessel gives you the
right-of-way as it should.
Overtaking
If you are passing another vessel, you are
the Give-Way“ ” vessel. This means that the
other vessel is expected to maintain its
course and speed. You must stay out of its
way until you are clear of it. Likewise, if an-
other vessel is passing you, you should
maintain your speed and direction so that the
other vessel can steer itself around you.
EMU25530
Other special situations
There are three other rules you should be
aware of when driving your boat around oth-
er vessels.
Narrow channels and bends
When navigating in narrow channels, you
should keep to the right when it is safe and
practical to do so. If the operator of a power-
driven vessel is preparing to go around a
bend that may obstruct the view of other wa-
ter vessels, the operator should sound a pro-
longed blast on the whistle (4 to 6 seconds).
If another vessel is around the bend, it too
should sound the whistle. Even if no reply is
heard, however, the vessel should still pro-
ceed around the bend with caution. If you
navigate such waters with your boat, you will
need to carry a portable air horn, available
from local marine supply stores.
Fishing vessel right-of-way
All vessels which are fishing with nets, lines
or trawls are considered to be fishing ves-“
sels” under the International Rules. Vessels
with trolling lines are not considered fishing
vessels. Fishing vessels have the right-of-
way regardless of position. Fishing vessels
cannot, however, impede the passage of
other vessels in narrow channels.
Sailing vessel right-of-way
Sailing vessels should normally be given the
right-of-way. The exceptions to this are:
1. When the sailing vessel is overtaking
the power-driven vessel, the power-driv-
en vessel has the right-of-way.
2. Sailing vessels should keep clear of any
fishing vessel.
3. In a narrow channel, a sailing vessel
should not hamper the safe passage of
a power-driven vessel which can navi-
gate only in such a channel.
Reading buoys and other markers
The waters of the United states are marked
for safe navigation by the lateral system of
buoyage. Simply put, buoys and markers
have an arrangement of shapes, colors,
numbers and lights to show which side of the
buoy a boater should pass on when navigat-
ing in a particular direction. The markings on
these buoys are oriented from the perspec-
tive of being entered from seaward (the boat-
er is going towards the port). This means that
red buoys are passed on the starboard
(right) side when proceeding from open wa-
ter into port, and black buoys are to port (left)
side. When navigating out of port, your posi-
General information
8
tion with respect to the buoys should be re-
versed; red buoys should be to port and
black buoys to starboard.
Many bodies of water used by boaters are
entirely within the boundaries of a particular
state. The Uniform State Waterway Marking
System has been devised for these waters.
This system uses buoys and signs with dis-
tinctive shapes and colors to show regulato-
ry or advisory information. These markers
are white with black letters and orange
boarders. They signify speed zones, restrict-
ed areas, danger areas, and general infor-
mation.
Remember, markings may vary by geo-
graphic location. Always consult local boat-
ing authorities before driving your boat in
unfamiliar waters.
General information
9
EMU25540
Fueling instructions
WARNING
EWM00010
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
●Do not smoke when refueling, and keep
away from sparks, flames, or other
sources of ignition.
●Stop engine before refueling.
●Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat.
●Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
ZMU01708
General information
10
dry rags.
●Do not overfill the fuel tank.
●Tighten the filler cap securely after re-
fueling.
●If you should swallow some gasoline,
inhale a lot of gasoline vapor, or get
gasoline in your eyes, get immediate
medical attention.
●If any gasoline spills onto your skin, im-
mediately wash with soap and water.
Change clothing if gasoline spills on it.
●Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electro-
static sparks.
CAUTION:
ECM00010
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign mat-
ter.
EMU25570
Gasoline
If knocking or pinging occurs, use a different
brand of gasoline or premium unleaded fuel.
Gasohol
There are two types of gasohol: gasohol con-
taining ethanol and that containing metha-
nol. Gasohol containing ethanol can be used
if ethanol content does not exceed 10% and
the fuel meets minimum octane ratings.
Yamaha does not recommended gasohol
containing methanol because it can cause
fuel system damage or engine performance
problems.
EMU25660
Engine oil
Use Yamalube 2-M outboard oil. If Ya-
malube 2-M is not available, use only anoth-
er outboard motor manufacturer’s factory-
brand oil with TC-W3 rating.
CAUTION:
ECM01290
Serious engine damage can result from
the use of lower quality oil, including
some commonly available oil brands with
“ ”TC-W3 on their label. To avoid the risk,
use only Yamalube 2-M or, if necessary,
another outboard motor manufacturer’s
factory-brand TC-W3 oil.
EMU25700
Battery requirement
CAUTION:
ECM01060
Do not use a battery that does not meet
the specified capacity. If a battery which
does not meet specifications is used, the
electric system could perform poorly or
be overloaded, causing electric system
damage.
For electric start models, choose a battery
which meets the following specifications.
Recommended gasoline:
Regular unleaded gasoline with a min-
imum octane rating of 86 (Pump Oc-
tane Number) = (R+M)/2
Recommended engine oil:
YAMALUBE 2 STROKE OUTBOARD
OIL
General information
11
EMU25711
Battery specifications
NOTE:
The engine cannot be started if battery volt-
age is too low.
EMU25742
Propeller selection
The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely
affect performance and could also seriously
damage the motor. Engine speed depends
on the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are fitted with pro-
pellers chosen to perform well over a range
of applications, but there may be uses where
a propeller with a different pitch would be
more appropriate. For a greater operating
load, a smaller-pitch propeller is more suit-
able as it enables the correct engine speed
to be maintained. Conversely, a larger-pitch
propeller is more suitable for a smaller oper-
ating load.
Yamaha dealers stock a range of propellers,
and can advise you and install a propeller on
your outboard that is best suited to your ap-
plication.
NOTE:
Select a propeller which will allow the engine
to reach the middle or upper half of the oper-
ating range at full throttle with the maximum
boat load. If operating conditions such as
light boat loads then allow the engine r/min to
rise above the maximum recommended
range, reduce the throttle setting to maintain
the engine in the proper operating range.
For instructions on propeller removal and in-
stallation, see page 60.
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-ap-
proved remote control units are equipped
with start-in-gear protection device(s). This
feature permits the engine to be started only
when it is in neutral. Always select neutral
before starting the engine.
Minimum cold cranking amps
(CCA/SAE):
512.0 A
Minimum marine cranking amps
(MCA/ABYC):
675.0 A
Minimum reserve capacity (RC/SAE):
182 minutes
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04607
-x
1 2 3
12
Basic components
EMU25799
Main components
NOTE:
* May not be exactly as shown; also may not be included as standard equipment on all mod-
els.
VZ200, VZ225, VZ250, VZ300
T RI P
T RI P
T RI P
T RI P
T RI P
T I M E
T I M E
T I M E
T I M E
T I M E
BAT T
BAT T
BAT T
BAT T
BAT T
Km/h
Km/h
Km/h
Km/h
Km/h
knot
knot
knot
knot
knot
mp h
mp h
mp h
mp h
mp h
km
km
km
km
km
mile
mile
mile
mile
mile
SPEED
SPEED
SPEED
SPEED
SPEED
YAMAHA
YAMAHA
YAMAHA
YAMAHA
YAMAHA
se t
se t
se t
se tse t mod e
mode
mode
modemode
18
14
19
15
16 17
1
2
13
12
9
10
8
7
6
5
3
4
2
ZMU04845
11
1. Top cowling
2. Top cowling lock lever(s)
3. Trim tab
4. Propeller*
5. Cooling water inlet
6. Anti-cavitation plate
7. Anode
8. Clamp bracket
9. Tilt support lever
10. Flushing device
11. Water separator
12. Power trim and tilt switch
13. Cooling water pilot hole
14. Digital tachometer*
15. Digital speedometer*
16. Tachometer*
17. Trim meter*
18. Remote control box (side mount type)*
19. Remote oil tank*
Basic components
13
EMU26180
Remote control
The remote control lever actuates both the
shifter and the throttle. The electrical switch-
es are mounted on the remote control box.
1
4 6
3
2
5
ZMU05429
1. Tachometer unit (Square type)*
2. Tachometer unit (Round type)*
3. Speedometer unit (Square type)*
4. Speed & fuel meter unit (Square type)*
5. Speed & fuel meter unit (Round type)*
6. Fuel management meter (Square type)*
1. Power trim and tilt switch
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch / choke switch
6. Engine stop lanyard switch
7. Throttle friction adjuster
Basic components
14
EMU26190
Remote control lever
Moving the lever forward from the neutral po-
sition engages forward gear. Pulling the le-
ver back from neutral engages reverse. The
engine will continue to run at idle until the le-
ver is moved about 35 (a detent can be felt).°
Moving the lever farther opens the throttle,
and the engine will begin to accelerate.
EMU26201
Neutral interlock trigger
To shift out of neutral, first pull the neutral in-
terlock trigger up.
EMU26211
Neutral throttle lever
To open the throttle without shifting into ei-
ther forward or reverse, put the remote con-
trol lever in the neutral position and lift the
neutral throttle lever.
NOTE:
The neutral throttle lever will operate only
when the remote control lever is in neutral.
The remote control lever will operate only
when the neutral throttle lever is in the closed
position.
EMU25971
Throttle friction adjuster
A friction device provides adjustable resis-
tance to movement of the throttle grip or the
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
1. Neutral interlock trigger
1. Fully open
2. Fully closed
Basic components
15
remote control lever, and can be set accord-
ing to operator preference.
To increase resistance, turn the adjuster
clockwise. To decrease resistance, turn the
adjuster counterclockwise.
WARNING
EWM00031
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to move the remote control lever
or throttle grip, which could result in an
accident.
When constant speed is desired, tighten the
adjuster to maintain the desired throttle set-
ting.
EMU25990
Engine stop lanyard switch
The lock plate must be attached to the en-
gine stop switch for the engine to run. The
lanyard should be attached to a secure place
on the operator s clothing, or arm or leg.’
Should the operator fall overboard or leave
the helm, the lanyard will pull out the lock
plate, stopping ignition to the engine. This
will prevent the boat from running away un-
der power.
WARNING
EWM00120
●Attach the engine stop switch lanyard
to a secure place on your clothing, or
your arm or leg while operating.
●Do not attach the lanyard to clothing
that could tear loose. Do not route the
lanyard where it could become entan-
gled, preventing it from functioning.
●Avoid accidentally pulling the lanyard
during normal operation. Loss of en-
gine power means the loss of most
steering control. Also, without engine
power, the boat could slow rapidly. This
could cause people and objects in the
boat to be thrown forward.
NOTE:
The engine cannot be started with the lock
plate removed.
EMU26090
Main switch
The main switch controls the ignition system;
its operation is described below.
●“ ” (off)
With the main switch in the “ ” (off) posi-
tion, the electrical circuits are off, and the key
can be removed.
●“ ” (on)
With the main switch in the “ ” (on) posi-
tion, the electrical circuits are on, and the key
cannot be removed.
