Page 1
OWNER’S MANUAL
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Read this manual carefully before operating this
outboard motor.
150F
200F
L200F
64C-28199-7E-E0
Page 2
EMU25052
Read this manual carefully before operating this outboard motor. Keep this
manual onboard in a waterproof bag when boating. This manual should stay
with the outboard motor if it is sold.
Page 3
Important manual information
T
T
EMU25105
To the owner
Thank you for choosing a Yamaha outboard
motor. This Owner’s Manual contains information needed for proper operation, maintenance and care. A thorough understanding
of these simple instructions will help you obtain 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.
: This is the safety alert symbol. It is
used to alert you to potential personal injury
hazards. Obey all safety messages that follow this symbol to avoid possible injury or
death.
EWM00781
WARNING
A WARNING indicates a hazardous situation which, if not avoided, could result in
death or serious injury.
ECM00701
NOTICE
A NOTICE indicates special precautions
that must be taken to avoid damage to the
outboard motor or other property.
there is any question concerning this manual, please consult your Yamaha dealer.
To ensure long product life, Yamaha recommends that you use the product and perform
the specified periodic inspections and maintenance by correctly following the instructions in the owner’s manual. Any damage
resulting from neglect of these instructions is
not covered by warranty.
Some countries have laws or regulations restricting users from taking the product out of
the country where it was purchased, and it
may be impossible to register the product in
the destination country. Additionally, the
warranty may not apply in certain regions.
When planning to take the product to another
country, consult the dealer where the product was purchased for further information.
If the product was purchased used, please
consult your closest dealer for customer reregistration, and to be eligible for the specified services.
IP:
The 150FETO, 200FETO, L200FETO and
the standard accessories are used as a base
for the explanations and illustrations in this
manual. Therefore some items may not apply to every model.
EMU25121
IP:
A TIP 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 product information available at the time of printing, there may be minor discrepancies
between your machine and this manual. If
150F, 200F, L200F
OWNER’S MANUAL
©2008 by Yamaha Motor Co., Ltd.
1st Edition, April 2008
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
Page 4
Table of contents
Safety information............................. 1
Outboard motor safety .................... 1
Propeller............................................ 1
Rotating parts.................................... 1
Hot parts ........................................... 1
Electric shock.................................... 1
Power trim and tilt .............................1
Engine shut-off cord (lanyard)........... 1
Gasoline............................................ 1
Gasoline exposure and spills ............ 2
Carbon monoxide.............................. 2
Modifications ..................................... 2
Boating safety ................................. 2
Alcohol and drugs .............................2
Personal flotation devices ................. 2
People in the water ...........................2
Passengers ....................................... 2
Overloading....................................... 2
Avoid collisions ................................. 3
Weather ............................................ 3
Passenger training ............................ 3
Boating safety publications ...............3
Laws and regulations ........................ 3
General information ..........................4
Identification numbers record.......... 4
Outboard motor serial number .......... 4
Key number....................................... 4
EC Declaration of Conformity
(DoC)............................................. 4
CE Marking ..................................... 4
Read manuals and labels................ 6
Warning labels ..................................6
Specifications and requirements..... 9
Specifications .................................. 9
Installation requirements ............... 10
Boat horsepower rating................... 10
Mounting motor ............................... 10
Remote control requirements........ 10
Battery requirements..................... 11
Battery specifications ...................... 11
Mounting battery .............................11
Multiple batteries............................. 11
Propeller selection......................... 11
Counter rotation models.................. 11
Start-in-gear protection ................. 12
Engine oil requirements ................ 12
Fuel requirements......................... 12
Gasoline .......................................... 12
Muddy or acidic water................... 12
Anti-fouling paint ........................... 12
Motor disposal requirements......... 13
Emergency equipment.................. 13
Components .................................... 14
Components diagram.................... 14
Remote control box ......................... 14
Remote control lever ....................... 15
Neutral interlock trigger ................... 15
Neutral throttle lever........................ 16
Choke switch................................... 16
Free accelerator .............................. 16
Throttle friction adjuster................... 17
Engine shut-off cord (lanyard) and
clip................................................. 17
Choke knob for pull type .................18
Main switch .....................................18
Power trim and tilt switch on
remote control ............................... 19
Power trim and tilt switch on
bottom engine cowling ..................19
Power trim and tilt switches (twin
binnacle type)................................ 19
Trim tab with anode......................... 20
Tilt support lever for power
trim and tilt model.......................... 20
Top cowling lock lever (pull up
type) .............................................. 21
Instruments and indicators............ 22
Digital tachometer......................... 22
Tachometer ..................................... 22
Trim meter....................................... 22
Hour meter ......................................22
Oil level indicator (digital type) ........23
Overheat-alert indicator................... 23
Digital speedometer...................... 23
Speedometer................................... 23
Fuel gauge ......................................24
Trip meter / Clock / Voltmeter .........24
Fuel level-alert indicator .................. 25
Low battery voltage-alert
indicator ........................................25
Page 5
Table of contents
Fuel management meter ............... 25
Fuel flow meter................................ 26
Fuel consumption meter / Fuel
economy meter / Twin engine
speed synchronizer....................... 26
Water separator-alert indicator........ 28
Engine control system.................... 29
Alert system .................................. 29
Overheat alert .................................29
Oil level alert and oil filter clogging
alert............................................... 29
Installation .......................................31
Installation ..................................... 31
Mounting the outboard motor.......... 31
Operation .........................................33
First-time operation ....................... 33
Breaking in engine ..........................33
Getting to know your boat ............... 33
Checks before starting engine ...... 33
Fuel level......................................... 34
Remove cowling.............................. 34
Fuel system..................................... 34
Controls........................................... 35
Engine shut-off cord (lanyard)......... 35
Oil.................................................... 35
Engine............................................. 35
Operation after long period of
storage.......................................... 35
Install cowling.................................. 36
Checking power trim and tilt
system .......................................... 36
Battery............................................. 38
Filling fuel and engine oil............... 38
Filling fuel for models without a
fuel joint ........................................ 38
Filling oil for oil injection models...... 38
Oil level indicator operation............. 40
Operating engine........................... 41
Feeding fuel ....................................41
Starting engine................................ 41
Checks after starting engine ......... 44
Cooling water .................................. 44
Warming up engine ....................... 44
Choke start models ......................... 44
Checks after engine warm-up....... 44
Shifting ............................................44
Stop switches .................................. 44
Shifting.......................................... 44
Stopping boat................................ 46
Stopping engine............................ 46
Procedure........................................ 46
Trimming outboard motor.............. 46
Adjusting trim angle (Power trim
and tilt) ..........................................47
Adjusting boat trim ..........................48
Tilting up and down....................... 49
Procedure for tilting up (power trim
and tilt models).............................. 49
Procedure for tilting down (power
trim and tilt models)....................... 50
Shallow water................................ 51
Power trim and tilt models............... 51
Cruising in other conditions........... 52
Maintenance .................................... 53
Transporting and storing
outboard motor ........................... 53
Storing outboard motor ...................53
Procedure........................................ 53
Lubrication (oil injection models)..... 54
Cleaning the outboard motor........... 54
Checking painted surface of
motor.............................................55
Periodic maintenance ................... 55
Replacement parts .......................... 55
Severe operating conditions............ 55
Maintenance chart 1........................ 57
Maintenance chart 2........................ 59
Greasing.......................................... 60
Cleaning and adjusting spark
plug ...............................................60
Checking fuel filter........................... 61
Inspecting idling speed.................... 62
Checking water in engine oil tank ...62
Checking wiring and connectors .....62
Checking propeller ..........................63
Removing propeller ......................... 63
Installing propeller ........................... 64
Changing gear oil ............................ 64
Inspecting and replacing
Page 6
Table of contents
anode(s)........................................ 65
Checking battery (for electric start
models) ......................................... 66
Connecting the battery.................... 67
Disconnecting the battery ............... 68
Trouble Recovery............................ 69
Troubleshooting ............................ 69
Temporary action in emergency..... 72
Impact damage ...............................72
Running single engine (twin
engines) ........................................ 72
Replacing fuse ................................73
Power trim and tilt will not
operate.......................................... 73
Starter will not operate .................... 73
Emergency starting engine .............74
Engine fails to operate .................. 75
Ignition system malfunction............. 75
Low oil level alert activates .............76
Treatment of submerged motor..... 77
Page 7
Safety information
EMU33622
Outboard motor safety
Observe these precautions at all times.
EMU36500
Propeller
People can be injured or killed if they come
in contact with the propeller. The propeller
can keep moving even when the motor is in
neutral, and sharp edges of the propeller can
cut even when stationary.
●
Shut off the engine when a person is in the
water near you.
●
Keep people out of reach of the propeller,
even when the engine is off.
EMU33630
Rotating parts
Hands, feet, hair, jewelry, clothing, PFD
straps, etc. can become entangled with internal rotating parts of the engine, resulting in
serious injury or death.
Keep the top cowling in place whenever possible. Do not remove or replace the cowling
with the engine running.
Only operate the engine with the cowling removed according to the specific instructions
in the manual. Keep hands, feet, hair, jewelry, clothing, PFD straps, etc. away from any
exposed moving parts.
EMU33640
Hot parts
During and after operation, engine parts are
hot enough to cause burns. Avoid touching
any parts under the top cowling until the engine has cooled.
EMU33650
Electric shock
Do not touch any electrical parts while starting or operating the engine. They can cause
shock or electrocution.
EMU33660
Power trim and tilt
Body parts can be crushed between the mo-
tor and the clamp bracket when the motor is
trimmed or tilted. Keep body parts out of this
area at all times. Be sure no one is in this
area before operating the power trim and tilt
mechanism.
The power trim and tilt switches operate
even when the main switch is off. Keep people be away from the switches whenever
working around the motor.
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.
EMU33671
Engine shut-off cord (lanyard)
Attach the engine shut-off cord so that the
engine stops if the operator falls overboard
or leaves the helm. This prevents the boat
from running away under power and leaving
people stranded, or running over people or
objects.
Always attach the engine shut-off cord to a
secure place on your clothing or your arm or
leg while operating. Do not remove it to leave
the helm while the boat is moving. Do not attach the cord to clothing that could tear
loose, or route the cord where it could become entangled, preventing it from functioning.
Do not route the cord where it is likely to be
accidentally pulled out. If the cord is pulled
during operation, the engine will shut off and
you will lose most steering control. The boat
could slow rapidly, throwing people and objects forward.
EMU33810
Gasoline
Gasoline and its vapors are highly flammable and explosive.
cording to the procedure on page 41 to
reduce the risk of fire and explosion.
Always, refuel ac-
1
Page 8
Safety information
EMU33820
Gasoline exposure and spills
Take care not to spill gasoline. If gasoline
spills, wipe it up immediately with dry rags.
Dispose of rags properly.
If any gasoline spills onto your skin, immediately wash with soap and water. Change
clothing if gasoline spills on it.
If you swallow gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get
immediate medical attention. Never siphon
fuel by mouth.
EMU33900
Carbon monoxide
This product emits exhaust gases which
contain carbon monoxide, a colorless, odorless gas which may cause brain damage or
death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cabin areas well ventilated. Avoid
blocking exhaust outlets.
EMU33780
Modifications
Do not attempt to modify this outboard motor. Modifications to your outboard motor
may reduce safety and reliability, and render
the outboard unsafe or illegal to use.
EMU33740
Boating safety
This section includes a few of the many important safety precautions that you should
follow when boating.
EMU33710
Alcohol and drugs
Never operate after drinking alcohol or taking drugs. Intoxication is one of the most
common factors contributing to boating fatalities.
EMU33720
Personal flotation devices
Have an approved personal flotation device
(PFD) on board for every occupant. Yamaha
recommends that you must 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 conditions.