1. Lanyard
2. Lock plate
Basic components
16
●“ ” (start)
With the main switch in the “ ” (start) po-
sition, the starter motor turns to start the en-
gine. When the key is released, it returns
automatically to the “ ” (on) position.
EMU26141
Power trim and tilt switch on remote
control or tiller handle
The power trim and tilt system adjusts the
outboard motor angle in relation to the tran-
som. Pressing the switch “ ” (up) trims the
outboard motor up, then tilts it up. Pressing
the switch “ ” (down) tilts the outboard mo-
tor down and trims it down. When the switch
is released, the outboard motor will stop in its
current position.
NOTE:
For instructions on using the power trim and
tilt switch, see pages 42 and 44.
EMU26151
Power trim and tilt switch on bottom
engine cowling
The power trim and tilt switch is located on
the side of the bottom engine cowling. Press-
ing the switch “ ” (up) trims the outboard
motor up, then tilts it up. Pressing the switch
“ ” (down) tilts the outboard motor down
and trims it down. When the switch is re-
leased, the outboard motor will stop in its
current position.
WARNING
EWM01030
Use the power trim and tilt switch located
on the bottom engine cowling only when
the boat is at a complete stop with the en-
gine off. Attempting to use this switch
while the boat is moving could increase
the risk of falling overboard and could
distract the operator, increasing the risk
of collision with another boat or an obsta-
cle.
NOTE:
For instructions on using the power trim and
tilt switch, see page 44.
EMU26241
Trim tab with anode
The trim tab should be adjusted so that the
steering control can be turned to either the
right or left by applying the same amount of
UP
DN
ZMU01862
Basic components
17
force.
WARNING
EWM00840
An improperly adjusted trim tab could
cause difficult steering. Always test run
after the trim tab has been installed or re-
placed to be sure steering is correct. Be
sure you have tightened the bolt after ad-
justing the trim tab.
If the boat tends to veer the left (port side),
turn the trim tab rear end to the port side “ ”A
in the figure. If the boat tends to veer the right
(starboard side), turn the trim tab end to the
starboard side B in the figure.“ ”
CAUTION:
ECM00840
The trim tab also serves as an anode to
protect the engine from electrochemical
corrosion. Never paint the trim tab as it
will become ineffective as an anode.
EMU26340
Tilt support lever for power trim and
tilt or hydro tilt model
To keep the outboard motor in the tilted up
position, lock the tilt support lever to the
clamp bracket.
EMU26391
Top cowling lock levers
To remove the outboard motor top cowling,
pull up the front and rear lock levers. Then lift
off the cowling. When the cowling, check to
be sure it fits properly in the rubber seal.
Then lock the cowling again by moving the
levers downward.
CAUTION:
ECM00550
The air intake grille on the top cowling is
not designed as a handle and could break
1. Trim tab
2. Bolt
3. Cap
A
BZMU01863
ZMU01864
Basic components
18
if used as such.
EMU26460
Flushing device
This device is used to clean the cooling wa-
ter passages of the motor using a garden
hose and tap water.
NOTE:
For details on usage, see page 51.
EMU31702
Water separator
This engine has a combination fuel filter/wa-
ter separator and associated warning sys-
tem. If water separated from the fuel
exceeds a specific volume, the warning de-
vice will activate.
Activation of warning device
●The water separator warning indicator will
blink.
●The buzzer will sound intermittently only
when the gear shift is in neutral.
●If the warning system has activated, stop
the engine and consult a Yamaha dealer
immediately.
EMU26470
Tachometer
This gauge shows the engine speed and has
the following functions.
1. Top cowling lock lever(s)
1. Air intake grille
2. Top cowling lock lever(s)
ZMU04840
1
1 1
22
ZMU04841
1. Flushing device
1
ZMU01866
ZMU05499
Basic components
19
EMU26491
Digital tachometer
The tachometer shows the engine speed
and has the following functions.
NOTE:
All segments of the display will light momen-
tarily after the main switch is turned on and
will return to normal thereafter.
NOTE:
The water separator and engine trouble
warning indicators only operate when the en-
gine is equipped with the appropriate func-
tions.
EMU26540
Oil level indicators (three indicators)
The indicators on the gauge show the status
of the oil level. For details on how to read the
indicators, see page 38.
CAUTION:
ECM00030
Do not operate the engine without oil. Se-
rious engine damage will occur.
EMU26550
Oil level indicator (digital type)
This indicator shows the engine oil level. If
the oil level falls below the lower limit, the
warning indicator will start to blink. For fur-
ther information, see page 30.
CAUTION:
ECM00030
Do not operate the engine without oil. Se-
rious engine damage will occur.
1. Tachometer
2. Warning indicator(s)
1. Tachometer
2. Trim meter
3. Hour meter
4. Oil level indicator
5. Overheat warning indicator
6. Water separator warning indicator
7. Engine trouble warning indicator
8. Set button
9. Mode button
ZMU04577
1
2
6
7
2
4
9
8
5
3
1
ZMU01958
1. Oil level indicators
ZMU04580
1
Basic components
20
EMU26581
Overheat warning indicator (digital
type)
If the engine temperature rises too high, the
warning indicator will start to blink. For fur-
ther information on reading the indicator, see
page 29.
CAUTION:
ECM00050
Do not continue to run the engine if the
overheat warning indicator is on. Serious
engine damage will occur.
EMU26600
Speedometer (digital type)
This gauge shows the boat speed.
NOTE:
After the main switch is first turned on, all
segments of the display come on as a test.
After a few seconds, the gauge will change
to normal operation. Watch the gauge when
turning on the main switch to make sure all
segments come on.
NOTE:
The speedometer displays km/h, mph, or
knots, according to operator preference. Se-
lect the desired unit of measurement by set-
ting the selector switch on the back of the
gauge. See the illustration for settings.
1. Oil level indicator
1. Overheat warning indicator
1ZMU01867
1
ZMU01868
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Warning indicator(s)
1. Cap
2. Selector switch (for speed unit)
Basic components
21
EMU26610
Trim meter
This gauge shows the trim angle of your out-
board motor.
NOTE:
Memorize the trim angles that work best for
your boat under different conditions. Adjust
the trim angle to the desired setting with the
power trim and tilt switch.
EMU26620
Trim meter (digital type)
This meter shows the trim angle of your out-
board motor.
NOTE:
●Memorize the trim angles that work best
for your boat under different conditions.
Adjust the trim angle to the desired using
the power trim and tilt switch.
●If the trim angle of your motor exceeds the
trim operating range, the top segment on
the trim meter display will blink.
EMU26650
Hour meter (digital type)
This meter shows the number of hours the
engine has been run. It can be set to show
the total number of hours or the number of
hours for the current trip. The display can
also be turned on and off.
●Changing the display format
●Pressing the “ ” (mode) button chang-
es the display format in the following pat-
tern:
●Total hours→Trip hours→Display off
●Resetting the trip hours
●Simultaneously pressing the “ ” (set)
and “ ” (mode) buttons for more than
1 second while the trip hours are displayed
resets the trip counter to 0 (zero).
NOTE:
The total number of hours the engine has
been run cannot be reset.
3. Selector switch (for fuel sensor)
ZMU04581
ZMU01869
ZMU01870
Basic components
22
EMU26690
Trip meter
This gauge displays the distance the boat
has traveled since the gauge was last reset.
Press the “ ” (mode) button repeatedly
until the indicator on the face of the gauge
points to “ ” (trip). To reset the trip meter
to zero, press the “ ” (set) and “ ”
(mode) buttons at the same time.
NOTE:
●The trip distance is shown in kilometers or
miles depending upon the unit of measure-
ment selected for the speedometer.
●The trip distance is kept in memory by bat-
tery power. The stored data will be lost if
the battery is disconnected.
EMU26700
Clock
Press the “ ” (mode) button repeatedly
until the indicator on the face of the gauge
points to “ ” (time). To set the clock, be
sure the gauge is in the “ ” (time) mode.
Press the “ ” (set) button; the hour display
will begin blinking. Press the “ ” (mode)
button until the desired hour is displayed.
Press the “ ” (set) button again, the minute
display will begin blinking. Press the “ ”
(mode) button until the desired minute is dis-
played. Press the “ ” (set) button again to
start the clock.
NOTE:
The clock operates on battery power. Dis-
connecting the battery will stop the clock.
Reset the clock after connecting the battery.
EMU26710
Fuel gauge
The fuel level is indicated by eight segments.
When all segments are showing, the fuel
tank is full.
CAUTION:
ECM00860
The Yamaha fuel tank sensor differs from
conventional sensors. Incorrectly setting
the selector switch on the gauge will give
false readings. Consult your Yamaha
dealer on how to correctly set the selec-
tor switch.
NOTE:
The fuel level reading can be affected by the
position of the sensor in the fuel tank and the
attitude of the boat in the water. Operation
with bow-up trim or continuous turning can
give false readings.
Basic components
23
EMU26720
Fuel warning indicator
If the fuel level decreases to one segment,
the fuel level warning segment will begin to
blink.
CAUTION:
ECM00880
Do not continue to operate the engine
with full throttle if a warning device has
activated. Get back to the port within troll-
ing engine speed.
EMU26730
Low battery voltage warning
indicator
If battery voltage drops, the display will auto-
matically turn on and begin to blink.
CAUTION:
ECM00870
Get back to the port soon if a warning de-
vice has activated. For charging the bat-
tery, consult your Yamaha dealer.
EMU31640
Command link multifunction meters
Command link multifunction meters have 6
kinds of meter units; tachometer unit (square
or round types), speedometer unit (square
type), speed & fuel meter unit (square or
round types), and fuel management meter
(square type). The indicator system is slight-
ly different between the round and square
types. Check the model and type of your unit
carefully. This manual describes mainly the
warning indicators. For more details on set-
ting meters or changing indicator systems,
see the attached operation manual.
EMU31660
Tachometer unit
The tachometer shows the engine revolu-
tions per minute. It has functions of trim
meter, adjusting trolling speed, cooling wa-
ter/engine temperature display, battery volt-
age display, total hour/trip hour display, oil
level display, water detection warning, en-
gine trouble warning, and periodic mainte-
nance notification. If optional sensors are
connected to the unit, cooling water pressure
display will be available. For the optional
sensor, consult your Yamaha dealer. The ta-
1. Fuel level warning segment
ZMU01745
1. Low battery indicator
Basic components
24
chometer unit is available in round or square
types. Check your tachometer unit type.
NOTE:
The tachometer unit shows various kinds of
information according to the setting made
using the “ ” (set) and “ ” (mode) but-
tons. For details, see the attached operation
manual.
1. Set button
2. Mode button
1. Tachometer
2. Trim meter
3. Multifunction display
4. Cooling water pressure
5. Cooling water/engine temperature
6. Water detection warning indicator
7. Battery voltage
8. Oil level (2-stroke models)
2
1
ZMU05415
2
3
1
4
5
6
7
8
ZMU05452
1. Set button
2. Mode button
1. Tachometer
2. Trim meter
3. Multifunction display
4. Water detection warning indicator
5. Engine trouble warning/maintenance indica-
tor
6. Cooling water pressure
7. Oil level (2-stroke models)
8. Cooling water/engine temperature
9. Battery voltage
2
1
ZMU05417
1 4 5 2
3
6 97 8 ZMU05453
Basic components
25
Preoperation checks
Place the gear shift lever in neutral and turn
the main switch to “ ” (on). After all the dis-
plays come on and the total hour display
comes on, the gauge will change to normal
operation. If the buzzer sounds and the wa-
ter separator warning indicator blinks, con-
sult your Yamaha dealer immediately.
NOTE:
To stop the buzzer, press the “ ” (set) or
“ ” (mode) button.
Oil level warning
When the oil level is low while cruising, the
oil level warning indicator will start to blink.
The engine speed will automatically de-
crease to about 2000 r/min.
When the buzzer sounds and the oil level
warning indicator blinks, check the oil level
and add the oil if necessary. If the warning
device has activated while the appropriate
engine oil level is maintained, consult your
Yamaha dealer.
CAUTION:
ECM01580
Do not continue to run the engine if the oil
level warning device has activated. Seri-
ous engine damage will occur.
Overheat warning
If the engine temperature rises too high while
cruising, the overheat warning indicator will
start to blink. The engine speed will automat-
ically decrease to about 2000 r/min.
Stop the engine immediately if the buzzer
sounds and the overheat warning device has
activated. Check the cooling water inlet for
clogging.
CAUTION:
ECM01590
●Do not continue to run the engine if the
overheat warning indicator blinks. Seri-
ZMU05419
ZMU05420
ZMU05421
ZMU05422
Basic components
26
ous engine damage will occur.
●Do not continue to operate the engine if
a warning device has activated. Con-
sult your Yamaha dealer if the problem
cannot be located and corrected.
Water separator warning
This indicator will blink when water has accu-
mulated in the water separator (fuel filter)
while cruising. In such an event, stop the en-
gine immediately and see page 70 of this
manual to drain the water from the fuel filter.
Get back to the port soon and consult a
Yamaha dealer immediately.
CAUTION:
ECM00910
Gasoline mixed with water could cause
damage to the engine.
Engine trouble warning
This indicator will blink when the engine mal-
functions while cruising. Get back to the port
soon and consult a Yamaha dealer immedi-
ately.
CAUTION:
ECM00920
In such an event, the engine will not oper-
ate properly. Consult a Yamaha dealer
immediately.
Low battery voltage warning
When the battery voltage drops, the low bat-
tery voltage warning indicator and the bat-
tery voltage value will start to blink. Get back
to the port soon if the low battery voltage
warning device has activated. For charging
the battery, consult your Yamaha dealer.
ZMU05423
ZMU05424
ZMU05425
ZMU05426
Basic components
27
EMU31610
Speed & fuel meter unit
This unit shows the boat speed and has the
functions of fuel meter, total fuel consump-
tion display, fuel economy display, fuel flow
display, and system voltage display. If op-
tional sensors are connected to the unit, trip
display, water surface temperature display,
depth display, and clock will be available. For
the optional sensor, consult your Yamaha
dealer. The speed & fuel meter unit is avail-
able in round or square types. Check your
speed & fuel meter unit type.
ZMU05427
ZMU05428
1. Set button
2. Mode button
1. Speedometer
2. Fuel meter
3. Multifunction display
1. Set button
2. Mode button
2
1
ZMU05432
1
2
3
ZMU05433
2
1
ZMU05434
Basic components
28
NOTE:
After the main switch is first turned on, all the
displays come on as a test. After a few sec-
onds, the gauge will change to normal oper-
ation.
NOTE:
The speed & fuel meter unit shows various
kinds of information according to the setting
made with the “ ” (set) and “ ” (mode)
buttons. For details, see the attached opera-
tion manual.
EMU31620
Speedometer unit
This unit shows the boat speed and has
functions of fuel meter and system voltage
display. If optional sensors are connected to
the unit, trip display, water surface tempera-
ture display, depth display, and clock will be
available. For the optional sensor, consult
your Yamaha dealer.
NOTE:
After the main switch is first turned on, all the
displays come on as a test. After a few sec-
onds, the gauge will change to normal oper-
ation.
NOTE:
The speedometer unit shows various kinds
of information according to the setting made
using the “ ” (set) and “ ” (mode) but-
tons. In addition, the speedometer can show
the desired unit of measurement such as km/
h, mph, or knots. For details, see the at-
tached operation manual.
1. Fuel meter
2. Multifunction display
3. Speedometer
1 2
3ZMU05435
1. Set button
2. Mode button
1. Speedometer
2. Fuel meter
3. Multifunction display
2
1
ZMU05436
1
2
3
ZMU05437
Basic components
29
EMU31630
Fuel management meter
This meter has functions of fuel flow meter,
total consumption display, fuel economy dis-
play, and remaining fuel display.
NOTE:
After the main switch is first turned on, all the
displays come on as a test. After a few sec-
onds, the gauge will change to normal oper-
ation.
NOTE:
The fuel management meter shows various
kinds of information when the operator uses
the “ ” (set) and “ ” (mode) buttons.
For details, see the attached operation man-
ual.
EMU26801
Warning system
CAUTION:
ECM00090
Do not continue to operate the engine if a
warning device has activated. Consult
your Yamaha dealer if the problem can-
not be located and corrected.
EMU26816
Overheat warning
This engine has an overheat warning device.
If the engine temperature rises too high, the
warning device will activate.
Activation of warning device
●The engine speed will automatically de-
crease to about 2000 r/min.
●If equipped with an overheat warning indi-
cator, it will light or blink.
●The buzzer will sound (if equipped on the
1. Set button
2. Mode button
1. Fuel ow meterfl
2. Multifunction display
2
1
ZMU05438
1
2
ZMU05439
ZMU01757
ZMU04766
Basic components
30
tiller handle, remote control box, or main
switch panel).
If the warning system has activated, stop the
engine and check the cooling water inlet for
clogging.
EMU26846
Oil level warning and oil filter
clogging warning
Oil injection models
This engine has an oil level warning system.
If the oil level falls below the lower limit, the
warning system will activate.
Activation of warning device
●Engine speed will automatically decrease
to about 2000 r/min.
●The oil level warning indicator will light or
blink.
●The buzzer will sound (if equipped on the
tiller handle, remote control box, or main
switch panel).
ZMU02373
ZMU01871
ZMU03942
ZMU04586
Basic components
31
If the warning system has been activated,
stop the engine and check for the cause.
NOTE:
The warning for oil filter clogging is similar to
the warnings for low oil level and overheat-
ing. To make troubleshooting easier, check
for engine overheating first, then oil level,
and finally oil filter clogging.
1. Oil lterfi
ZMU03025
1
ZMU01872
1. Oil lterfi
1ZMU01952
32
Operation
EMU26901
Installation
CAUTION:
ECM00110
Incorrect engine height or obstructions
to smooth water flow (such as the design
or condition of the boat, or accessories
such as transom ladders or depth finder
transducers) can create airborne water
spray while the boat is cruising. Severe
engine damage may result if the motor is
operated continuously in the presence of
airborne water spray.
NOTE:
During water testing check the buoyancy of
the boat, at rest, with its maximum load.
Check that the static water level on the ex-
haust housing is low enough to prevent wa-
ter entry into the powerhead, when water
rises due to waves when the outboard is not
running.
EMU26910
Mounting the outboard motor
WARNING
EWM00820
●Overpowering a boat could cause se-
vere instability. Do not install an out-
board motor with more horsepower
than the maximum rating on the capac-
ity plate of the boat. If the boat does not
have a capacity plate, consult the boat
manufacturer.
●The information presented in this sec-
tion is intended as reference only. It is
not possible to provide complete in-
structions for every possible boat and
motor combination. Proper mounting
depends in part on experience and the
specific boat and motor combination.
WARNING
EWM00830
Improper mounting of the outboard mo-
tor could result in hazardous conditions
such as poor handling, loss of control, or
fire hazards. Observe the following:
●For permanently mounted models, your
dealer or other person experienced in
proper rigging should mount the motor.
If you are mounting the motor yourself,
you should be trained by an experi-
enced person.
●For portable models, your dealer or oth-
er person experienced in proper out-
board motor mounting should show
you how to mount your motor.
Mount the outboard motor on the center line
(keel line) of the boat, and ensure that the
boat itself is well balanced. Otherwise the
boat will be hard to steer. For boats without
a keel or which are asymmetrical, consult
your dealer.
EMU26950
Mounting height
To run your boat at optimum efficiency, the
water resistance (drag) of the boat and out-
board motor must be made as little as possi-
ble. The mounting height of the outboard
1. Center line (keel line)
1ZMU01873
Operation
33
motor greatly affects the water resistance. If
the mounting height is too high, cavitation
tends to occur, thus reducing the propulsion
and causing the engine to overheat. If the
mounting height is too low, the water resis-
tance will increase and thereby reduce en-
gine efficiency. Mount the outboard motor so
that the anti-cavitation plate is about 130 mm
(5 in.) above the bottom of the boat.
NOTE:
●The optimum mounting height of the out-
board motor is affected by the boat and
motor combination and the desired use.
Test runs at different heights can help de-
termine the optimum mounting height.
Consult your Yamaha dealer or boat man-
ufacturer for further information on deter-
mining the proper mounting height.
●For instructions on setting the trim angle of
the outboard motor, see page 42.
EMU27041
Breaking in engine
Your new engine requires a period of break-
in to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help en-
sure proper performance and longer engine
life.
CAUTION:
ECM00750
●Failure to follow the break-in procedure
could result in reduced engine life or
even severe engine damage.
●Do not use premixed fuel in this engine
because it could cause carbon depos-
its on the fuel injector and engine trou-
ble.
●Follow the instructions for break-in
carefully.
NOTE:
Leave the label pictured below on the top
cowling until the break-in procedure has
been completed. It may be removed after-
wards.
EMU27091
Procedure for HPDI models
Run the engine under load (in gear with a
propeller installed) for 10 hours as follows.
1. First 10 minutes:
Run the engine at the lowest possible
speed. A fast idle in neutral is best.
ZMU02098
130mm ( 5 in.)
ZMU01945
Operation
34
2. Next 50 minutes:
Do not exceed half throttle (approxi-
mately 3000 r/min). Vary engine speed
occasionally. If you have an easy-plan-
ing boat, accelerate at full throttle onto
plane, then immediately reduce the
throttle to 3000 r/min or less.
3. Next two hours:
Accelerate at full throttle onto plane,
then reduce engine speed to three-quar-
ter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at
full throttle for one minute, then allow
about 10 minutes of operation at three-
quarter throttle or less to let the engine
cool.
4. Remaining seven hours:
Run the engine at any speed. However,
avoid operating at full throttle for more
than 5 minutes at a time.