EMU33730
People in the water
Always watch carefully for people in the water, such as swimmers, skiers, or divers,
whenever the engine is running. When
someone is in the water near the boat, shift
into neutral and shut off the motor.
Stay away from swimming areas. Swimmers
can be hard to see.
The propeller can keep moving even when
the motor is in neutral. Shut off the engine
when a person is in the water near you.
EMU33750
Passengers
Consult your boat manufacturer’s instructions for details about appropriate passenger
locations in your boat and be sure all passengers are positioned properly before accelerating and when operating above an idle
speed. Standing or sitting in non-designated
locations may result in being thrown either
overboard or within the boat due to waves,
wakes, or sudden changes in speed or direction. Even when people are positioned properly, alert your passengers if you must make
any unusual maneuver. Always avoid jumping waves or wakes.
EMU33760
Overloading
Do not overload the boat. Consult the boat
capacity plate or boat manufacturer for maximum weight and number of passengers. Be
sure that weight is properly distributed according to the boat manufacturers instructions. Overloading or incorrect weight
distribution can compromise the boats han-
2
Page 9
Safety information
dling and lead to an accident, capsizing or
swamping.
EMU33771
Avoid collisions
Scan constantly
other boats. Be alert for conditions that limit
your visibility or block your vision of others.
Operate defensively
keep a safe distance away from people, objects, and other boats.
Do not follow directly behind other boats or
●
waterskiers.
●
Avoid sharp turns or other maneuvers that
make it hard for others to avoid you or understand where you are going.
●
Avoid areas with submerged objects or
shallow water.
●
Ride within your limits and avoid aggressive maneuvers to reduce the risk of loss
of control, ejection, and collision.
●
Take early action
member,
stopping the engine or reducing throttle
can reduce the ability to steer. If you are
not sure that you can stop in time before
hitting an obstacle, apply throttle and turn
in another direction.
EMU33790
for people, objects, and
ZMU06025
at safe speeds and
to avoid collisions. Re-
boats do not have brakes
, and
Weather
Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
EMU33880
Passenger training
Make sure at least one other passenger is
trained to operate the boat in the event of an
emergency.
EMU33890
Boating safety publications
Be informed about boating safety. Additional
publications and information can be obtained
from many boating organizations.
EMU33600
Laws and regulations
Know the marine laws and regulations where
you will be boating- and obey them. Several
sets of rules prevail according to geographic
location, but all are basically the same as the
International Rules of the Road.
3
Page 10
General information
EMU25171
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 stolen.
1. Outboard motor serial number location
EMU25190
Key number
If a main key switch is equipped with the motor, 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.
1. Key number
EMU37290
EC Declaration of Conformity
(DoC)
This outboard motor conforms to certain portions of the European Parliament directive
relating to machinery.
Each conformed outboard motor accompanied with EC DoC.EC DoC contains the following information;
Name of Engine Manufacture
●
●
Model name
Product code of model (Approved model
●
code)
●
Code of conformed directives
EMU25203
CE Marking
Outboard motors affixed with this “CE”marking conform with the directives of; 98/37/EC,
94/25/EC - 2003/44/EC and 2004/108/EC.
4
Page 11
General information
1
1. CE marking location
ZMU03900
ZMU06040
5
Page 12
General information
EMU33520
Read manuals and labels
Before operating or working on this motor:
●
Read this manual.
●
Read any manuals supplied with the boat.
●
Read all labels on the outboard motor and the boat.
If you need any additional information, contact your Yamaha dealer.
EMU33831
Warning labels
If these labels are damaged or missing, contact your Yamaha dealer for replacements.
1
1
2
3
ZMU06216
6
Page 13
General information
1
EMU33912
Contents of labels
The above warning labels mean as follows.
1
EWM01691
WARNING
Emergency starting does not have startin-gear protection. Ensure shift control is
in neutral before starting engine.
2
EWM01681
WARNING
●
Keep hands, hair, and clothing away
from rotating parts while the engine is
running.
●
Do not touch or remove electrical parts
when starting or during operation.
2
3
ZMU05706
3
EWM01671
WARNING
Read Owner’s Manuals and labels.
●
●
Wear an approved personal flotation
device (PFD).
Attach engine shut-off cord (lanyard) to
●
your PFD, arm, or leg so the engine
stops if you accidentally leave the
helm, which could prevent a runaway
boat.
7
Page 14
General information
EMU33843
Symbols
The following symbols mean as follows.
Notice/Warning
ZMU05696
Read Owner’s Manual
ZMU05664
Electrical hazard
ZMU05666
Remote control lever/gear shift lever operating direction, dual direction
ZMU05667
Engine start/ Engine cranking
Hazard caused by continuous rotation
ZMU05665
8
ZMU05668
Page 15
Specifications and requirements
T
EMU31480
Specifications
IP:
“(AL)” stated in the specification data below
represents the numerical value for the aluminum propeller installed.
Likewise, “(SUS)” represents the value for
stainless steel propeller installed and “(PL)”
for plastic propeller installed.
EMU2821C
Dimension:
Overall length:
823 mm (32.4 in)
Overall width:
577 mm (22.7 in)
Overall height L:
1615 mm (63.6 in)
Overall height X:
1742 mm (68.6 in)
Transom height L:
516 mm (20.3 in)
Transom height X:
642 mm (25.3 in)
Weight (AL) L:
150FETO 192.0 kg (423 lb)
200FETO 192.0 kg (423 lb)
Weight (AL) X:
150FETO 196.0 kg (432 lb)
200FETO 196.0 kg (432 lb)
Weight (SUS) L:
150FETO 194.0 kg (428 lb)
200FETO 194.0 kg (428 lb)
L200FETO 196.0 kg (432 lb)
Weight (SUS) X:
150FETO 198.0 kg (437 lb)
200FETO 198.0 kg (437 lb)
L200FETO 200.0 kg (441 lb)
Performance:
Full throttle operating range:
4500–5500 r/min
Maximum output:
150FETO 110.3 kW@5000 r/min
(150 HP@5000 r/min)
200FETO 147.1 kW@5000 r/min
(200 HP@5000 r/min)
L200FETO 147.1 kW@5000 r/min
(200 HP@5000 r/min)
Idling speed (in neutral):
700 ±25 r/min
Engine:
Type:
2-stroke V
Displacement:
2596.0 cm
Bore × stroke:
90.0 × 68.0 mm (3.54 × 2.68 in)
Ignition system:
CDI (micro computer)
Spark plug (NGK):
150FETO BR7HS-10
200FETO BR8HS-10
L200FETO BR8HS-10
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
Control system:
Remote control
Starting system:
Electric
Starting carburetion system:
Choke valve
Min. cold cranking amps (CCA/EN):
430.0 A
Min. rated capacity (20HR/IEC):
70.0 Ah
Maximum generator output:
25.0 A
Drive unit:
Gear positions:
Forward-neutral-reverse
Gear ratio:
1.86 (26/14)
3
9
Page 16
Specifications and requirements
Trim and tilt system:
Power trim and tilt
Propeller mark:
150FETO M
200FETO M
L200FETO ML
Fuel and oil:
Recommended fuel:
Regular unleaded gasoline
Min. research octane:
90
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
Lubrication:
Oil injection
Engine oil tank capacity:
0.9 L (0.95 US qt, 0.79 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:
150FETO 0.980 L
(1.036 US qt, 0.862 Imp.qt)
200FETO 0.980 L
(1.036 US qt, 0.862 Imp.qt)
L200FETO 0.870 L
(0.920 US qt, 0.766 Imp.qt)
Tightening torque for engine:
Spark plug:
25.0 Nm (2.55 kgf-m, 18.4 ft-lb)
Propeller nut:
55.0 Nm (5.61 kgf-m, 40.6 ft-lb)
Noise and vibration level:
Operator sound pressure level
(ICOMIA 39/94 and 40/94):
200FETO 80.1 dB(A)
L200FETO 80.1 dB(A)
EMU33553
Installation requirements
EMU33563
Boat horsepower rating
EWM01560
WARNING
Overpowering a boat can cause severe
instability.
Before installing the outboard motor(s), confirm that the total horsepower of your motor(s) does not exceed the boats maximum
horsepower rating. See the boat’s capacity
plate or contact the manufacturer.
EMU33571
Mounting motor
EWM01570
WARNING
Improper mounting of the outboard mo-
●
tor could result in hazardous conditions such as poor handling, loss of
control, or fire hazards.
Because the motor is very heavy, spe-
●
cial equipment and training is required
to mount it safely.
Your dealer or other person experienced in
proper rigging should mount the motor using
correct equipment and complete rigging instructions. For further information, see page
31.
EMU33581
Remote control requirements
EWM01580
WARNING
If the engine starts in gear, the boat can
●
move suddenly and unexpectedly, possibly causing a collision or throwing
passengers overboard.
●
If the engine ever starts in gear, the
start-in-gear protection device is not
working correctly and you should discontinue using the outboard. Contact
10
Page 17
Specifications and requirements
your Yamaha dealer.
The remote control unit must be equipped
with a start-in-gear protection device(s). This
device prevents the engine from starting unless it is in neutral.
EMU25694
Battery requirements
EMU25721
Battery specifications
Minimum cold cranking amps (CCA/EN):
430.0 A
Minimum rated capacity (20HR/IEC):
70.0 Ah
The engine cannot be started if battery voltage is too low.
EMU36290
Mounting battery
Mount the battery holder securely in a dry,
well-ventilated, vibration-free location in the
boat.
WARNING! Do not put flammable
items, or loose heavy or metal objects in
the same compartment as the battery.
Fire, explosion or sparks could result.
[EWM01820]
EMU36300
Multiple batteries
To connect multiple batteries, such as for
multiple engine configurations or for an accessory battery, consult your Yamaha dealer
about battery selection and correct wiring.
EMU34191
Propeller selection
Next to selecting an outboard, choosing the
right propeller is one of the most important
purchasing decisions a boater can make.
The type, size, and design of your propeller
have a direct impact on acceleration, top
speed, fuel economy, and even engine life.
Yamaha designs and manufactures propellers for every Yamaha outboard motor and
every application.
Your outboard motor came with a Yamaha
propeller chosen to perform well over a
range of applications, but there may be uses
where a different propeller would be more
appropriate.
Your Yamaha dealer can help you select the
right propeller for your boating needs. Select
a propeller that will allow the engine to reach
the middle or upper half of the operating
range at full throttle with the maximum boatload. Generally, chose a larger pitch propeller for a smaller operating load and a smaller
pitch propeller for a heavier load. If you carry
loads that vary widely, chose the propeller
that lets the engine run in the proper range
for your maximum load but remember that
you may need to reduce your throttle setting
to stay within the recommended engine
speed range when carrying lighter loads.
For instructions on propeller removal and installation, see page 63.
x
-
123
ZMU04608
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU36310
Counter rotation models
Standard outboard motors rotate clockwise.
Counter rotation models rotate counterclockwise. Counter rotation models are typically
11
Page 18
Specifications and requirements
used in multiple motor setups and are
marked with an “L” on the gear case above
the anti-ventilation plate.
On counter rotation models, be sure to use a
propeller intended for counterclockwise rotation. These propellers are identified with the
letter “L” after the size indication on the propeller.
WARNING! Never use a standard
propeller with a counter rotation motor,
or a counter rotation propeller with a
standard motor. Otherwise the boat could
go in the direction opposite of that expected (for example, reverse instead of
forward), which could lead to an accident.
[EWM01810]
For instructions on propeller removal and installation, see page 63 and 64.
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-approved 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.
EMU25651
Engine oil requirements
Recommended engine oil:
YAMALUBE 2-stroke outboard motor
oil
If the recommended engine oil is not available, another 2-stroke engine oil with an
NMMA-certified TC-W3 rating may be used.
EMU36360
Fuel requirements
EMU36801
Gasoline
Use a good quality gasoline that meets the
minimum octane rating. If knocking or pinging occurs, use a different brand of gasoline
or premium unleaded fuel.