5. After the first 10 hours:
Operate the engine normally.
EMU27103
Preoperation checks
WARNING
EWM00080
If any item in the preoperation check is
not working properly, have it inspected
and repaired before operating the out-
board motor. Otherwise an accident
could occur.
CAUTION:
ECM00120
Do not start the engine out of water. Over-
heating and serious engine damage can
occur.
EMU31550
Fuel
●Check to be sure you have plenty of fuel
for your trip.
●Make sure there are no fuel leaks or gaso-
line fumes.
●Check fuel line connections to be sure they
are tight (if equipped Yamaha fuel tank or
boat tank).
●Be sure the fuel tank is positioned on a se-
cure, flat surface, and that the fuel line is
not twisted or flattened, or likely to contact
sharp objects (if equipped Yamaha fuel
tank or boat tank).
●Check the water in the fuel filter with the
water separator warning device. Place the
gear shift lever in neutral and turn the main
switch to “ ”(on). If the buzzer sounds
and the water separator warning indicator
blinks, consult your Yamaha dealer imme-
diately.
EMU27120
Oil
●Check to be sure you have plenty of oil for
your trip.
EMU27130
Controls
●Check throttle, shift, and steering for prop-
er operation before starting the engine.
●The controls should work smoothly, with-
out binding or unusual free play.
●Look for loose or damaged connections.
●Check operation of the starter and stop
switches when the outboard motor is in the
water.
EMU27150
Engine
●Check the engine and engine mounting.
●Look for loose or damaged fasteners.
●Check the propeller for damage.
●Check that the battery is in good condition
and the battery connections are secure.
EMU27221
Operation after a long period of
storage
When operating the engine after a long peri-
od (12 months) of storage, proceed as fol-
Operation
35
lows:
1. Start the engine. Leave it idling.
WARNING
EWM00090
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
2. Watch for oil flowing through the oil feed
pipes. After any air in the oil lines has
been expelled, the oil injection system
should supply oil normally. If no oil is
flowing after 10 minutes of idling, consult
your Yamaha dealer.
CAUTION:
ECM00560
●Be sure to take the above steps when
operating the engine after a long period
of storage. Otherwise engine seizure
could occur.
●Use straight gasoline only. If premix
fuel is used, the fuel injector could be
damaged.
ZMU01875
ZMU01876
Operation
36
EMU27233
Filling fuel and engine oil
EMU27270
Ring Free Fuel Additive
Gasoline is a precise blend of many different
substances, each chosen to give certain
characteristics. Gasoline blends have been
changing in recent years in response to con-
cerns about pollution and resulting emis-
sions regulations. One of the most obvious
changes has been the elimination of lead
from most fuels.
As gasoline has changed, the amount of ad-
ditives such as aromatics and oxygenates
has increased. These additives are impor-
tant for the engines in passenger cars, but
they can have detrimental effects in marine
engines, because of increased deposits in
the combustion chamber. When enough de-
posits collect, piston rings begin sticking.
Performance drops and engine wear in-
creases dramatically.
While many additives available may reduce
deposits, Yamaha recommends the use of
Ring Free Fuel Additive, available from
your Yamaha dealer. Ring Free Fuel Addi-
tive has repeatedly proven its ability to clean
combustion deposits from inside the engine,
notably the critical piston-ring-land area, and
fuel system components. Follow product la-
beling for use instructions.
EMU27292
Filling oil for oil injection models
WARNING
EWM00530
Do not add gasoline into the oil tank. Fire
or explosion could result.
This engine uses the Yamaha oil injection
system, which provides superior lubrication
by ensuring the proper oil ratio for all operat-
ing conditions. No fuel premixing is needed.
Simply pour gasoline into the fuel tank and
oil into the oil tank. Convenient indicators
show the status of the oil supply. For details
on how to read the indicators, see page 38.
To fill the engine oil tank, proceed as follows:
1. Pour engine oil into the remote oil tank.
NOTE:
The oil level lines on the remote oil tank indi-
cate the amount of additional oil that can be
added to the tank. The top oil level line indi-
cates approximately 1.9 L (0.5 US gal, 0.4
Imp gal) can be added, and the bottom oil
level line indicates approximately 3.8 L (1 US
gal, 0.8 Imp gal) can be added.
2. Turn on the main switch. The Yamaha
oil injection system will automatically
feed oil from the remote oil tank to the
engine oil tank.
3. Operate the engine normally.
CAUTION:
ECM00570
When the engine is operated for the first
time or stored for a period of time, a min-
imum of 5 liters (5.3 US qt, 4.4 Imp qt) of
oil should be kept in the remote oil tank.
Otherwise the oil-feed pump chamber will
not be filled with oil, and no oil will be
Remote oil tank capacity:
10.5 L (11.10 US qt) (9.24 Imp.qt)
ZMU01877
Operation
37
supplied.
Operation
38
EMU27321
Oil level indicator operation
The various functions of the oil level system are as follows:
EMU27381
Oil level indicator
Electric start models
Oil level
warning
indicator
(digital
tachometer)
Oil level warning
indicator (analog
tachometer)
Engine oil
tank
Remote oil
tank Remarks
Green
more than 300
cm3 (0.32 US
qt, 0.26 Imp
qt)
more than
1500 cm3 (1.6
US qt, 1.31
Imp qt) ●No re lling necessary.fi
Yellow
more than 300
cm3 (0.32 US
qt, 0.26 Imp
qt)
1500 cm3 (1.6
US qt, 1.31
Imp qt) or less
●Add oil; see page 36.
Red Yellow– –
Green
300 cm3 (0.32
US qt, 0.26
Imp qt) or less
more than
1500 cm3 (1.6
US qt, 1.31
Imp qt)
●Check oil lter for clog-fi
ging.
●Check battery cable
connection. Buzzer will
sound.
●Engine speed is auto-
matically reduced to
about 2000 r/min.
Red
300 cm3 (0.32
US qt, 0.26
Imp qt) or less
1500 cm3 (1.6
US qt, 1.31
Imp qt) or less
●Oil has not been added.
●Buzzer will sound.
●Engine speed is auto-
matically reduced to
about 2000 r/min.
●Buzzer sounds in
remote control box and
engine speed is limited
to about 2000 r/min to
help conserve oil.
Operation
39
EMU27450
Operating engine
EMU27482
Feeding fuel
WARNING
EWM00420
●Before starting the engine, make sure
that the boat is tightly moored and that
you can steer clear of any obstructions.
Be sure there are no swimmers in the
water near you.
●When the air vent screw is loosened,
gasoline vapor will be released. Gaso-
line is highly flammable, and its vapors
are flammable and explosive. Refrain
from smoking, and keep away from
open flames and sparks while loosen-
ing the air vent screw.
●This product emits exhaust gases
which contain carbon monoxide, a col-
orless, odorless gas which could cause
brain damage or death when inhaled.
Symptoms include nausea, dizziness,
and drowsiness. Keep cockpit and cab-
in areas well ventilated. Avoid blocking
exhaust outlets.
1. If there is an air vent screw on the fuel
tank cap, loosen it 2 or 3 turns.
2. If there is a fuel joint or a fuel cock on the
boat, firmly connect the fuel line to the
joint or open the fuel cock.
3. Squeeze the primer pump, with the ar-
row pointing up, until you feel it become
firm.
EMU27490
Starting engine
EMU27662
Electric start and remote control
models
1. Place the remote control lever in neutral.
NOTE:
The start-in-gear protection device prevents
the engine from starting except when in neu-
tral.
2. Attach the engine stop switch lanyard to
a secure place on your clothing, or your
arm or leg. Then install the lock plate on
the other end of the lanyard into the en-
gine stop switch.
WARNING
EWM00120
●Attach the engine stop switch lanyard
to a secure place on your clothing, or
1. Arrow
Operation
40
your arm or leg while operating.
●Do not attach the lanyard to clothing
that could tear loose. Do not route the
lanyard where it could become entan-
gled, preventing it from functioning.
●Avoid accidentally pulling the lanyard
during normal operation. Loss of en-
gine power means the loss of most
steering control. Also, without engine
power, the boat could slow rapidly. This
could cause people and objects in the
boat to be thrown forward.
3. Turn the main switch to “ ” (on).
4. Turn the main switch to “ ” (start),
and hold it for a maximum of 5 seconds.
5. Immediately after the engine starts, re-
lease the main switch and allow it to re-
turn to “ ” (on).
CAUTION:
ECM00191
●Never turn the main switch to “ ”
(start) while the engine is running.
●Do not keep the starter motor turning
for more than 5 seconds. If the starter
motor is turned continuously for more
than 5 seconds, the battery will be
quickly discharged, thus making it im-
possible to start the engine. The starter
can also be damaged. If the engine will
not start after 5 seconds of cranking,
return the main switch to “ ” (on), wait
10 seconds, then crank the engine
again.
NOTE:
●When the engine is cold, it needs to be
warmed up. For further information, see
page 40.
●If the engine is warm and fails to start,
open the throttle slightly and try to start the
engine again. If the engine still fails to
start, see page 67.
EMU27670
Warming up engine
EMU27702
Electric start and prime start models
1. After starting the engine, allow it to idle
for 3 minutes to warm up. Failure to do
so will shorten engine life.
2. Check for a steady flow of water from the
cooling water pilot hole.
CAUTION:
ECM00511
A continuous flow of water from the cool-
ing water pilot hole shows that the water
pump is pumping water through the cool-
ing passages. If water is not flowing out
of the hole at all times while the engine is
ZMU03239
Operation
41
running, overheating and serious dam-
age could occur. Stop the engine and
check whether the cooling water inlet on
the lower case or the cooling water pilot
hole is blocked. Consult your Yamaha
dealer if the problem cannot be located
and corrected.
EMU27740
Shifting
WARNING
EWM00180
Before shifting, make sure there are no
swimmers or obstacles in the water near
you.
CAUTION:
ECM00220
To change the boat direction or shifting
position from forward to reverse or vice-
versa, first close the throttle so that the
engine idles (or runs at low speeds).
EMU27764
Forward (tiller handle and remote
control models)
Tiller handle models
1. Place the throttle grip in the fully closed
position.
2. Move the gear shift lever quickly and
firmly from neutral to forward.
Remote control models
1. Pull up the neutral interlock trigger (if
equipped) and move the remote control
lever quickly and firmly from neutral to
forward.
EMU27785
Reverse (automatic reverse lock and
power trim and tilt models)
WARNING
EWM00190
When operating in reverse, go slowly. Do
not open the throttle more than half. Oth-
erwise the boat could become unstable,
which could result in loss of control and
an accident.
Tiller handle models
1. Place the throttle grip in the fully closed
position.
2. Move the gear shift lever quickly and
firmly from neutral to reverse.
Remote control models
1. Pull up the neutral interlock trigger (if
equipped) and move the remote control
lever quickly and firmly from neutral to
reverse.