Recommended gasoline:
Regular unleaded gasoline with a minimum octane rating of 90 (Research
Octane Number).
ECM01980
NOTICE
●
Do not use leaded gasoline. Leaded
gasoline can seriously damage the engine.
●
Avoid getting water and contaminants
in the fuel tank. Contaminated fuel can
cause poor performance or engine
damage. Use only fresh gasoline that
has been stored in clean containers.
EMU36880
Muddy or acidic water
Yamaha strongly recommends that you have
your dealer install the optional chromiumplated water pump kit if you use the outboard
motor in muddy or acidic water conditions.
However, depending on the model it might
not be required.
EMU36330
Anti-fouling paint
A clean hull improves boat performance. The
boat bottom should be kept as clean of marine growth as possible. If necessary, the
boat bottom can be coated with an anti-fouling 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.
12
Page 19
Specifications and requirements
EMU36341
Motor disposal requirements
Never illegally discard (dump) the motor.
Yamaha recommends consulting the dealer
about discarding the motor.
EMU36351
Emergency equipment
Keep the following items onboard in case
there is trouble with the motor.
●
A tool kit with assorted screwdrivers, pliers, wrenches (including metric sizes), and
electrical tape.
●
Waterproof flashlight with extra batteries.
●
An extra engine shut-off cord (lanyard)
with clip.
●
Spare parts, such as an extra set of spark
plugs.
Consult your Yamaha dealer for details.
13
Page 20
Components
T
EMU2579J
Components diagram
IP:
* May not be exactly as shown; also may not be included as standard equipment on all models.
150F, 200F, L200F
11
12
9
10
1
13
14
9
2
8
3
7
4
6
5
1. Power trim and tilt switch
2. Tilt support lever
3. Anti-cavitation plate
4. Trim tab (anode)
5. Propeller
6. Cooling water inlet
7. Anode
8. Clamp bracket
9. Top cowling lock lever
10. Choke knob
11. Top cowling
12. Cooling water pilot hole
13. Remote control box (side mount type)*
14. Remote control box (binnacle mount type)*
15. Switch panel (for use with binnacle type)*
15
16
17
18 19
16. Digital tachometer
17. Digital speedometer*
18. Fuel management meter*
19. Remote oil tank
EMU26181
Remote control box
The remote control lever actuates both the
shifter and the throttle. The electrical switches are mounted on the remote control box.
ZMU06272
14
Page 21
Components
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 shut-off switch
7. Throttle friction adjuster
1
2
4
2
3
ZMU04569
1. Remote control lever
2. Power trim and tilt switch
3. Free accelerator
4. Throttle friction adjuster
EMU26190
Remote control lever
Moving the lever forward from the neutral position engages forward gear. Pulling the lever back from neutral engages reverse. The
engine will continue to run at idle until the lever is moved about 35° (a detent can be felt).
Moving the lever farther opens the throttle,
and the engine will begin to accelerate.
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
N
F
2
6
1
4
R
4
3
6
5
5
7
7
ZMU04573
1. Neutral “ ”
2. Forward “ ”
3. Reverse “ ”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
EMU26201
Neutral interlock trigger
To shift out of neutral, first pull the neutral interlock trigger up.
15
Page 22
Components
T
1. Neutral interlock trigger
choke system will then supply the rich fuel
mixture required to start the engine. When
the key is released, the choke will switch off
automatically.
EMU26211
Neutral throttle lever
To open the throttle without shifting into either forward or reverse, put the remote control lever in the neutral position and lift the
neutral throttle lever.
IP:
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.
1. Fully open
2. Fully closed
ZMU03160
ON
START
ZMU04593
EMU26232
Free accelerator
To open the throttle without shifting into either forward or reverse, push the free accelerator button and move the remote control
lever.
EMU26221
Choke switch
To activate the choke system, press in the
main switch while the key is turned to the
“” (on) or “ ” (start) position. The
16
Page 23
T
2
3
1
ZMU04575
1. Fully open
2. Fully closed
3. Free accelerator
IP:
The free accelerator button can only be
●
used when the remote control lever is in
the neutral position.
After the button is pushed, the throttle be-
●
gins to open after the remote control lever
is moved at least 35°.
After using the free accelerator, return the
●
remote control lever to the neutral position.
The free accelerator button will return automatically to its set position. The remote
control will then engage forward and reverse normally.
EMU25973
Throttle friction adjuster
A friction device provides adjustable resistance to movement of the throttle grip or the
remote control lever, and can be set according to operator preference.
To increase resistance, turn the adjuster
clockwise.
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.
To decrease resistance, turn the adjuster
counterclockwise.
WARNING! Do not overtighten
[EWM00032]
Components
ZMU04646
When constant speed is desired, tighten the
adjuster to maintain the desired throttle setting.
EMU25993
Engine shut-off cord (lanyard) and
clip
The clip must be attached to the engine shutoff switch for the engine to run. The cord
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
cord will pull out the clip, stopping ignition to
the engine. This will prevent the boat from
running away under power.
tach the engine shut-off cord to a secure
place on your clothing, or your arm or leg
while operating. Do not attach the cord to
clothing that could tear loose. Do not
route the cord where it could become entangled, preventing it from functioning.
Avoid accidentally pulling the cord dur-
WARNING! At-
17
Page 24
Components
ing normal operation. Loss of engine
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.
1. Cord
2. Clip
3. Engine shut-off switch
[EWM00122]
ON
ON
OFF
START
START
OFF
3
2
1
ZMU04564
ZMU03903
EMU26090
Main switch
The main switch controls the ignition system;
its operation is described below.
“”
●
With the main switch in the “ ” (off) position, the electrical circuits are off, and the key
can be removed.
●
With the main switch in the “ ” (on) position, the electrical circuits are on, and the key
cannot be removed.
●
With the main switch in the “ ” (start) position, the starter motor turns to start the engine. When the key is released, it returns
automatically to the “ ” (on) position.
(off)
“”
(on)
“”
(start)
1. Cord
2. Clip
3. Engine shut-off switch
EMU26011
Choke knob for pull type
To supply the engine with the rich fuel mixture required to start, pull out this knob.
18
Page 25
EMU32052
OFF
ON
START
OFF
ON
START
ZMU04566
Power trim and tilt switch on remote
control
The power trim and tilt system adjusts the
outboard motor angle in relation to the transom. Pressing the switch “ ” (up) trims the
outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard
motor down and trims it down. When the
switch is released, the outboard motor will
stop in its current position. For instructions
on using the power trim and tilt switch, see
pages 46 and 49.
Components
down and trims it down. When the switch is
released, the outboard motor will stop in its
current position.
For instructions on using the power trim and
tilt switch, see page 49.
EWM01030
WARNING
Use the power trim and tilt switch located
on the bottom engine cowling only when
the boat is at a complete stop with the engine 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 obstacle.
UP
DN
EMU26153
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. Pressing the switch “ ” (up) trims the outboard
motor up, and then tilts it up. Pressing the
switch “ ” (down) tilts the outboard motor
ZMU03517
EMU26163
Power trim and tilt switches (twin
binnacle type)
The power trim and tilt system adjusts the
outboard motor angle in relation to the transom. Pushing the switch “ ” (up) trims the
outboard motor up, and then tilts it up. Pressing the switch “ ” (down) tilts the outboard
motor down and trims it down. When the
switch is released, the outboard motor will
stop in its current position. For instructions
on using the power trim and tilt switches, see
pages 46 and 49.
19
Page 26
Components
T
1
DN
UP
1. Power trim and tilt switch
ZMU04568
will become ineffective as an anode.
3
2
1
B
A
ZMU02525
IP:
On the dual engine control, the switch on the
remote control grip controls both outboard
motors at the same time.
EMU26244
Trim tab with anode
EWM00840
WARNING
An improperly adjusted trim tab could
cause difficult steering. Always test run
after the trim tab has been installed or replaced to be sure steering is correct. Be
sure you have tightened the bolt after adjusting the trim tab.
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
force.
If the boat tends to veer to the left (port side),
turn the trim tab rear end to the port side “A”
in the figure. If the boat tends to veer to the
right (starboard side), turn the trim tab end to
the starboard side “B” in the figure.
ECM00840
NOTICE
The trim tab also serves as an anode to
protect the engine from electrochemical
corrosion. Never paint the trim tab as it
1. Trim tab
2. Bolt
3. Cap
A
B
ZMU01863
Bolt tightening torque:
150F, 200F 39.2 Nm
(4.0 kgf-m, 28.9 ft-lb)
L200F 42.0 Nm (4.2 kgf-m, 31 ft-lb)
EMU26341
Tilt support lever for power trim and
tilt model
To keep the outboard motor in the tilted up
position, lock the tilt support lever to the
clamp bracket.
20
Page 27
Components
1
1
ZMU03947
1. Tilt support lever
ECM00660
NOTICE
Do not use the tilt support lever or knob
when trailering the boat. The outboard
motor could shake loose from the tilt support and fall. If the motor cannot be trailered in the normal running position, use
an additional support device to secure it
in the tilt position.
EMU26382
Top cowling lock lever (pull up type)
To remove the engine top cowling, pull up
the lock lever(s) and lift off the cowling.
When installing the cowling, check to be sure
it fits properly in the rubber seal. Then lock
the cowling by moving the lever(s) downward.
1
ZMU03905
1. Top cowling lock lever(s)
1. Top cowling lock lever(s)
ZMU03904
21
Page 28
Instruments and indicators
T
EMU26493
Digital tachometer
The tachometer shows the engine speed
and has the following functions.
All segments of the display will light momentarily after the main switch is turned on and
will return to normal thereafter.
1
3
5
6
1. Tachometer
2. Trim meter
3. Hour meter
4. Oil level indicator
5. Overheat-alert indicator
6. Set button
7. Mode button
4
7
ZMU01891
2
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.
ZMU01869
EMU26651
Hour meter
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.
IP:
The water separator and engine trouble-alert
indicators only operate when the engine is
equipped with the appropriate functions.
EMU36050
Tachometer
The tachometer displays engine speed in
hundreds of revolutions per minute (r/min).
For example, if the tachometer display reads
“22” then the engine speed is 2200 r/min.
EMU26621
Trim meter
This meter shows the trim angle of your outboard motor.
●
Memorize the trim angles that work best
for your boat under different conditions.
Adjust the trim angle to the desired using
22
ZMU01870
To change the display format, press the
“” (mode) button. The display can show
total hours or trip hours, or turn off.
To reset the trip hours, simultaneously press
the “ ” (set) and “ ” (mode) buttons for
more than 1 second while the trip hours are
displayed. This resets the trip counter to 0
(zero).
The total number of hours the engine has
been run cannot be reset.
Page 29
Instruments and indicators
EMU26551
Oil level indicator (digital type)
This indicator shows the engine oil level. If
the oil level falls below the lower limit, the
alert indicator will start to blink. For further information, see page 29.
ECM00030
NOTICE
Do not operate the engine without oil. Serious engine damage will occur.
1
ZMU01867
1. Oil level indicator
EMU26583
Overheat-alert indicator
If the engine temperature rises too high, the
alert indicator will start to blink. For further information on reading the indicator, see page
29.
ECM00052
NOTICE
Do not continue to run the engine if the
overheat-alert indicator is on. Serious engine damage will occur.
1
ZMU01868
1. Overheat-alert indicator
EMU26602
Digital speedometer
This gauge shows the boat speed and other
information.
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Alert indicator(s)
All segments of the display will light momentarily after the main switch is turned on and
will return to normal thereafter.
EMU36061
Speedometer
The speedometer displays km/h, mph, or
knots, according to operator preference. Select the desired units of measurement by setting the selector switch on the back of the
gauge. See the illustration for settings.