ZMU01882
Operation
42
EMU27820
Stopping engine
Before stopping the engine, first let it cool off
for a few minutes at idle or low speed. Stop-
ping the engine immediately after operating
at high speed is not recommended.
EMU27852
Procedure
1. Turn the main switch to “ ” (off).
2. After stopping the engine, disconnect
the fuel line or close the fuel cock if there
is a fuel joint or a fuel cock on the boat.
3. Tighten the air vent screw on the fuel
tank cap (if equipped).
4. Remove the key if the boat will be left
unattended.
NOTE:
The engine can also be stopped by pulling
the lanyard and removing the clip from the
engine stop switch, then turning the main
switch to “ ” (off).
EMU27861
Trimming outboard motor
The trim angle of the outboard motor helps
determine the position of the bow of the boat
in the water. Correct trim angle will help im-
prove performance and fuel economy while
reducing strain on the engine. Correct trim
angle depends upon the combination of
boat, engine, and propeller. Correct trim is
also affected by variables such as the load in
the boat, sea conditions, and running speed.
WARNING
EWM00740
Excessive trim for the operating condi-
tions (either trim up or trim down) can
cause boat instability and can make
steering the boat more difficult. This in-
creases the possibility of an accident. If
the boat begins to feel unstable or is hard
to steer, slow down and/or readjust the
trim angle.
Operation
43
EMU27882
Adjusting trim angle
Power trim and tilt models
WARNING
EWM00751
●Be sure all people are clear of the out-
board motor when adjusting the tilt an-
gle, also be careful not to pinch any
body parts between the drive unit and
clamp bracket.
●Use caution when trying a trim position
for the first time. Increase speed gradu-
ally and watch for any signs of instabil-
ity or control problems. Improper trim
angle can cause loss of control.
●If equipped with a power trim and tilt
switch located on the bottom cowling,
use the switch only when the boat is at
a complete stop with the engine off. Do
not adjust the trim angle with this
switch while the boat is moving.
Adjust the outboard motor trim angle using
the power trim and tilt switch.
To raise the bow (trim-out), press the switch
“ ” (up).
To lower the bow (trim-in), press the switch
“ ” (down).
Make test runs with the trim set to different
angles to find the position that works best for
your boat and operating conditions.
EMU27911
Adjusting boat trim
When the boat is on plane, a bow-up attitude
results in less drag, greater stability and effi-
ciency. This is generally when the keel line of
the boat is up about 3 to 5 degrees. With the
bow up, the boat may have a greater tenden-
1. Trim operating angle
1
ZMU01983
1. Power trim and tilt switch
1. Power trim and tilt switch
UP
DN
ZMU01944
1
Operation
44
cy to steer to one side or the other. Compen-
sate for this as you steer. The trim tab can
also be adjusted to help offset this effect.
When the bow of the boat is down, it is easier
to accelerate from a standing start onto
plane.
Bow Up
Too much trim-out puts the bow of the boat
too high in the water. Performance and econ-
omy are decreased because the hull of the
boat is pushing the water and there is more
air drag. Excessive trim-out can also cause
the propeller to ventilate, which reduces per-
formance further, and the boat may “por-
poise” (hop in the water), which could throw
the operator and passengers overboard.
Bow Down
Too much trim-in causes the boat to “ ”plow
through the water, decreasing fuel economy
and making it hard to increase speed. Oper-
ating with excessive trim-in at higher speeds
also makes the boat unstable. Resistance at
the bow is greatly increased, heightening the
danger of bow steering and making opera-“ ”
tion difficult and dangerous.
NOTE:
Depending on the type of boat, the outboard
motor trim angle may have little effect on the
trim of the boat when operating.
EMU27933
Tilting up and down
If the engine will be stopped for some time or
if the boat is moored in shallows, the out-
board motor should be tilted up to protect the
propeller and casing from damage by colli-
sion with obstructions, and also to reduce
salt corrosion.
WARNING
EWM00220
Be sure all people are clear of the out-
board motor when tilting up and down,
also be careful not to pinch any body
parts between the drive unit and engine
bracket.
WARNING
EWM00250
Leaking fuel is a fire hazard. If there is a
fuel joint on the outboard motor, discon-
nect the fuel line or close the fuel cock if
the engine will be tilted for more than a
Operation
45
few minutes. Otherwise fuel may leak.
CAUTION:
ECM00241
●Before tilting the outboard motor, stop
the engine by following the procedure
on page 42. Never tilt the outboard mo-
tor while the engine is running. Severe
damage from overheating can result.
●Do not tilt up the engine by pushing the
tiller handle (if equipped) because this
could break the handle.
EMU28007
Procedure for tilting up (power trim
and tilt models / power tilt models)
1. Place the remote control lever / gear
shift lever in neutral.
2. Disconnect the fuel line from the out-
board motor or close the fuel cock.
3. Press the power trim and tilt switch /
power tilt switch “ ” (up) until the out-
board motor has tilted up completely.
4. Push the tilt support knob into the clamp
bracket or pull the tilt support lever to-
ward you to support the engine.
WARNING
EWM00260
After tilting the outboard motor, be sure
to support it with the tilt support knob or
tilt support lever. Otherwise the outboard
motor could fall back down suddenly if oil
in the power trim and tilt unit loses pres-
N
ZMU03196
UP
ZMU01954
ZMU01886
Operation
46
sure.
5. Models equipped with trim rods: Once
the outboard motor is supported with the
tilt support lever, press the power trim
and tilt switch / power tilt switch “ ”
(down) to retract the trim rods.
CAUTION:
ECM00250
Be sure to retract the trim rods complete-
ly during mooring. This protects the rods
from marine growth and corrosion which
could damage the power trim and tilt
mechanism.
EMU28055
Procedure for tilting down (power
trim and tilt models / power tilt
models)
1. Push the power trim and tilt switch / pow-
er tilt switch “ ” (up) until the outboard
motor is supported by the tilt rod and the
tilt support lever / tilt support knob be-
comes free.
2. Release the tilt support lever or pull out
the tilt support knob.
3. Push the power trim and tilt switch / pow-
er tilt switch “ ” (down) to lower the out-
board motor to the desired position.
EMU28060
Cruising in shallow water
The outboard motor can be tilted up partially
to allow operation in shallow water.
EMU28090
Power trim and tilt models / power tilt
models
The outboard motor can be tilted up partially
ZMU01884
ZMU01885
DN
ZMU01936
UP
DN
DN
ZMU01979
Operation
47
to allow operation in shallow water.
WARNING
EWM00660
●Place the gear shift in neutral before
setting up for shallow water cruising.
●Return the outboard motor to its normal
position as soon as the boat is back in
deeper water.
CAUTION:
ECM00260
Do not tilt the outboard motor up so that
the cooling water inlet on the lower unit is
above the surface of the water when set-
ting up for and cruising in shallow water.
Otherwise severe damage from overheat-
ing can result.
EMU28185
Procedure for power trim and tilt / power
tilt models
1. Place the remote control lever / gear
shift lever in neutral.
2. Slightly tilt the outboard motor up to the
desired position using the power trim
and tilt switch / power tilt switch.
3. To return the outboard motor to the nor-
mal running position, press the power
trim and tilt switch / power tilt switch and
slowly tilt the outboard motor down.
EMU28192
Cruising in other conditions
Cruising in salt water
After operating in salt water, flush the cooling
water passages with fresh water to prevent
them from becoming clogged with salt de-
posits.
NOTE:
For cooling system flushing instructions, see
page 49.
Cruising in turbid water
Yamaha strongly recommends that you use
the optional chromium-plated water pump kit
(not available for some models) if you use
the outboard motor in turbid or muddy water
conditions.
UP
ZMU01935
UP
DN
UP
ZMU01954
48
Maintenance
EMU31480
Specifications
NOTE:
“ ”(AL) stated in the specification data below
represents the numerical value for the alumi-
num propeller installed.
Likewise, (SUS)“ ” represents the value for
stainless steel propeller installed and “ ”(PL)
for plastic propeller installed.
EMU28218
Dimension:
Overall length:
906 mm (35.7 in)
Overall width:
568 mm (22.4 in)
Overall height L:
1714 mm (67.5 in)
Transom height L:
493 mm (19.4 in)
Weight (without propeller) L:
238.0 kg (525 lb)
Performance:
Full throttle operating range:
VZ200TR 5000 6000 r/min–
VZ225TR 5000 6000 r/min–
VZ250TR 5000 6000 r/min–
VZ300TR 4500 6000 r/min–
Maximum output:
VZ200TR 147.1 kW@5500 r/min
(200 HP@5500 r/min)
VZ225TR 165.5 kW@5500 r/min
(225 HP@5500 r/min)
VZ250TR 183.9 kW@5500 r/min
(250 HP@5500 r/min)
VZ300TR 220.7 kW@5250 r/min
(300 HP@5250 r/min)
Idling speed (in neutral):
VZ200TR 700 ±30 r/min
VZ225TR 700 ±30 r/min
VZ250TR 700 ±30 r/min
VZ300TR 730 ±
30 r/min
Engine:
Type:
2-stroke V
Displacement:
3342.0 cm3
(203.93 cu.in)
Bore × stroke:
93.0 ×
82.0 mm (3.66 × 3.23 in)
Ignition system:
TCI
Spark plug (NGK):
BKR6EKU
Spark plug gap:
1.5 1.6 mm (0.059 0.063 in)– –
Control system:
Remote control
Starting system:
Electric
Starting carburetion system:
Electronic fuel injection
Min. cold cranking amps (CCA/SAE):
512.0 A
Min. marine cranking amps (MCA/ABYC):
675.0 A
Min. reserve capacity (RC/SAE):
182 minutes
Alternator output for battery DC:
50.0 A
Drive unit:
Gear positions:
Forward-neutral-reverse
Gear ratio:
VZ200TR 1.81 (29/16)
VZ225TR 1.75 (28/16)
VZ250TR 1.75 (28/16)
VZ300TR 1.75 (28/16)
Trim and tilt system:
Power trim and tilt
Propeller mark:
T
Fuel and oil:
Maintenance
49
Recommended fuel:
Regular unleaded gasoline
Min. pump octane:
86
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
Lubrication:
Oil injection
Engine oil tank capacity:
1.2 L (1.27 US qt) (1.06 Imp.qt)
Remote oil tank capacity:
10.5 L (11.10 US qt) (9.24 Imp.qt)
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
1050.0 cm3 (35.50 US oz) (37.03
Imp.oz)
Tightening torque for engine:
Spark plug:
25.0 Nm (18.4 ft-lb) (2.55 kgf-m)
Propeller nut:
55.0 Nm (40.6 ft-lb) (5.61 kgf-m)
EMU28222
Transporting and storing
outboard motor
WARNING
EWM00690
●Leaking fuel is a fire hazard. When
transporting and storing the outboard
motor, close the air vent screw and fuel
cock to prevent fuel from leaking.
●USE CARE when transporting fuel tank,
whether in a boat or car.
●DO NOT fill fuel container to maximum
capacity. Gasoline will expand consid-
erably as it warms up and can build up
pressure in the fuel container. This can
cause fuel leakage and a potential fire
hazard.
WARNING
EWM00700
Never get under the lower unit while it is
tilted, even if a motor support bar is used.
Severe injury could occur if the outboard
motor accidentally falls.
CAUTION:
ECM00660
Do not use the tilt support lever or knob
when trailering the boat. The outboard
motor could shake loose from the tilt sup-
port and fall. If the motor cannot be trail-
ered in the normal running position, use
an additional support device to secure it
in the tilt position.
The outboard motor should be trailered and
stored in the normal running position. If there
is insufficient road clearance in this position,
then trailer the outboard motor in the tilt po-
sition using a motor support device such as
a transom saver bar. Consult your Yamaha
dealer for further details.
EMU30250
Storing outboard motor
When storing your Yamaha outboard motor
for prolonged periods of time (2 months or
longer), several important procedures must
be performed to prevent excessive damage.
This is especially important for your oil injec-
tion equipped outboard motor due to the lean
oil ratios used at idle prior to shutting the en-
gine off for the season. It is advisable to have
your outboard motor serviced by an autho-
rized Yamaha dealer prior to storage. How-
ever, you, the owner, with a minimum of
tools, can perform the following procedures.
CAUTION:
ECM01390
Do not use any chemical goods contain-
Maintenance
50
ing Silicon, Phosphorus, or Lead. Con-
sult your Yamaha dealer for details on the
use of chemical goods for storage.
EMU28303
Procedure
EMU31920
Conditioning and stabilizing fuel
Fill the fuel tank with fresh fuel and add one
ounce of Yamaha Fuel Conditioner and Sta-“
bilizer” (Part No. LUB-FUELC-12-00) to each
gallon of fuel.
NOTE:
The use of Yamaha Fuel Conditioner and“
Stabilizer” eliminates the need to drain the
fuel system. Consult your Yamaha dealer or
other qualified mechanic if the fuel system is
to be drained instead.
EMU31900
Engine anti-rust measure
CAUTION:
ECM01530
Do not perform this procedure while the
engine is running. The water pump may
be damaged and severe damage from
overheating can result.
NOTE:
This procedure is performed while the top
cowling is removed.
1. Remove the spark plug(s).
2. Pour a teaspoonful of clean engine oil
into each cylinder.
3. Crank the engine several times manual-
ly.
4. Reinstall the spark plug(s).
EMU31390
Washing the outboard motor
NOTE:
This procedure is performed while the top
cowling is installed.
1. Wash the outboard motor body using
fresh water.
2. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
EMU28410
Lubrication (oil injection models)
1. Grease the spark plug threads and in-
stall the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 56.
2. Fill the oil tanks. This prevents the for-
mation of condensation. For models with
a remote oil tank, it may be necessary to
manually override the control unit to
completely fill the engine oil tank.
3. Change the gear oil. For instructions,
see page 62. Inspect the oil for the pres-
ence of water which indicates a leaky
seal. Seal replacement should be per-
formed by an authorized Yamaha dealer
prior to use.
4. Grease all grease fittings. For further de-
tails, see page 56.
EMU30261
Cleaning and anticorrosion
measures
1. Wash down the exterior of the outboard
motor with fresh water and dry off com-
pletely.
2. Spray the outboard motor exterior with
“ ”Yamaha Silicone Protectant (Part No.
LUB-SILCNE-13-00).
CAUTION:
ECM01401
Do not spray when the engine is running.
Also, do not spray near the silencer or
into the engine. Otherwise the engine
could be damaged.
3. Wax the cowling with a non-abrasive
wax such as “Yamaha Silicone Wax”
(Part No. ACC-11000-15-02).
Maintenance
51
EMU28430
Battery care
WARNING
EWM00330
Battery electrolytic fluid is dangerous; it
contains sulfuric acid and therefore is
poisonous and highly caustic.
Always follow these preventive mea-
sures:
●Avoid bodily contact with electrolytic
fluid as it can cause severe burns or
permanent eye injury.
●Wear protective eye gear when han-
dling or working near batteries.
Antidote (EXTERNAL):
●SKIN - Flush with water.
●EYES - Flush with water for 15 minutes
and get immediate medical attention.
Antidote (INTERNAL):
●Drink large quantities of water or milk
followed by milk of magnesia, beaten
egg, or vegetable oil. Get immediate
medical attention.
Batteries also generate explosive hydro-
gen gas; therefore, you should always
follow these preventive measures:
●Charge batteries in a well-ventilated ar-
ea.
●Keep batteries away from fire, sparks,
or open flames (for example: welding
equipment, lighted cigarettes, and so
on.)
●DO NOT SMOKE when charging or han-
dling batteries.
KEEP BATTERIES AND ELECTROLYTIC
FLUID OUT OF REACH OF CHILDREN.
Batteries vary among manufacturers. There-
fore the following procedures may not al-
ways apply. Consult your battery
manufacturer s instructions.’
Procedure
1. Disconnect and remove the battery from
the boat. Always disconnect the black
negative cable first to prevent the risk of
shorting.
2. Clean the battery casing and terminals.
Fill each cell to the upper level with dis-
tilled water.
3. Store the battery on a level surface in a
cool, dry, well-ventilated place out of di-
rect sunlight.
4. Once a month, check the specific gravity
of the electrolyte and recharge as re-
quired to prolong battery life.
EMU28442
Flushing power unit
Perform this procedure right after operation
for the most thorough flushing.
CAUTION:
ECM01530
Do not perform this procedure while the
engine is running. The water pump may
be damaged and severe damage from
overheating can result.
1. After shutting off the engine, unscrew
the garden hose connector from the fit-
ting on the bottom cowling.
Maintenance
52
2. Screw the garden hose adapter onto a
garden hose, which is connected to a
fresh water supply, and then connect it
to the garden hose connector.
3. With the engine off, turn on the water tap
and let the water flush through the cool-
ing passages for about 15 minutes. Turn
off the water and disconnect the garden
hose adapter from the garden hose con-
nector.
4. Reinstall the garden hose connector
onto the fitting on the bottom cowling.
Tighten the connector securely.
CAUTION:
ECM00540
Do not leave the garden hose connector
loose on the bottom cowling fitting or let
the hose hang free during normal opera-
tion. Water will leak out of the connector
instead of cooling the engine, which can
cause serious overheating. Be sure the
connector is tightened securely on the fit-
ting after flushing the engine.
NOTE:
●When flushing the engine with the boat in
the water, tilting up the outboard motor un-
til it is completely out of the water will
achieve better results.
●For cooling system flushing instructions,
see page 49.
EMU28450
Cleaning the outboard motor
After use, wash the exterior of the outboard
motor with fresh water. Flush the cooling
system with fresh water.
NOTE:
For cooling system flushing instructions, see
page 49.
EMU28460
Checking painted surface of motor
Check the motor for scratches, nicks, or flak-
ing paint. Areas with damaged paint are
more likely to corrode. If necessary, clean
and paint the areas. A touch-up paint is avail-
able from your Yamaha dealer.
1. Fitting
2. Garden hose connector
3. Garden hose adapter
1
23
ZMU01984
ZMU01985
Maintenance
53
EMU28486
Periodic maintenance
WARNING
EWM01070
Be sure to turn off the engine when you
perform maintenance unless otherwise
specified. If you or the owner is not famil-
iar with machine servicing, this work
should be done by your Yamaha dealer or
other qualified mechanic.
Maintenance, replacement, or repair of
the emission control devices and sys-
tems may be performed by any marine
engine repair establishment or individual.
All warranty repairs, however, including
those to the emission control system,
must be performed by an authorized
Yamaha marine dealership.
A service manual is available for purchase
through your Yamaha dealer for owners who
have the mechanical skills, tools, and other
equipment necessary to perform mainte-
nance not covered by this owner s manual.’
EMU28510
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of the same
type and of equivalent strength and materi-
als. Any part of inferior quality may malfunc-
tion, and the resulting loss of control could
endanger the operator and passengers.
Yamaha genuine parts and accessories are
available from your Yamaha dealer.
Maintenance
54
EMU28522
Maintenance chart
Frequency of maintenance operations may be adjusted according to the operating condi-
tions, but the following table gives general guidelines. Refer to the sections in this chapter for
explanations of each owner-specific action.
NOTE:
When operating in salt water, turbid or muddy water, the engine should be flushed with clean
water after each use.
The “ ” symbol indicates the check-ups which you may carry out yourself.
The “ ” symbol indicates work to be carried out by your Yamaha dealer.
Item Actions
Initial Every
10 hours
(1 month)
50 hours
(3
months)
100
hours (6
months)
200
hours (1
year)
Anode(s) (external) Inspection / replace-
ment
Anode(s) (internal) Inspection / replace-
ment
Battery Inspection / charging
Cooling water pas-
sages Cleaning
Cowling clamp Inspection
Fuel lter (can be dis-fi
assembled)
Inspection / replace-
ment
Fuel system Inspection
Gear oil Change
Greasing points Greasing
Idling speed Inspection
PCV (Pressure Con-
trol Valve) Inspection
Power trim and tilt unit Inspection
Propeller and cotter pin Inspection / replace-
ment
Shift link / shift cable Inspection / adjustment
Thermostat Inspection / replace-
ment
Throttle link / throttle
cable / throttle pick-up
timing
Inspection / adjustment
Throttle position sen-
sor Inspection / adjustment
Maintenance
55
EMU28874
Maintenance chart (additional)
Water pump Inspection / replace-
ment
High pressure fuel
pump drive belt
Inspection / replace-
ment
High pressure fuel
pump oil level Inspection / llingfi
Oil pump Inspection / adjustment
Oil tank water drain Inspection / cleaning
Spark plug(s) Cleaning / adjustment /
replacement
Item Actions
Every
500 hours (2.5 years) 1000 hours (5 years)
High pressure fuel
pump drive belt Replacement
Fuel lter (vapor sepa-fi
rator tank) Replacement
Item Actions
Initial Every
10 hours
(1 month)
50 hours
(3
months)
100
hours (6
months)
200
hours (1
year)
Maintenance
56
EMU28931
Greasing
Yamaha marine grease (Water resistant grease)
VZ200, VZ225, VZ250, VZ300
EMU28952
Cleaning and adjusting spark plug
WARNING
EWM00560
When removing or installing a spark plug,
be careful not to damage the insulator. A
damaged insulator could allow external
sparks, which could lead to explosion or
fire.
The spark plug is an important engine com-
ponent and is easy to inspect. The condition
of the spark plug can indicate something
about the condition of the engine. For exam-
ZMU01986
Maintenance
57
ple, if the center electrode porcelain is very
white, this could indicate an intake air leak or
carburetion problem in that cylinder. Do not
attempt to diagnose any problems yourself.