23
Page 30
Instruments and indicators
EMU36071
Trip meter / Clock / Voltmeter
The display shows either the trip meter, the
clock, or the voltmeter.
To change the display, press the “ ”
(mode) button repeatedly until the indicator
on the face of the gauge points to “ ” (trip
meter), “ ” (clock), or “ ” (voltmeter).
EMU26691
Trip meter
This gauge displays the distance the boat
1. Cap
2. Selector switch (for speed unit)
3. Selector switch (for fuel sensor)
EMU26712
Fuel gauge
Eight segments indicate the fuel level. When
all segments are showing, the fuel tank is
full.
has traveled since the gauge was last reset.
The trip distance is shown in kilometers or
miles depending upon the unit of measurement selected for the speedometer.
To reset the trip meter to zero, press the “ ”
(set) and “ ” (mode) buttons at the same
time.
The trip distance is kept in memory by battery power. The stored data will be lost if the
battery is disconnected.
ZMU01745
The fuel level reading can be inaccurate due
to 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.
Do not adjust the selector switch for fuel sensor. Incorrectly setting the selector switch on
the gauge will give false readings. Consult
your Yamaha dealer on how to correctly set
the selector switch.
of fuel can damage the engine.
24
NOTICE:
Running out
[ECM01770]
EMU26701
Clock
To set the clock:
1. Be sure the gauge is in the “ ” (time)
mode.
2. Press the “ ” (set) button; the hour display will begin blinking.
3. Press the “ ” (mode) button until the
desired hour is displayed.
4. Press the “ ” (set) button again, the
minute display will begin blinking.
Page 31
Instruments and indicators
5. Press the “ ” (mode) button until the
desired minute is displayed.
6. Press the “ ” (set) button again to start
the clock.
The clock operates on battery power. Disconnecting the battery will stop the clock.
Reset the clock after connecting the battery.
EMU36080
Voltmeter
The voltmeter displays the charge of the battery in volts(V).
EMU26721
Fuel level-alert indicator
If the fuel level decreases to one segment,
the fuel level alert segment will blink.
Do not continue to operate the engine with
full throttle if an alert device has activated.
Get back to the port within trolling engine
speed.
damage the engine.
NOTICE:
Running out of fuel can
[ECM01770]
EMU26732
Low battery voltage-alert indicator
If battery voltage drops, the display will automatically turn on and blink.
Get back to the port soon if an alert device
has activated. For charging the battery, consult your Yamaha dealer.
1. Low battery indicator
EMU26741
Fuel management meter
The fuel management meter shows the state
of the fuel consumption while the engine is
running.
1
1. Fuel level-alert segment
3
1. Fuel flow meter
2. Fuel consumption meter / Fuel economy
meter / Twin engine speed synchronizer
3. Water separator-alert indicator (operates
only if the sensor has been installed)
2
ZMU01748
All segments of the display will light momentarily after the main switch is turned on and
25
Page 32
Instruments and indicators
will return to normal thereafter.
EMU26752
Fuel flow meter
The fuel flow meter displays the amount of
fuel flow over a one-hour period, at the current rate of engine operation.
The fuel flow meter displays gallons/hour
●
or liters/hour according to operator preference. Select the desired units of measurement by setting the selector switch on the
back of the gauge during installation.
1. Selector switch
The fuel consumption meter and fuel
●
economy meter will indicate the same unit
of measurement.
Fuel flow readings are not accurate when the
engine is operating under about 1300 r/min.
As the fuel pump cycles on and off, the display indicates either no fuel flow or higher
flow than the actual average use.
Dual engine users: the fuel flow meter can
display the fuel flow of either or both engines.
To change the fuel flow display, press the
“” (set) button repeatedly until the gauge
displays “ ” (for fuel flow to the starboard engine only), “ ” (for fuel flow to the port engine
only), or “ ” (for total fuel flow both engines).
EMU36090
Fuel consumption meter / Fuel
economy meter / Twin engine speed
synchronizer
The display shows either the fuel consumption meter, the fuel economy meter, or the
twin engine synchronizer.
To change the display, press the “ ”
(mode) button repeatedly until the indicator
on the face of the gauge points to “ ” (fuel
consumption meter), “ ” (fuel economy
meter), or “ ” (twin engine speed synchronizer).
EMU26761
Fuel consumption meter
This gauge displays the total amount of fuel
consumed since the gauge was last reset.
To reset the total fuel consumption meter to
zero, press the “ ” (set) and “ ” (mode)
buttons at the same time.
ZMU01749
26
Page 33
Instruments and indicators
ZMU01751
EMU26771
Fuel economy
This gauge displays the approximate distance per liter or gallon when cruising.
movement at the stern of the boat. This
distance can vary greatly from the actual
distance traveled because of water currents, sea swells, and the condition of the
water speed sensor (if partially plugged or
damaged).
●
Individual engines may slightly vary in their
fuel consumption due to manufacturing
variations. These variations can be even
greater if the engines are of different year
models. In addition, variations in propellers, even of the same basic dimensions of
the same design, can also cause a slight
variation in fuel consumption.
EMU26782
Twin-engine speed synchronizer
This gauge displays the difference in engine
speed (r/min) between the port and starboard engines for reference purposes when
synchronizing the two engines’ speeds.
ZMU01752
If twin engines are installed on your boat, the
gauge will only display the total fuel economy
of both engines.
●
Fuel consumption varies greatly with boat
design, weight, propeller used, engine trim
angle, sea conditions (including wind), and
throttle position. Fuel consumption also
varies slightly with the type of water (salt,
fresh, and contaminate levels), air temper-
ature and humidity, cleanliness of the boat
bottom, engine mounting height, skill of
the operator, and individual gasoline for-
mulation (winter or summer fuel and
amount of additives).
The Yamaha digital speedometer and fuel
●
management meter calculates speed,
miles traveled, and fuel economy by water
ZMU01753
1
2
3
4
5
ZMU01754
1. Port engine speed is higher
27
Page 34
Instruments and indicators
2. Port engine speed is slightly higher
3. Engine speed is synchronized evenly
between port and starboard engines
4. Starboard engine speed is slightly higher
5. Starboard engine speed is higher
If the two engines’ speeds are not synchronized while cruising, adjusting trim angle or
throttle can synchronize them.
If large differences in trim angle or throttle
are needed to synchronize the engines, consult your Yamaha dealer for adjustments to
the throttle cables.
EMU26793
Water separator-alert indicator
This indicator will blink when water has accumulated in the water separator. In such an
event, stop the engine and drain the water
from the separator.
This indicator only operates when a water
separator sensor is equipped.
28
ZMU01755
Page 35
EMU26803
Alert system
ECM00091
NOTICE
Do not continue to operate the engine if a
alert device has activated. Consult your
Yamaha dealer if the problem cannot be
located and corrected.
EMU26826
Overheat alert
This engine has the overheat alert device. If
the engine temperature rises too high, the
alert device will activate.
The engine speed will automatically de-
●
crease to about 2000 r/min.
The overheat-alert indicator will light or
●
blink.
Engine control system
OFF STARTONOFF START
If the alert system has activated, stop the engine and check the cooling water inlets:
●
Check trim angle to be sure that the cooling water inlet is submerged.
●
Check the cooling water inlet for clogging.
ON
ZMU04584
The buzzer will sound.
●
ZMU01757
ZMU02630
Dual engine drive users:
If the overheat-alert system of one engine
activates, the engine will slow down. To
switch off the alert activation on the engine
not affected by overheating, turn off the main
switch of the engine overheating. If the alert
system has activated, stop the engine and tilt
the outboard motor up to check the cooling
water inlet for clogging. If the alert system
has still activated, tilt the overheated outboard motor up and return to the port.
EMU26848
Oil level alert and oil filter clogging
alert
Oil injection models
This engine has an oil level alert system. If
29
Page 36
Engine control system
T
the oil level falls below the lower limit, the
alert system will activate.
Activation of alert device
●
Engine speed will automatically decrease
to about 2000 r/min.
●
The oil level-alert indicator will light or
blink.
ZMU03942
The buzzer will sound (if equipped on the
●
tiller handle, remote control box, or main
switch panel).
the engine and check for the cause.
IP:
The alert for oil filter clogging is similar to the
alerts for low oil level and overheating. To
make troubleshooting easier, check for engine overheating first, then oil level, and finally oil filter clogging.
1
ZMU03906
1. Oil filter
OFF STARTONOFF START
ON
If the alert system has been activated, stop
30
ZMU03025
ZMU04584
1
1. Oil filter
ZMU01952
Page 37
EMU26902
Installation
The information presented in this section is
intended as reference only. It is not possible
to provide complete instructions for every
possible boat and motor combination. Proper mounting depends in part on experience
and the specific boat and motor combination.
EWM01590
WARNING
●
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.
●
Improper mounting of the outboard mo-
tor could result in hazardous condi-
tions such as poor handling, loss of
control, or fire hazards. For permanent-
ly mounted models, your dealer or oth-
er person experienced in proper
rigging should mount the motor.
EMU33481
Mounting the outboard motor
The outboard motor should be mounted so
that the boat is well balanced. Otherwise, the
boat could be hard to steer. For single-engine boats, mount the outboard motor on the
centerline (keel line) of the boat. For twin engine boats, mount the outboard motors equidistant from the centerline. Consult your
Yamaha dealer or boat manufacturer for further information on determining the proper
mounting location.
Installation
1
1. Center line (keel line)
1. Center line (keel line)
EMU26931
Mounting height (boat bottom)
The mounting height of your outboard motor
affects its efficiency and reliability. If it is
mounted too high, propeller ventilation may
occur, which will reduce propulsion due to
excessive propeller slip, and the water intakes for the cooling system may not get adequate water supply, which can cause
engine overheating. If the engine is mounted
too low, water resistance (drag) will increase, thereby reducing engine efficiency
and performance.
Most commonly, outboard motor should be
mounted so that the anti-cavitation plate is in
alignment with the bottom of the boat. The
optimum mounting height of the outboard
ZMU01873
31
Page 38
Installation
motor is affected by the boat/motor combination and the desired use. Test runs at different heights can help determine the optimum
mounting height. Consult your Yamaha dealer or boat manufacturer for further information on determining the proper mounting
height.
ZMU01762
ECM01630
NOTICE
●
During water testing, check the buoy-
ancy of the boat, at rest, with its maxi-
mum load. Check that the static water
level on the exhaust housing is low
enough to prevent water entry into the
power head when water rises due to
waves when the outboard is not run-
ning.
Incorrect engine height or obstructions
●
to the smooth flow of water (such as the
design or condition of the boat, or ac-
cessories such as transom ladders or
depth finder transducers) can create
airborne water spray while the boat is
cruising. If the motor is operated con-
tinuously in the presence of airborne
water spray, enough water could enter
the engine through the intake opening
on the cowling to cause severe engine
damage. Eliminate the cause of the air-
borne water spray.
32
Page 39
Operation
EMU36380
First-time operation
EMU27020
Breaking in engine
Your new engine requires a period of breakin to allow mating surfaces of moving parts to
wear in evenly. Correct break-in will help ensure proper performance and longer engine
life.
ECM00140
NOTICE
Failure to follow the break-in procedure
●
could result in reduced engine life or
even severe engine damage.
Premix fuel must be used during break-
●
in in addition to oil in the oil injection
system.
EMU27060
Gasoline and engine oil mixing chart
(50:1)
1. : Gasoline
2. : Engine oil
ECM00150
NOTICE
Be sure to mix gasoline and oil completely, otherwise the engine may be damaged.
EMU30311
Procedure for oil injection 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.
2. Next 50 minutes:
Do not exceed half throttle (approximately 3000 r/min). Vary engine speed
occasionally. If you have an easy-planing 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-quarter throttle (approximately 4000 r/min).