Instead, take the outboard motor to a
Yamaha dealer. You should periodically re-
move and inspect the spark plug because
heat and deposits will cause the spark plug
to slowly break down and erode. If electrode
erosion becomes excessive, or if carbon and
other deposits are excessive, you should re-
place the spark plug with another of the cor-
rect type.
Before fitting the spark plug, measure the
electrode gap with a wire thickness gauge;
adjust the gap to specification if necessary.
When fitting the plug, always clean the gas-
ket surface and use a new gasket. Wipe off
any dirt from the threads and screw in the
spark plug to the correct torque.
NOTE:
If a torque-wrench is not available when you
are fitting a spark plug, a good estimate of
the correct torque is 1/4 to 1/2 a turn past fin-
ger-tight. Have the spark plug adjusted to the
correct torque as soon as possible with a
torque-wrench.
EMU28962
Checking fuel system
WARNING
EWM00060
Gasoline and its vapors are highly flam-
mable and explosive. Keep away from
sparks, cigarettes, flames, or other
sources of ignition.
WARNING
EWM00910
Leaking fuel can result in fire or explo-
sion.
●Check for fuel leakage regularly.
●If any fuel leakage is found, the fuel
system must be repaired by a qualified
mechanic. Improper repairs can make
the outboard unsafe to operate.
Check the fuel lines for leaks, crack, or mal-
function. If a problem is found, your Yamaha
dealer or other qualified mechanic should re-
pair it immediately.
Standard spark plug:
BKR6EKU
1. Spark plug gap
2. Spark plug I.D. mark (NGK)
Spark plug gap:
1.5 1.6 mm (0.059 0.063 in)– –
1
1
2
ZMU01892
Spark plug torque:
25.0 Nm (18.4 ft-lb) (2.55 kgf-m)
Maintenance
58
Checkpoints
●Fuel system parts leakage
●Fuel line joint leakage
●Fuel line cracks or other damage
●Fuel connector leakage
EMU29041
Inspecting idling speed
WARNING
EWM00451
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands, hair, and clothes away
from the flywheel and other rotating
parts while the engine is running.
CAUTION:
ECM00490
This procedure must be performed while
the outboard motor is in the water. A
flushing attachment or test tank can be
used.
A diagnostic tachometer should be used for
this procedure. Results may vary depending
on whether testing is conducted with the
flushing attachment, in a test tank, or with the
outboard motor in the water.
1. Start the engine and allow it to warm up
fully in neutral until it is running smooth-
ly.
NOTE:
Correct idling speed inspection is only possi-
ble if the engine is fully warmed up. If not
warmed up fully, the idle speed will measure
higher than normal. If you have difficulty ver-
ifying the idle speed, or the idle speed re-
quires adjustment, consult a Yamaha dealer
or other qualified mechanic.
2. Verify whether the idle speed is set to
specification. For idle speed specifica-
tions, see page 48.
ZMU01853
ZMU01955
Maintenance
59
EMU29050
Checking water in engine oil tank
Oil injection models
There is a water trap at the bottom of the en-
gine oil tank. If water or foreign matter is vis-
ible in this trap, consult your Yamaha dealer.
EMU29112
Checking wiring and connectors
●Check that each grounding wire is properly
secured.
●Check that each connector is engaged se-
curely.
EMU29120
Exhaust leakage
Start the engine and check that no exhaust
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
EMU29130
Water leakage
Start the engine and check that no water
leaks from the joints between the exhaust
cover, cylinder head, and body cylinder.
EMU29153
Checking power trim and tilt system
WARNING
EWM00430
●Never get under the lower unit while it
is tilted, even when the tilt support lever
is locked. Severe injury could occur if
the outboard motor accidentally falls.
●Make sure no one is under the outboard
motor before performing this test.
1. Check the power trim and tilt unit for any
sign of oil leaks.
1. Water trap
2. Engine oil tank
2
1
ZMU01895
Maintenance
60
2. Operate each of the power trim and tilt
switches on the remote control and en-
gine bottom cowling (if equipped) to
check that all switches work.
3. Tilt the outboard motor up and check
that the tilt rod and trim rods are extend-
ed completely.
4. Use the tilt support lever to lock the mo-
tor in the up position. Operate the tilt
down switch briefly so the motor is sup-
ported by the tilt support lever.
5. Check that the tilt rod and trim rods are
free of corrosion or other flaws.
6. Activate the tilt-down switch until the trim
rods have retracted completely into the
cylinders.
7. Activate the trim-up switch until the tilt
rod is fully extended. Unlock the tilt sup-
port lever.
8. Tilt the outboard motor down. Check
that the tilt rod and trim rods operate
smoothly.
NOTE:
Consult your Yamaha dealer if any operation
is abnormal.
EMU29171
Checking propeller
WARNING
EWM00321
You could be seriously injured if the en-
gine accidentally starts when you are
near the propeller.
●Before inspecting, removing, or install-
ing the propeller, remove the spark
plug caps from the spark plugs. Also,
place the shift control in neutral, turn
the main switch to “ ” (off) and re-
move the key, and remove the lanyard
from the engine stop switch. Turn off
the battery cut-off switch if your boat
has one.
●Do not use your hand to hold the pro-
peller when loosening or tightening the
propeller nut. Put a wood block be-
tween the anti-cavitation plate and the
propeller to prevent the propeller from
turning.
1. Tilt rod
2. Tilt support lever
3. Trim rods
1
ZMU01940
3
2
ZMU01941
ZMU01896
Maintenance
61
Checkpoints
●Check each of the propeller blades for
wear, erosion from cavitation or ventila-
tion, or other damage.
●Check the propeller shaft for damage.
●Check the splines / shear pin for wear or
damage.
●Check for fish line tangled around the pro-
peller shaft.
●Check the propeller shaft oil seal for dam-
age.
NOTE:
If the shear pin equipped: it is designed to
break if the propeller hits a hard underwater
obstacle to help protect the propeller and
drive mechanism. The propeller will then
spin freely on the shaft. If this happens, the
shear pin must be replaced.
EMU30660
Removing the propeller
EMU29194
Spline models
1. Straighten the cotter pin and pull it out
using a pair of pliers.
2. Remove the propeller nut, washer, and
spacer (if equipped).
3. Remove the propeller and thrust wash-
er.
EMU30670
Installing the Propeller
EMU29231
Spline models
CAUTION:
ECM00340
●Be sure to install the thrust washer be-
fore installing the propeller, otherwise
the lower case and propeller boss
could be damaged.
●Be sure to use a new cotter pin and
bend the ends over securely. Otherwise
the propeller could come off during op-
eration and be lost.
1. Apply Yamaha marine grease or a cor-
ZMU01897
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
1
65
432
ZMU01898
Maintenance
62
rosion resistant grease to the propeller
shaft.
2. Install the spacer (if equipped), thrust
washer, and propeller on the propeller
shaft.
3. Install the spacer (if equipped) and the
washer. Tighten the propeller nut to the
specified torque.
4. Align the propeller nut with the propeller
shaft hole. Insert a new cotter pin in the
hole and bend the cotter pin ends.
NOTE:
If the propeller nut does not align with the
propeller shaft hole after tightening to the
specified torque, tighten the nut further to
align it with the hole.
EMU29291
Changing gear oil
WARNING
EWM00800
●Be sure the outboard motor is securely
fastened to the transom or a stable
stand. You could be severely injured if
the outboard motor falls on you.
●Never get under the lower unit while it
is tilted, even when the tilt support lever
or knob is locked. Severe injury could
occur if the outboard motor accidental-
ly falls.
1. Tilt the outboard motor so that the gear
oil drain screw is at the lowest point pos-
sible.
2. Place a suitable container under the
gear case.
3. Remove the cooling water inlet covers
on both sides of the gear case. Be care-
ful not to lose the bolt and nut.
4. Remove the gear oil drain screw.
NOTE:
The gear oil drain screw is magnetic. Re-
move all metal particles from the screw be-
fore installing it.
5. Remove the oil level plug to allow the oil
to drain completely.
CAUTION:
ECM00710
Inspect the used oil after it has been
drained. If the oil is milky, water is getting
into the gear case which can cause gear
damage. Consult a Yamaha dealer for re-
pair of the lower unit seals.
NOTE:
For disposal of used oil consult your Yamaha
dealer.
6. With the outboard motor in a vertical po-
sition, and using a flexible or pressur-
ZMU02063
1. Gear oil drain screw
2. Oil level plug
ZMU02096
1
2
Maintenance
63
ized filling device, inject the gear oil into
the gear oil drain screw hole.
7. When the oil begins to flow out of the oil
level plug hole, insert and tighten the oil
level plug.
8. Insert and tighten the gear oil drain
screw.
9. Securely install the cooling water inlet
covers on both sides of the gear case
using the bolt and nut removed earlier.
EMU29312
Inspecting and replacing anode(s)
Yamaha outboard motors are protected from
corrosion by sacrificial anodes. Inspect the
external anodes periodically. Remove scales
from the surfaces of the anodes. Consult a
Yamaha dealer for replacement of external
anodes.
CAUTION:
ECM00720
Do not paint anodes, as this would render
them ineffective.
NOTE:
Inspect ground leads attached to external
anodes on equipped models. Consult a
Yamaha dealer for inspection and replace-
ment of internal anodes attached to the pow-
er unit.
EMU29320
Checking battery (for electric start
models)
WARNING
EWM00330
Battery electrolytic fluid is dangerous; it
contains sulfuric acid and therefore is
poisonous and highly caustic.
Always follow these preventive mea-
sures:
●Avoid bodily contact with electrolytic
fluid as it can cause severe burns or
permanent eye injury.
●Wear protective eye gear when han-
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
1050.0 cm3 (35.50 US oz) (37.03
Imp.oz)
ZMU02364
ZMU01901
ZMU01902
Maintenance
64
dling or working near batteries.
Antidote (EXTERNAL):
●SKIN - Flush with water.
●EYES - Flush with water for 15 minutes
and get immediate medical attention.
Antidote (INTERNAL):
●Drink large quantities of water or milk
followed by milk of magnesia, beaten
egg, or vegetable oil. Get immediate
medical attention.
Batteries also generate explosive hydro-
gen gas; therefore, you should always
follow these preventive measures:
●Charge batteries in a well-ventilated ar-
ea.
●Keep batteries away from fire, sparks,
or open flames (for example: welding
equipment, lighted cigarettes, and so
on.)
●DO NOT SMOKE when charging or han-
dling batteries.
KEEP BATTERIES AND ELECTROLYTIC
FLUID OUT OF REACH OF CHILDREN.
CAUTION:
ECM00360
●A poorly maintained battery will quickly
deteriorate.
●Ordinary tap water contains minerals
harmful to a battery, and should not be
used for topping up.
1. Check the electrolyte level at least once
a month. Fill to the manufacturer s rec-’
ommended level when necessary. Top
up only with distilled water (or pure de-
ionized water suitable to use in batter-
ies).
2. Always keep the battery in a good state
of charge. Installing a voltmeter will help
you monitor your battery. If you will not
use the boat for a month or more, re-
move the battery from the boat and store
it in a cool, dark place. Completely re-
charge the battery before using it.
3. If the battery will be stored for longer
than a month, check the specific gravity
of the fluid at least once a month and re-
charge the battery when it is low.
NOTE:
Consult a Yamaha dealer when charging or
re-charging batteries.
EMU29362
Connecting the Battery
WARNING
EWM00570
Mount the battery holder securely in a
dry, well-ventilated, vibration-free loca-
tion in the boat. Install a fully charged bat-
tery in the holder.
CAUTION:
ECM01121
●Make sure the main switch (on applica-
ble models) is “ ” (off) before work-
ing on the battery.
●Reversal of the battery cables will dam-
age the electrical parts.
●Connect the red battery cable first
Maintenance
65
when installing the battery and discon-
nect the black battery cable first when
removing it. Otherwise, the electrical
parts can be damaged.
●The electrical contacts of the battery
and cables must be clean and properly
connected, or the battery will not start
the engine.
Connect the RED lead to the POSITIVE (+)
terminal first. Then connect the BLACK lead
to the NEGATIVE (-) terminal.
Connecting an accessory battery (option)
1. Remove the accessory battery coupler
cover from the outboard motor.
2. Connect the accessory battery coupler
to the coupler of the accessory battery
lead (option). Use a connecting cable
between the (-) terminals of the starting
battery and accessory battery. See the
illustrations of the wiring connections.
This cable must be made from wire
thicker than the starting battery cable.
WARNING
EWM00600
Use of smaller wire could lead to a fire.
NOTE:
If a battery selector switch is desired, consult
your Yamaha dealer about correct wiring.
EMU29370
Disconnecting the battery
Disconnect the BLACK cable from the NEG-
ATIVE (-) terminal first. Then disconnect the
RED cable from the POSITIVE (+) terminal.
EMU29390
Checking top cowling
Check the fitting of the top cowling by push-
ing it with both hands. If it is loose have it re-
paired by your Yamaha dealer.
1. Red cable
2. Black cable
3. Battery
ZMU04980
1. Battery for accessories
2. Battery for starting
3. Large black lead
4. Large red lead for starting battery
5. Negative connecting cable
6. Power for accessories
7. Small red lead for accessory battery charg-
ing (optional part)
7
ZMU01942
435
1
6
2
Maintenance
66
EMU29400
Coating the boat bottom
A clean hull improves boat performance. The
boat bottom should be kept as clean of ma-
rine growth as possible. If necessary, the
boat bottom can be coated with an anti-foul-
ing paint approved for your area to inhibit
marine growth.
Do not use anti-fouling paint which includes
copper or graphite. These paints can cause
more rapid engine corrosion.
ZMU04680
ZMU01943
67
Trouble Recovery
EMU29424
Troubleshooting
A problem in the fuel, compression, or igni-
tion systems can cause poor starting, loss of
power, or other problems. This section de-
scribes basic checks and possible remedies,
and covers all Yamaha outboard motors.
Therefore some items may not apply to your
model.
If your outboard motor requires repair, bring
it to your Yamaha dealer.
If the engine trouble warning indicator is
flashing, consult your Yamaha dealer.
Starter will not operate.
Q. Is battery capacity weak or low?
A. Check battery condition. Use battery of
recommended capacity.
Q. Are battery connections loose or corrod-
ed?
A. Tighten battery cables and clean battery
terminals.
Q. Is fuse for electric start relay or electric cir-
cuit blown?
A. Check for cause of electric overload and
repair. Replace fuse with one of correct am-
perage.
Q. Are starter components faulty?
A. Have serviced by a Yamaha dealer.
Q. Is shift lever in gear?
A. Shift to neutral.
Engine will not start (starter operates).
Q. Is fuel tank empty?
A. Fill tank with clean, fresh fuel.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Is starting procedure incorrect?
A. See page 39.
Q. Has fuel pump malfunctioned?
A. Have serviced by a Yamaha dealer.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Are spark plug cap(s) fitted incorrectly?
A. Check and re-fit cap(s).
Q. Is ignition wiring damaged or poorly con-
nected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or bro-
ken wires.
Q. Are ignition parts faulty?
A. Have serviced by a Yamaha dealer.
Q. Is engine stop switch lanyard not at-
tached?
A. Attach lanyard.
Q. Are engine inner parts damaged?
A. Have serviced by a Yamaha dealer.
Engine idles irregularly or stalls.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Trouble Recovery
68
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Have ignition parts failed?
A. Have serviced by a Yamaha dealer.
Q. Has warning system activated?
A. Find and correct cause of warning.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly con-
nected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or bro-
ken wires.
Q. Is specified engine oil not being used?
A. Check and replace oil as specified.
Q. Is thermostat faulty or clogged?
A. Have serviced by a Yamaha dealer.
Q. Are carburetor adjustments incorrect?
A. Have serviced by a Yamaha dealer.
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
Q. Is air vent screw on fuel tank closed?
A. Open air vent screw.
Q. Is choke knob pulled out?
A. Return to home position.
Q. Is motor angle too high?
A. Return to normal operating position.
Q. Is carburetor clogged?
A. Have serviced by a Yamaha dealer.
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is throttle valve adjustment incorrect?
A. Have serviced by a Yamaha dealer.
Q. Is battery cable disconnected?
A. Connect securely.
Warning buzzer sounds or indicator
lights.
Q. Is cooling system clogged?
A. Check water intake for restriction.
Q. Is engine oil level low?
A. Fill oil tank with specified engine oil.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with rec-
ommended type.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is engine oil contaminated or deteriorat-
ed?
A. Replace oil with fresh, specified type.
Q. Is oil filter clogged?
A. Have serviced by a Yamaha dealer.
Q. Has oil feed/injection pump malfunc-
tioned?
Trouble Recovery
69
A. Have serviced by a Yamaha dealer.
Q. Is load on boat improperly distributed?
A. Distribute load to place boat on an even
plane.
Q. Is water pump or thermostat faulty?
A. Have serviced by a Yamaha dealer.
Q. Is there excess water in fuel filter cup?
A. Drain filter cup.
Engine power loss.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller pitch or diameter incorrect?
A. Install correct propeller to operate out-
board at its recommended speed (r/min)
range.
Q. Is trim angle incorrect?
A. Adjust trim angle to achieve most efficient
operation.
Q. Is motor mounted at incorrect height on
transom?
A. Have motor adjusted to proper transom
height.
Q. Has warning system activated?
A. Find and correct cause of warning.
Q. Is boat bottom fouled with marine growth?
A. Clean boat bottom.
Q. Are spark plug(s) fouled or of incorrect
type?
A. Inspect spark plug(s). Clean or replace
with recommended type.
Q. Are weeds or other foreign matter tangled
on gear housing?
A. Remove foreign matter and clean lower
unit.
Q. Is fuel system obstructed?
A. Check for pinched or kinked fuel line or
other obstructions in fuel system.
Q. Is fuel filter clogged?
A. Clean or replace filter.
Q. Is fuel contaminated or stale?
A. Fill tank with clean, fresh fuel.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly con-
nected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or bro-
ken wires.
Q. Have electrical parts failed?
A. Have serviced by a Yamaha dealer.
Q. Is specified fuel not being used?
A. Replace fuel with specified type.
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is thermostat faulty or clogged?
A. Have serviced by a Yamaha dealer.
Q. Is air vent screw closed?
A. Open the air vent screw.
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
Trouble Recovery
70
Q. Is fuel joint connection incorrect?
A. Connect correctly.
Q. Is heat range of spark plug incorrect?
A. Inspect spark plug and replace it with rec-
ommended type.
Q. Is high pressure fuel pump drive belt bro-
ken?
A. Have serviced by a Yamaha dealer.
Q. Is engine not responding properly to shift
lever position?
A. Have serviced by a Yamaha dealer.
Engine vibrates excessively.
Q. Is propeller damaged?
A. Have propeller repaired or replaced.
Q. Is propeller shaft damaged?
A. Have serviced by a Yamaha dealer.
Q. Are weeds or other foreign matter tangled
on propeller?
A. Remove and clean propeller.
Q. Is motor mounting bolt loose?
A. Tighten bolt.
Q. Is steering pivot loose or damaged?
A. Tighten or have serviced by a Yamaha
dealer.
EMU29433
Temporary action in
emergency
EMU29440
Impact damage
WARNING
EWM00870
The outboard motor can be seriously
damaged by a collision while operating or
trailering. Damage could make the out-
board motor unsafe to operate.
If the outboard motor hits an object in the wa-
ter, follow the procedure below.
1. Stop the engine immediately.
2. Inspect the control system and all com-
ponents for damage. Also inspect the
boat for damage.
3. Whether damage is found or not, return
to the nearest harbor slowly and careful-
ly.
4. Have a Yamaha dealer inspect the out-
board motor before operating it again.
EMU29471
Replacing fuse
If a fuse has blown, remove the electrical
cover, open the fuse holder and remove the
fuse with a fuse puller (if equipped). Replace
it with a spare one of the proper amperage.
WARNING
EWM00630
Be sure to use the specified fuse. An in-
correct fuse or a piece of wire could allow
excessive current flow. This could cause
electric system damage and a fire hazard.
NOTE:
Consult your Yamaha dealer if the new fuse
immediately blows again.
Trouble Recovery
71
EMU29522
Power trim and tilt / power tilt will not
operate
If the engine cannot be tilted up or down with
the power trim and tilt / the power tilt because
of a discharged battery or a failure with the
power trim and tilt unit / the power tilt unit, the
engine can be tilted manually.
1. Loosen the manual valve screw by turn-
ing it counterclockwise until it stops.
2. Put the engine in the desired position,
then tighten the manual valve screw by
turning it clockwise.
EMU31780
Water separator warning indicator
blinks while cruising
WARNING
EWM01500
Gasoline is highly flammable, and its va-
pors are flammable and explosive.
●Do not perform this procedure on a hot
or running engine. Allow the engine to
cool.
●There will be fuel in the fuel filter. Keep
away from sparks, cigarettes, flames or
other sources of ignition.
●This procedure will allow some fuel to
spill. Catch fuel in a rag. Wipe up any
spilled fuel immediately.
●The fuel filter must be reassembled
carefully with the O-ring, filter cup, and
hoses in place. Improper assembly or
replacement could result in a fuel leak,
which could result in a fire or explosion
hazard.
If the water separator warning indicator on
the tachometer blinks, perform the following
procedure.
1. Electrical cover
2. Fuse holder
3. Fuse (20A, 30A, 100A)
4. Spare fuse (20A, 30A, 100A)
5. Fuse puller
1. Fuse (20A, 30A, 100A)
2. Fuse puller
35
4
1
3
4
3
2
ZMU01903
12
ZMU01904
1. Manual valve screw
ZMU02403
1
Produkt Specifikationer
Mærke: | Yamaha |
Kategori: | Påhængsmotor |
Model: | VZ300 |
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