Vary engine speed occasionally. Run at
full throttle for one minute, then allow
about 10 minutes of operation at threequarter 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. Use only
straight gasoline in the fuel tank. The
Yamaha oil injection system provides
proper lubrication for normal operation.
EMU36400
Getting to know your boat
Different boats handle differently. Operate
cautiously while you learn how your boat
handles under different conditions and with
different trim angles (see page 46).
EMU36412
Checks before starting engine
EWM01920
WARNING
If any item in the checks before starting
engine is not working properly, have it inspected and repaired before operating
the outboard motor. Otherwise an acci-
33
Page 40
Operation
dent could occur.
ECM00120
NOTICE
Do not start the engine out of water. Overheating and serious engine damage can
occur.
EMU37150
Fuel level
Be sure you have plenty of fuel for your trip.
A good rule is to use 1/3 of your fuel to get to
the destination, 1/3 to return, and to keep 1/
3 as an emergency reserve. With the boat
level on a trailer or in the water, turn the key
to “ ”(on) and check the fuel level. For fuel
filling instructions, see page 38.
EMU36431
Remove cowling
For the following checks, remove the top
cowling from the engine. To remove the engine cowling, release all the lock levers and
lift off the cowling.
ZMU06106
EMU36442
Fuel system
EWM00060
WARNING
Gasoline and its vapors are highly flammable and explosive. Keep away from
sparks, cigarettes, flames, or other
sources of ignition.
EWM00910
WARNING
Leaking fuel can result in fire or explosion.
●
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.
EMU36450
Check for fuel leaks
Check under top cowling and in the boat
●
for fuel leaks or gasoline fumes.
●
Check fuel line connections to be sure they
are tight.
Check fuel lines for cracks, swelling, or
●
other damage.
EMU37320
Check the fuel filter
Check that the fuel filter is clean and free of
water. If any water is found in the fuel, or if a
significant amount of debris is found, the fuel
tank should be checked and cleaned by a
Yamaha dealer.
34
ZMU06102
ZMU06217
Page 41
Operation
EMU36460
Controls
●
Turn the steering wheel full-right and fullleft. Make sure operation is smooth and
unrestricted throughout the whole range
with no binding or excessive free play.
Operate the throttle levers several times to
●
make sure there is no hesitation in their
travel. Operation should be smooth over
the complete range of motion, and each lever should return completely to the idle position.
Look for loose or damaged connections of
●
the throttle and shift cables under the engine cowling.
EMU36481
Engine shut-off cord (lanyard)
Inspect the engine shut-off cord for damage,
such as cuts, breaks, and wear.
1. Cord
2. Clip
3. Engine shut-off switch
ON
ON
OFF
START
START
OFF
3
2
1
ZMU04564
1. Cord
2. Clip
3. Engine shut-off switch
EMU27120
Oil
Check to be sure you have plenty of oil for
●
your trip.
EMU27151
Engine
Check the engine and engine mounting.
●
●
Look for loose or damaged fasteners.
Check the propeller for damage.
●
Check for oil leaks.
●
EMU27181
Operation after long period of
storage
Oil injection models
When operating the engine after a long period (12 months) of storage, proceed as follows:
1. Use a 50:1 gasoline to oil mixture to start
the engine.
2. Start the engine. Leave it idling.
WARNING! 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.
3. Watch for oil flowing through the oil feed
pipes. After any air in the oil lines has
[EWM01331]
35
Page 42
Operation
been expelled, the oil injection system
should supply oil normally. If no oil is
flowing after 10 minutes of idling, consult
your Yamaha dealer.
ZMU03907
ECM01260
NOTICE
Be sure to take the above steps when operating the engine after a long period of
storage. Otherwise engine seizure could
occur.
EMU36961
Install cowling
1. Be sure that all cowling lock levers are
released.
2. Be sure that the rubber seal is seated all
the way around the engine.
3. Place the cowling on top of the seal.
4. Check to be sure the rubber seal fits correctly all the way around the engine.
5. Move the levers to lock the cowling as
shown.
installed correctly, water spray under
the cowling can damage the engine,
or the cowling can blow off at high
speeds.
NOTICE:
[ECM01990]
If the cowling is not
ZMU06131
ZMU06127
After installing, check the fitting of the top
cowling by pushing it with both hands. If the
top cowling is loose, have it repaired by your
Yamaha dealer.
ZMU04679
EMU29158
Checking power trim and tilt system
EWM01930
WARNING
●
Never get under the lower unit while it
is tilted, even when the tilt support lever
36
Page 43
is locked. Severe injury could occur if
the outboard motor accidentally falls.
Body parts can be crushed between the
●
motor and the clamp bracket when the
motor is trimmed or tilted.
Be sure no one is near the outboard
●
motor before performing this check.
1. Check the power trim and tilt unit for any
sign of oil leaks.
2. Operate each of the power trim and tilt
switches on the remote control and engine bottom cowling to check that all
switches work.
3. Tilt the outboard motor up and check
that the tilt rod and trim rods are extended completely.
1
Operation
1
ZMU03459
1. 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.
2
ZMU03458
1. Tilt rod
2. Trim rods
4. Use the tilt support lever to lock the motor in the up position. Operate the tilt
down switch briefly so the motor is supported by the tilt support lever.
ZMU04156
7. Activate the trim-up switch until the tilt
rod is fully extended. Unlock the tilt support lever.
ZMU03460
8. Tilt the outboard motor down. Check
37
Page 44
Operation
that the tilt rod and trim rods operate
smoothly.
EMU36581
Battery
Check that the battery is in good condition,
and fully charged. Check that the battery
connections are clean, secure and covered
by insulating covers. The electrical contacts
of the battery and cables must be clean and
properly connected or the battery will not
start the engine.
Refer to the battery manufacturer’s instructions for checks for your particular battery.
EMU27234
Filling fuel and engine oil
EMU30321
Filling fuel for models without a fuel
joint
EWM01830
WARNING
●
Gasoline and its vapors are highly flammable and explosive. Always refuel according to this procedure to reduce the
risk of fire and explosion.
●
Gasoline is poisonous and can cause
injury or death. Handle gasoline with
care. Never siphon gasoline by mouth.
If you should swallow some gasoline or
inhale a lot of gasoline vapor, or get
some gasoline in your eyes, see your
doctor immediately. If gasoline spills
on your skin, wash with soap and water. If gasoline spills on your clothing,
change your clothes.
or other sources of ignition.
5. If you use a portable container to store
and dispense fuel, only use a locally approved GASOLINE container.
6. Touch the fuel nozzle to the filler opening or funnel to help prevent electrostatic
sparks.
7. Fill the fuel tank, but do not overfill. Fuel
can expand and overflow if the temperature increases.
8. Tighten the filler cap securely.
9. Wipe up any spilled gasoline immediately with dry rags. Dispose rags properly.
According to local laws or regulations.
EMU27292
Filling oil for oil injection models
EWM00530
WARNING
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 operating 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 40.
To fill the engine oil tank, proceed as follows:
1. Pour engine oil into the remote oil tank.
Remote oil tank capacity:
10.5 L (11.10 US qt, 9.24 Imp.qt)
1. Stop the engine.
2. Be sure you are in a well-ventilated outdoor area, either securely moored or
trailered.
3. Make sure no one is in the boat.
4. Do not smoke and keep away from
sparks, flames, static electric discharge,
38
Page 45
T
ZMU01877
IP:
The oil level lines on the remote oil tank indicate the amount of additional oil that can be
added to the tank. The top oil level line indicates 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.
ECM00570
NOTICE
When the engine is operated for the first
time or stored for a period of time, a minimum 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
supplied.
Operation
39
Page 46
Operation
EMU27321
Oil level indicator operation
The various functions of the oil level system are as follows:
EMU27383
Oil level indicator
Electric start models
Oil level-alert
indicator
(digital
tachometer)
Oil level-alert
indicator (analog
tachometer)
Green
Engine oil
tank
more than 300
cm3 (0.32
US qt, 0.26
Imp qt)
Remote oil
tank
more than
1500 cm3 (1.6
US qt, 1.31
Imp qt)
Remarks
●
No refilling necessary.
Yellow
Red–Yellow–
Green
Red
more than 300
cm3 (0.32
US qt, 0.26
Imp qt)
300 cm3 (0.32
US qt, 0.26
Imp qt) or less
300 cm3 (0.32
US qt, 0.26
Imp qt) or less
1500 cm3 (1.6
US qt, 1.31
Imp qt) or less
more than
1500 cm3 (1.6
US qt, 1.31
Imp qt)
1500 cm3 (1.6
US qt, 1.31
Imp qt) or less
●
Add oil; see page 38.
Check oil filter for clog-
●
ging.
Check battery cable
●
connection. Buzzer will
sound.
Engine speed is auto-
●
matically reduced to
about 2000 r/min.
●
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.
40
Page 47
EMU27451
Operating engine
EMU27482
Feeding fuel
EWM00420
WARNING
●
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. Gasoline is highly flammable, and its vapors
are flammable and explosive. Refrain
from smoking, and keep away from
open flames and sparks while loosening the air vent screw.
●
This product emits exhaust gases
which contain carbon monoxide, a colorless, odorless gas which could cause
brain damage or death when inhaled.
Symptoms include nausea, dizziness,
and drowsiness. Keep cockpit and cabin 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 arrow pointing up, until you feel it become
firm.
Operation
1. Arrow
EMU27492
Starting engine
EWM01600
WARNING
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.
EMU27645
Electric start / remote control models
EWM01840
WARNING
Failure to attached engine shut-off cord
●
could result in a runaway boat if operator is ejected. Attach the engine shutoff cord to a secure place on your clothing, or your arm or leg while operating.
Do not attach the cord to clothing that
could tear loose. Do not route the cord
where it could become entangled, preventing it from functioning.
Avoid accidentally pulling the cord dur-
●
ing normal operation. Loss of engine
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.
41
Page 48
Operation
T
1. Place the remote control lever in neutral.
N
ZMU04588
IP:
The start-in-gear protection device prevents
the engine from starting except when in neutral.
2. Attach the engine shut-off cord to a secure place on your clothing, or your arm
or leg. Then install the clip on the other
end of the cord into the engine shut-off
switch.
ON
START
OFF
OFF
ZMU04589
3. Turn the main switch to “ ” (on).
ON
OFF
ZMU01880
ON STARTOFF
ZMU01953
ON
START
4. Open the throttle slightly without shifting
using the neutral throttle lever or free accelerator. You may need to change the
throttle opening slightly depending on
engine temperature. After the engine
starts, return the throttle to the original
position.
42
Page 49
T
T
N
ZMU02314
N
ZMU04592
IP:
●
On remote controls equipped with a neutral throttle lever, a good starting point is to
lift the lever just until you feel resistance,
then lift slightly more.
●
The neutral throttle lever or free accelerator can only be used when the remote control lever is in neutral.
5. Press in and hold the main switch to operate the remote choke system. The remote choke switch automatically returns
to its normal position when you release
your hand. Therefore keep the switch
pressed in.
IP:
●
It is not necessary to use the choke when
starting a warm engine.
Push in the main switch fully, or the remote
●
choke system will not operate.
6. Turn the main switch to “ ” (start),
Operation
and hold it for a maximum of 5 seconds.
ON
STARTOFF
ZMU03262
ON
START
ZMU04593
7. Immediately after the engine starts, release the main switch and allow it to return to “ ” (on).
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
impossible 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.
NOTICE:
[ECM00192]
Never turn
43
Page 50
Operation
EMU36510
Checks after starting engine
EMU36520
Cooling water
Check for a steady flow of water from the
cooling water pilot hole. A continuous flow of
water from the pilot hole shows that the water pump is pumping water through the cooling passages. If the cooling passages are
frozen, it may take a while for water to start
flowing out of the pilot hole.
ECM01810
NOTICE
If water is not flowing out of the pilot hole
at all times while the engine is running,
overheating and serious damage 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.
ZMU03908
Check that no water leaks from the joints between the exhaust cover, cylinder head, and
body cylinder.
EMU27670
Warming up engine
EMU27683
Choke start models
After starting the engine, allow it to idle for 3
minutes to warm up. Failure to do so will
shorten engine life. Gradually return the
choke knob to its home position as the engine warms up.
EMU36530
Checks after engine warm-up
EMU36540
Shifting
While tightly moored, and without applying
throttle, confirm that the engine shifts
smoothly into forward and reverse, and back
to neutral.
EMU31721
Stop switches
●
Confirm that turning the main switch to the
“” (off) position stops the engine.
●
Confirm that removing the clip from the engine shut-off switch stops the engine.
●
Confirm that the engine cannot be started
with the clip removed from the engine
shut-off switch.
EMU31730
Shifting
EWM00180
WARNING
Before shifting, make sure there are no
swimmers or obstacles in the water near
you.
ECM01610
NOTICE
Warm up the engine before shifting into
gear. Until the engine is warm, the idle
speed may be higher than normal. High
idle speed can prevent you from shifting
back to neutral. If this occurs, stop the
engine, shift to neutral, then restart the
engine and allow it to warm up.
To shift out of neutral
1. Pull the neutral interlock trigger up (if
equipped).
44
Page 51
1. Neutral interlock trigger
2. Move the remote control lever firmly and
crisply forward (for forward gear) or
backward (for reverse gear) about 35° (a
detent can felt).
Operation
2. After the engine is at idle speed in gear
move the remote control lever firmly and
crisply into the neutral position.
To shift from in gear (forward/reverse) to
neutral
1. Close the throttle so that the engine
slows to idle speed.
45
Page 52
Operation
T
N
ZMU04588
EMU31742
Stopping boat
EWM01510
WARNING
●
Do not use the reverse function to slow
down or stop the boat as it could cause
you to lose control, be ejected, or impact the steering wheel or other parts of
the boat. This could increase the risk of
serious injury. It could also damage the
shift mechanism.
●
Do not shift into reverse while traveling
at planing speeds. Loss of control, boat
swamping, or damage to the boat could
occur.
The boat is not equipped with a separate
braking system. Water resistance stops it after the throttle lever is moved back to idle.
The stopping distance varies depending on
gross weight, water surface conditions, and
wind direction.
EMU27821
Stopping engine
Before stopping the engine, first let it cool off
for a few minutes at idle or low speed. Stopping the engine immediately after operating
at high speed is not recommended.
EMU27853
Procedure
1. Turn the main switch to “ ” (off).
ON
OFF
ON
OFF
ZMU04600
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.
IP:
The engine can also be stopped by pulling
the cord and removing the clip from the engine shut-off switch, then turning the main
switch to “ ” (off).
EMU27862
Trimming outboard motor
EWM00740
WARNING
Excessive trim for the operating conditions (either trim up or trim down) can
cause boat instability and can make
steering the boat more difficult. This increases the possibility of an accident. If
46
Page 53
Operation
the boat begins to feel unstable or is hard
to steer, slow down and/or readjust the
trim angle.
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 improve 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.
angle. Body parts can be crushed between the motor and the clamp bracket
when the motor is trimmed or tilted.
●
Use caution when trying a trim position
for the first time. Increase speed gradually and watch for any signs of instability 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.
1
ZMU03441
1. Trim operating angle
EMU27885
Adjusting trim angle (Power trim and
tilt)
EWM00753
WARNING
●
Be sure all people are clear of the outboard motor when adjusting the trim
1. Power trim and tilt switch
1
DN
UP
ZMU04601
1. Power trim and tilt switch
47
Page 54
Operation
1
UP
DN
ZMU03522
1. 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 efficiency. 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 tendency to steer to one side or the other. Compensate 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 economy 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 performance further, and the boat may “porpoise” (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. Operating 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 operation difficult and dangerous.
48
Page 55
T
IP:
Depending on the type of boat, the outboard
motor trim angle may have little effect on the
trim of the boat when operating.
EMU27934
Tilting up and down
If the engine will be stopped for some time or
if the boat is moored in shallows, the outboard motor should be tilted up to protect the
propeller and lower casing from damage by
collision with obstructions, and also to reduce salt corrosion.
EWM00221
WARNING
Be sure all people are clear of the outboard motor when tilting up and down,
Body parts can be crushed between the
motor and the clamp bracket when the
motor is trimmed or tilted.
EWM00250
WARNING
Leaking fuel is a fire hazard. If there is a
fuel joint on the outboard motor, disconnect the fuel line or close the fuel cock if
the engine will be tilted for more than a
few minutes. Otherwise fuel may leak.
ECM00241
NOTICE
●
Before tilting the outboard motor, stop
the engine by following the procedure
Operation
on page 46. Never tilt the outboard motor 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.
EMU32723
Procedure for tilting up (power trim
and tilt models)
1. Place the remote control lever in neutral.
N
ZMU04588
2. Press the power trim and tilt switch “ ”
(up) until the outboard motor has tilted
up completely.
49
Page 56
Operation
UP
UP
ZMU04602
tor could shake loose from the tilt
support and fall. If the motor cannot
be trailered in the normal running position, use an additional support device to secure it in the tilt position.
For more detailed information, see
page 53.
[ECM01641]
ZMU03432
4. Models equipped with trim rods: Once
the outboard motor is supported with the
tilt support lever, press the power trim
and tilt switch “ ” (down) to retract the
trim rods.
NOTICE:
Be sure to retract
the trim rods completely during
mooring. This protects the rods from
marine growth and corrosion which
could damage the power trim and tilt
mechanism.
[ECM00251]
ZMU03523
3. Pull the tilt support lever toward you to
support the engine.
WARNING! 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 or in the power tilt unit loses
pressure.
[EWM00262]
NOTICE:
Do not use
the tilt support lever or knob when
trailering the boat. The outboard mo-
50
ZMU03997
EMU33120
Procedure for tilting down (power
trim and tilt models)
1. Push the power trim and tilt switch “ ”
Page 57
(up) until the outboard motor is supported by the tilt rod and the tilt support lever
becomes free.
2. Release the tilt support lever.
ZMU03453
3. Push the power trim and tilt switch “ ”
(down) to lower the outboard motor to
the desired position.
UP
DN
DN
ZMU01936
Operation
DN
ZMU03524
EMU28061
Shallow water
EMU32851
Power trim and tilt models
The outboard motor can be tilted up partially
to allow operation in shallow water.
ECM00260
NOTICE
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 setting up for and cruising in shallow water.
Otherwise severe damage from overheating can result.
EMU32922
Procedure for power trim and tilt models
1. Place the remote control lever in neutral.
DN
ZMU04603
51
Page 58
Operation
N
UP
ZMU04588
2. Slightly tilt the outboard motor up to the
desired position using the power trim
and tilt switch.
WARNING! Using the
power trim and tilt switch on the bottom cowling while the boat is moving
or engine is on could increase the
risk of falling overboard and could
distract the operator, increasing the
risk of collision with another boat or
an obstacle.
UP
[EWM01850]
UP
DN
ZMU01935
ZMU03527
3. To return the outboard motor to the normal running position, press the power
trim and tilt switch and slowly tilt the outboard motor down.
EMU28194
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. Also rinse the
outside of the outboard motor with fresh water and, if possible, rinse the power head under the cowling.
Cruising in muddy, turbid, or acidic water
Yamaha strongly recommends that you use
the optional chromium-plated water pump kit
(see page 12) if you use the outboard motor
in acidic water or water with a lot of sediment
in it, such as muddy or turbid (cloudy) water.
After operating in such water, flush the cooling passages with fresh water to prevent corrosion. Also rinse the outside of the outboard
motor with fresh water.
52
UP
ZMU04602
Page 59
Maintenance
EMU31841
Transporting and storing
outboard motor
EWM01860
WARNING
Leaking fuel is a fire hazard. When transporting and storing the outboard motor,
close the fuel cock to prevent fuel from
leaking. Never get under the engine while
it is tilted. Severe injury could occur if the
outboard motor accidentally falls.
ECM00660
NOTICE
Do not use the tilt support lever or knob
when trailering the boat. The outboard
motor could shake loose from the tilt support and fall. If the motor cannot be trailered 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 position using a motor support device such as
a transom saver bar. Consult your Yamaha
dealer for further details.
ZMU03122
EMU30272
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.
It is advisable to have your outboard motor
serviced by an authorized Yamaha dealer
prior to storage. However, you, the owner,
with a minimum of tools, can perform the following procedures.
ECM01411
NOTICE
●
Do not place the outboard motor on its
side before the cooling water has
drained from it completely, otherwise
water may enter the cylinder through
the exhaust port and cause engine trouble.
●
Store the outboard motor in a dry, wellventilated place, not in direct sunlight.
EMU28303
Procedure
EMU28323
Flushing with the flushing attachment
Flushing with the flushing attachment
1. Wash the outboard motor body using
fresh water.
ter into the air intake.
ther information, see page 54.
2. Disconnect the fuel line from the motor
or shut off the fuel cock, if equipped.
3. Remove the engine top cowling and silencer cover. Remove the propeller.
4. Install the flushing attachment over the
cooling water inlet.
the engine without supplying it with
cooling water. Either the engine water pump will be damaged or the engine will be damaged from
overheating. Before starting the engine, be sure to supply water to the
cooling water passages. Avoid running the outboard motor at high
NOTICE:
NOTICE:
Do not spray wa-
[ECM01840]
For fur-
Do not run
53
Page 60
Maintenance
T
T
speed while on the flushing attachment, otherwise overheating could
occur.
1. Flushing attachment
[ECM02000]
5. Cooling system flushing is essential to
prevent the cooling system from clogging up with salt, sand, or dirt. In addition, fogging/lubricating of the engine is
mandatory to prevent excessive engine
damage due to rust. Perform the flushing and fogging at the same time.
WARNING! 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.
[EWM00091]
6. Run the engine at a fast idle for a few
minutes in neutral position.
7. Just prior to turning off the engine, quickly spray “Fogging Oil” alternately into
each carburetor or the fogging hole of
the silencer cover, if equipped. When
properly done, the engine will smoke excessively and almost stall.
8. Remove the flushing attachment.
9. Install the silencer cover/cap of fogging
hole and top cowling.
10. If the “Fogging Oil” is not available, run
the engine at a fast idle until the fuel sys-
tem becomes empty and the engine
stops.
11. Drain the cooling water completely out
of the motor. Clean the body thoroughly.
12. If the “Fogging Oil” is not available, remove the spark plug(s). Pour a teaspoonful of clean engine oil into each
cylinder. Crank several times manually.
Replace the spark plug(s).
IP:
A flushing attachment is available from your
Yamaha dealer.
EMU28411
Lubrication (oil injection models)
1. Install the spark plug(s) and torque to
proper specification. For information on
spark plug installation, see page 60.
2. Fill the oil tanks. This prevents the formation 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 64. Inspect the oil for the presence of water which indicates a leaky
seal. Seal replacement should be performed by an authorized Yamaha dealer
prior to use.
4. Grease all grease fittings. For further details, see page 60.
IP:
For long-term storage, fogging the engine
with oil is recommended. Contact your
Yamaha dealer for information about fogging
oil and procedures for your engine.
EMU28450
Cleaning the outboard motor
After use, wash the exterior of the outboard
motor with fresh water. Flush the cooling
system with fresh water.
54
Page 61
T
ZMU02550
IP:
For cooling system flushing instructions, see
page 53.
EMU28460
Checking painted surface of motor
Check the motor for scratches, nicks, or flaking paint. Areas with damaged paint are
more likely to corrode. If necessary, clean
and paint the areas. A touch-up paint is available from your Yamaha dealer.
EMU2847B
Periodic maintenance
EWM01871
WARNING
These procedures require mechanical
skills, tools, and supplies. If you do not
have the proper skills, tools, or supplies
to perform a maintenance procedure,
have a Yamaha dealer or other qualified
mechanic do the work.
The procedures involve disassembling
the motor and exposing dangerous parts.
To reduce the risk of injury from moving,
hot, or electrical parts:
Turn off the engine and keep the key(s)
●
and engine shut-off cord (lanyard) with
you when you perform maintenance
unless otherwise specified.
●
The power trim and tilt switches operate even when the ignition key is off.
Keep people away from the switches
Maintenance
whenever working around the motor.
When the motor is tilted, keep away
from the area under it or between it and
the clamp bracket. Be sure no one is in
this area before operating the power
trim and tilt mechanism.
●
Allow the engine to cool before handling hot parts or fluids.
Always completely reassemble the mo-
●
tor before operation.
EMU28511
Replacement parts
If replacement parts are necessary, use only
genuine Yamaha parts or parts of equivalent
design and quality. Any part of inferior quality
may malfunction, and the resulting loss of
control could endanger the operator and
passengers. Yamaha genuine parts and accessories are available from your Yamaha
dealer.
EMU34150
Severe operating conditions
Severe operating conditions involve one or
more of the following types of operation on a
regular basis:
●
Operating continuously at or near maximum engine speed (rpm) for many hours
Operating continuously at a low engine
●
speed (rpm) for many hours
●
Brief periods of rapid acceleration and deceleration followed by engine shut off before the engine has reached proper
operating temperature
Frequent quick acceleration and decelera-
●
tion
●
Frequent shifting
Frequently starting and stopping the en-
●
gine(s)
●
Operation that fluctuates often between
light and heavy cargo loads
Outboard motors operating under any of
55
Page 62
Maintenance
these above conditions require more frequent maintenance. Yamaha recommends
that you do this service twice as often as
specified in the maintenance chart. For example, if a particular service should be done
at 50 hours, do it instead at 25 hours. This
will help prevent more rapid deterioration of
engine components.
56
Page 63
Maintenance
T
EMU34445
Maintenance chart 1
IP:
●
Refer to the sections in this chapter for explanations of each owner-specific action.
●
The maintenance cycle on these charts assume usage of 100 hours per year and regular
flushing of the cooling water passages. Maintenance frequency should be adjusted when
operating the engine under adverse conditions such as extended trolling.
●
Disassembly or repairs may be necessary depending on the outcome of maintenance
checks.
●
Expendable or consumable parts and lubricants will lose their effectiveness over time and
through normal usage regardless of the warranty period.
●
When operating in salt water, muddy, other turbid (cloudy), acidic 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.
Initial Every
Item Actions
Anode(s) (external)
Anode(s) (cylinder
head, thermostat
cover)
Anodes (exhaust cover,
cooling water passage
cover, Rectifier Regulator cover)
Battery (electrolyte
level, terminal)
Battery (electrolyte
level, terminal)
Cooling water leakage
Cowling clamp Inspection
Engine starting condition/Noise
Engine idling speed/
Noise
Fuel filter (can be disassembled)
Fuel line(High pressure)
Inspection or replacement as necessary
Inspection or replacement as necessary
Replacement
Inspection
Fill, charging or replacing as necessary
Inspection or replacement as necessary
Inspection
Inspection
Inspection or replacement as necessary
Inspection
20 hours
(3
months)
100
hours (1
year)
300
hours (3
years)
500
hours (5
years)
57
Page 64
Maintenance
Item Actions
Fuel line(High pressure)
Fuel line(Low pressure)
Fuel line(Low pressure)
Fuel pump
Fuel/oil leakage Inspection
Gear oil Replacement
Greasing points Greasing
Impeller/water pump
housing
Impeller/water pump
housing
Oil tank water drain Inspection or cleaning
Oil injection pump/oil
feed pump
Power trim & tilt unit/
Operation,noise and oil
leakage
Propeller/Propeller nut/
Cotter pin
PCV (Pressure Control Valve)
Shift link/shift cable
Spark plug(s)
Spark plug caps/high
tension cords
Water from the cooling
water pilot hole
Throttle link/Throttle
cable/Throttle pick-up
timing
Thermostat
Inspection or replacement as necessary
Inspection
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection or replacement as necessary
Replacement
Inspection or Adjustment
Inspection
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection, adjustment
or replacement as necessary
Inspection or replacement as necessary
Inspection or replacement as necessary
Inspection
Inspection, adjustment
or replacement as necessary
Inspection or replacement as necessary
Initial Every
20 hours
(3
months)
100
hours (1
year)
hours (3
years)
300
500
hours (5
years)
58
Page 65
Item Actions
Water inlet Inspection
Main switch/stop
switch/choke switch
Wire harness connections/Wire coupler connections
(Yamaha) Meter/gauge Inspection
EMU34451
Inspection or replacement as necessary
Inspection or replacement as necessary
Maintenance chart 2
Item Actions
Guide exhaust/exhaust
manifold
Inspection or replacement as necessary
Maintenance
Initial Every
20 hours
(3
months)
100
hours (1
year)
1000 hours
hours (3
years)
Every
300
500
hours (5
years)
59
Page 66
Maintenance
EMU28941
Greasing
Yamaha grease A (water resistant grease)
Yamaha grease D (corrosion resistant grease; for propeller shaft)
150F, 200F, L200F
EMU28955
Cleaning and adjusting spark plug
The spark plug is an important engine component and is easy to inspect. The condition
of the spark plug can indicate something
about the condition of the engine. For exam-
60
ZMU03912
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-
Page 67
move and inspect the spark plug because
T
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 replace the spark plug with another of the correct type.
1. Remove the spark plug caps from the
spark plugs.
2. Remove the spark plug. If electrode ero-
sion becomes excessive, or if carbon
and other deposits are excessive, you
should replace the spark plug with another of the correct type.
WARNING!
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.
[EWM00561]
Standard spark plug:
150FETO BR7HS-10
200FETO BR8HS-10
L200FETO BR8HS-10
3. Be sure to use the specified spark plug,
otherwise the engine may not operate
properly. Before fitting the spark plug,
measure the electrode gap with a wire
thickness gauge; adjust the gap to specification if necessary.
Maintenance
1. Spark plug gap
2. Spark plug I.D. mark (NGK)
3. Spark plug part number
Spark plug gap:
0.9–1.0 mm (0.035–0.039 in)
4. When fitting the plug, wipe off any dirt
from the threads, and then screw it in to
the correct torque.
Spark plug torque:
25.0 Nm (2.55 kgf-m, 18.4 ft-lb)
IP:
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 finger-tight. Have the spark plug adjusted to the
correct torque as soon as possible with a
torque-wrench.
EMU37450
Checking fuel filter
Check the fuel filter periodically. If any water
or foreign matter is found in the filter, clean or
replace it. For cleaning or replacement of the
fuel filter, consult your Yamaha dealer.
61
Page 68
Maintenance
T
ZMU06217
EMU29041
Inspecting idling speed
EWM00451
WARNING
●
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.
ECM00490
NOTICE
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 smoothly.
IP:
Correct idling speed inspection is only possible if the engine is fully warmed up. If not
warmed up fully, the idle speed will measure
higher than normal. If you have difficulty verifying the idle speed, or the idle speed requires adjustment, consult a Yamaha dealer
or other qualified mechanic.
2. Verify whether the idle speed is set to
specification. For idle speed specifications, see page 9.
EMU29050
Checking water in engine oil tank
Oil injection models
There is a water trap at the bottom of the engine oil tank. If water or foreign matter is visible in this trap, consult your Yamaha dealer.
2
1
ZMU01895
1. Water trap
2. Engine oil tank
EMU29112
Checking wiring and connectors
Check that each grounding wire is properly
●
secured.
●
Check that each connector is engaged securely.
ZMU03915
62
Page 69
EMU32111
Checking propeller
EWM01880
WARNING
You could be seriously injured if the engine accidentally starts when you are
near the propeller.
Before inspecting, removing, or install-
●
ing the propeller, place the shift control
in neutral, turn the main switch to “ ”
(off) and remove the key, and remove
the clip from the engine shut-off switch.
Turn off the battery cut-off switch if
your boat has one.
Do not use your hand to hold the propeller
when loosening or tightening the propeller
nut. Put a wood block between the anti-cavitation plate and the propeller to prevent the
propeller from turning.
Maintenance
Check the propeller shaft oil seal for dam-
●
age.
EMU30661
Removing propeller
EMU29197
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).
not use your hand to hold the propeller when loosening the propeller nut.
[EWM01890]
WARNING! Do
ZMU01897
Checkpoints
●
Check each of the propeller blades for
wear, erosion from cavitation or ventilation, or other damage.
●
Check the propeller shaft for damage.
●
Check the splines for wear or damage.
Check for fish line tangled around the pro-
●
peller shaft.
1. Cotter pin
2. Propeller nut
3. Washer
4. Spacer
5. Propeller
6. Thrust washer
3. Remove the propeller, washer (if
equipped), and thrust washer.
63
Page 70
Maintenance
T
EMU30671
Installing propeller
EMU29243
Spline models
EWM00770
WARNING
On counter rotation models, be sure to
use a propeller intended for counterclockwise rotation. These propellers are
identified with the letter “L” after the size
indication on the propeller. Otherwise the
boat could move in the opposite direction
from that expected.
ECM00500
NOTICE
Be sure to use a new cotter pin and bend
the ends over securely. Otherwise the
propeller could come off during operation and be lost.
1. Apply Yamaha marine grease or a corrosion resistant grease to the propeller
shaft.
2. Install the thrust washer and propeller
on the propeller shaft.
to install the thrust washer before installing the propeller, otherwise the
lower case and propeller boss could
be damaged.
[ECM01880]
3. Install the spacer and washer. Tighten
the propeller nut to the specified torque.
Propeller nut tightening torque:
55.0 Nm (5.61 kgf-m, 40.6 ft-lb)
4. Align the propeller nut with the propeller
shaft hole. Insert a new cotter pin in the
hole and bend the cotter pin ends.
TICE:
Do not reuse the cotter pin installed. Otherwise the propeller can
come off during operation.
NOTICE:
Be sure
[ECM01890]
NO-
IP:
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.
EMU29287
Changing gear oil
EWM00800
WARNING
●
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 accidentally falls.
1. Tilt the outboard motor so that the gear
oil drain screw is at the lowest point possible.
2. Place a suitable container under the
gear case.
3. Remove the gear oil drain screw and
gasket.
sive quantity of metal particles on the
magnetic gear oil drain screw, this
can indicate lower unit problem. Consult your Yamaha dealer.
NOTICE:
If there is an exces-
[ECM01900]
64
Page 71
T
T
2
1
ZMU01899
1. Gear oil drain screw
2. Oil level plug
IP:
If a magnetic gear oil drain screw is
●
equipped, remove all metal particles from
the screw before installing it.
Always use new gaskets. Do not reuse the
●
removed gaskets.
4. Remove the oil level plug and gasket to
allow the oil to drain completely.
TICE:
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 repair of the lower
unit seals.
[ECM00711]
IP:
For disposal of used oil, consult your
Yamaha dealer.
5. Put the outboard motor in a vertical position. Using a flexible or pressurized filling device, inject the gear oil into the
gear oil drain screw hole.
NO-
Maintenance
Recommended gear oil:
Hypoid gear oil SAE#90
Gear oil quantity:
150FETO 0.980 L
(1.036 US qt, 0.862 Imp.qt)
200FETO 0.980 L
(1.036 US qt, 0.862 Imp.qt)
L200FETO 0.870 L
(0.920 US qt, 0.766 Imp.qt)
ZMU01900
6. Put a new gasket on the oil level plug.
When the oil begins to flow out of the oil
level plug hole, insert and tighten the oil
level plug.
Tightening torque:
9 Nm (0.9 kgf-m, 6.6 ft-lb)
7. Put a new gasket on the gear oil drain
screw. Insert and tighten the gear oil
drain screw.
Tightening torque:
9 Nm (0.9 kgf-m, 6.6 ft-lb)
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
65
Page 72
Maintenance
T
Yamaha dealer for replacement of external
anodes.
ECM00720
NOTICE
Do not paint anodes, as this would render
them ineffective.
IP:
Inspect ground leads attached to external
anodes on equipped models. Consult a
Yamaha dealer for inspection and replacement of internal anodes attached to the power unit.
ZMU01901
near the battery:
●
Wear protective eye gear and rubber
gloves.
●
Do not smoke or bring any other source
of ignition near the battery.
Refer to page 11 for detailed safety information about batteries.
The procedure for checking the battery varies for different batteries. This procedure
contains typical checks that apply to many
batteries, but you should always refer to the
battery manufacturer’s instructions.
ECM01920
NOTICE
A poorly maintained battery will quickly
deteriorate.
1. Check the electrolyte level.
EMU29322
Checking battery (for electric start
models)
EWM01900
WARNING
Battery electrolytic fluid is poisonous
and caustic, and batteries generate explosive hydrogen gas. When working
66
ZMU03461
2. Check the battery’s charge. If your boat
is equipped with the digital speedometer, the voltmeter and low battery alert
functions will help you monitor the battery’s charge. If the battery needs charging, consult your Yamaha dealer.
3. Check the battery connections. They
should be clean, secure, and covered by
an insulating cover.
WARNING! Bad
connections can produce shorting or
arcing and cause an explosion.
[EWM01910]
Page 73
Maintenance
EMU35603
Connecting the battery
EWM00570
WARNING
Mount the battery holder securely in a
dry, well-ventilated, vibration-free location in the boat. Install a fully charged battery in the holder.
ECM01123
NOTICE
Reversal of the battery cables will damage the electrical parts.
1. Make sure the main switch (on applicable models) is “ ” (off) before working
on the battery.
2. Connect the red battery cable to the
POSITIVE (+) terminal first. Then connect the black battery cable to the NEGATIVE (-) terminal.
fuse to the isolator lead as shown in the
illustration. For the fuse size, be sure to
follow local regulations. For example, for
USA, the ABYC rules (E-11) should be
observed.
Single engine
3
2 1
4
6 5
7
ZMU05939
1. Red cable
2. Black cable
3. Battery
3. The electrical contacts of the battery and
cables must be clean and properly connected, or the battery will not start the
engine.
Connecting an accessory battery (optional)
1. If connecting an accessory battery, consult your Yamaha dealer about correct
wiring. It is recommendable to install the
1. Isolator lead with circuit protection
2. Red cable
3. Black cable
4. Fuse
5. Battery for accessories
6. Battery for starting
7. Negative connecting cable
67
Page 74
Maintenance
Twin engines
1
2
5
4
3
6
7 8 7
1. Starboard side engine
2. Port side engine
3. Red cable
4. Black cable
5. Isolator lead with circuit protection
6. Fuse
7. Battery for starting
8. Battery for accessories
9. Negative connecting cable
9
ZMU05941
3. Disconnect the positive cable(s) and remove the battery from the boat.
4. Clean, maintain, and store the battery
according to the manufacturer’s instructions.
34
EMU29371
Disconnecting the battery
1. Turn off the battery cut-off switch (if
equipped) and main switch.
they are left on, the electrical system
can be damaged.
2. Disconnect the negative cable(s) from
the negative (-) terminal.
ways disconnect all negative (-) cables first to avoid a short circuit and
damage to the electrical system.
[ECM01940]
68
[ECM01930]
NOTICE:
NOTICE:
If
Al-
Page 75
Trouble Recovery
EMU29427
Troubleshooting
A problem in the fuel, compression, or ignition systems can cause poor starting, loss of
power, or other problems. This section describes 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-alert 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 corroded?
A. Tighten battery cables and clean battery
terminals.
Q. Is fuse for electric start relay or electric circuit blown?
A. Check for cause of electric overload and
repair. Replace fuse with one of correct amperage.
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 41.
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 connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken wires.
Q. Are ignition parts faulty?
A. Have serviced by a Yamaha dealer.
Q. Is engine shut-off cord (lanyard) not attached?
A. Attach cord.
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.
69
Page 76
Trouble Recovery
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 alert system activated?
A. Find and correct cause of alert.
Q. Is spark plug gap incorrect?
A. Inspect and adjust as specified.
Q. Is ignition wiring damaged or poorly connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken wires.
Q. Is specified engine oil not being used?
A. Check and replace oil as specified.
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.
Alert 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 recommended type.
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?
70
Q. Is specified engine oil not being used?
A. Check and replace oil with specified type.
Q. Is engine oil contaminated or deteriorated?
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 malfunctioned?
A. Have serviced by a Yamaha dealer.
Page 77
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.
Trouble Recovery
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 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 outboard 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 alert system activated?
A. Find and correct cause of alert.
Q. Is boat bottom fouled with marine growth?
A. Clean boat bottom.
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 connected?
A. Check wires for wear or breaks. Tighten
all loose connections. Replace worn or broken 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. 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
Q. Is air vent screw closed?
A. Open the air vent screw.
Q. Is fuel pump damaged?
A. Have serviced by a Yamaha dealer.
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Trouble Recovery
T
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 recommended type.
Q. Is high pressure fuel pump drive belt broken?
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
EWM00870
WARNING
The outboard motor can be seriously
damaged by a collision while operating or
trailering. Damage could make the outboard motor unsafe to operate.
If the outboard motor hits an object in the water, follow the procedure below.
1. Stop the engine immediately.
2. Inspect the control system and all components for damage. Also inspect the
boat for damage.
3. Whether damage is found or not, return
to the nearest harbor slowly and carefully.
4. Have a Yamaha dealer inspect the outboard motor before operating it again.
EMU29452
Running single engine (twin engines)
When using only one engine in an emergency, be sure to keep the unused one tilted up
and operate the other engine at low speed.
ECM00370
NOTICE
If the boat is operated with one engine in
the water but not running, water may run
into the exhaust pipe due to wave action,
causing engine trouble.
IP:
When you are maneuvering at low speed,
such as near a dock, it is recommended that
both engines be running with one in neutral
gear if possible.
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Page 79
Trouble Recovery
trim and tilt unit, the engine can be tilted
manually.
1. Loosen the manual valve screw by turning it counterclockwise until it stops.
EMU29463
Replacing fuse
If the fuse has blown on an electric start
model, open the fuse holder and replace the
fuse with a new one of the proper amperage.
EWM00631
WARNING
Substituting an incorrect fuse or a piece
of wire could allow excessive current
flow. This could cause electric system
damage and a fire hazard.
1
2
ZMU03919
1. Fuse holder
2. Fuse (20 A, 30 A)
Consult your Yamaha dealer if the new fuse
immediately blows again.
EMU29524
Power trim and tilt will not operate
If the engine cannot be tilted up or down with
the power trim and tilt because of a discharged battery or a failure with the power
1
ZMU03464
1. Manual valve screw
2. Put the engine in the desired position,
then tighten the manual valve screw by
turning it clockwise.
EMU29533
Starter will not operate
If the starter mechanism does not operate
(the engine cannot be cranked with the starter), the engine can be started with an emergency starter rope.
EWM01022
WARNING
Use this procedure only in an emergen-
●
cy to return to the nearest port for repairs.
When the emergency starter rope is
●
used to start the engine, the start-ingear protection device does not operate. Make sure the remote control lever
is in neutral. Otherwise the boat could
unexpectedly start to move, which
could result in an accident.
Attach the engine shut-off cord to a se-
●
cure place on your clothing, or your
arm or leg while operating the boat.
Do not attach the cord to clothing that
●
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Page 80
Trouble Recovery
could tear loose. Do not route the cord
where it could become entangled, preventing it from functioning.
●
Avoid accidentally pulling the cord during normal operation. Loss of engine
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.
●
Make sure no one is standing behind
you when pulling the starter rope. It
could whip behind you and injure
someone.
An unguarded, rotating flywheel is very
●
dangerous. Keep loose clothing and
other objects away when starting the
engine. Use the emergency starter rope
only as instructed. Do not touch the flywheel or other moving parts when the
engine is running. Do not install the
starter mechanism or top cowling after
the engine is running.
Do not touch the ignition coil, spark
●
plug wire, spark plug cap, or other electrical components when starting or operating the motor. You could get an
electrical shock.
EMU29562
Emergency starting engine
1. Remove the top cowling.
2. Remove the start-in-gear protection cable from the starter, if equipped.
3. Remove the starter/flywheel cover after
removing the bolt(s).
ZMU03920
4. Prepare the engine for starting. For further information, see page 41. Be sure
the engine is in neutral and that the clip
is attached to the engine shut-off switch.
The main switch must be “ ” (on), if
equipped.
ZMU02334
ON
ON
OFF
START
OFF
ZMU04589
START
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ON STARTOFF
ZMU01906
5. If equipped the choke knob, pull out it
when the engine is cold. After the engine
starts, gradually return the choke knob
to its home position as the engine warms
up.
Trouble Recovery
and start the engine. Repeat if necessary.
EMU29671
Engine fails to operate
EMU29691
Ignition system malfunction
If the battery voltage is low or in the unlikely
event of an ignition system malfunction, the
engine speed may become erratic or the engine may stop. In such a situation, follow the
procedure below.
1. Remove the CDI unit cover or electrical
cover, if equipped.
ZMU03923
ZMU03921
6. Insert the knotted end of the emergency
starter rope into the notch in the flywheel
rotor and wind the rope several turns
around the flywheel clockwise.
ZMU03466
7. Give a strong pull straight out to crank
2. Disconnect the yellow cord (emergency
circuit) of the CDI unit to return to port.
EWM00350
WARNING
When the yellow cord is disconnected,
the idle and low speeds are slightly higher than normal. Use care when starting off
or stopping.
ECM00380
NOTICE
Follow this procedure only in an emergency and just long enough to return to
port for repairs.
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Trouble Recovery
1
ON STARTOFF
2
ZMU03924
1. CDI unit
2. Yellow cord
EMU29742
Low oil level alert activates
If the oil level is allowed to drop too low, the
red segment will appear on the oil level indicator, the buzzer will sound, and engine
speed will be limited to about 2000 r/min. If
this happens, a reserve amount of oil can be
pumped from the remote oil tank to the engine oil tank using the emergency switch.
EWM01050
WARNING
Be sure to stop the engine before performing this procedure.
ECM00901
NOTICE
If the emergency switch is held up too
●
long, too much oil will be pumped into
the engine oil tank, overflowing it. Release the switch when oil reaches the
upper level line on the engine oil tank.
●
Do not use this emergency procedure
unless the oil level-alert indicators are
working.
1. Remove the top cowling.
2. Turn on the main switch.
ZMU01906
3. Lift the emergency switch to pump reserve oil into the engine oil tank from the
remote oil tank.
1
ZMU03925
1. Emergency switch
12
1. Engine oil tank
2. Remote oil tank
4. After using the emergency switch, turn
off the main switch, then turn it back on.
This resets the alert system to normal
ZMU01908
76
Page 83
operation. The yellow segment will con-
T
tinue to be displayed on the oil level indicator.
5. Start the engine and return to the nearest port for more oil.
IP:
●
The maximum reserve oil capacity is 1500
cm3 (1.6 US qt, 1.31 Imp qt).
●
The oil-feed pump will not operate if the
engine is tilted up more than 35°. Put the
engine in the upright position (not tilted)
before using the emergency switch.
EMU33501
Treatment of submerged motor
If the outboard motor is submerged, immediately take it to a Yamaha dealer. Otherwise
some corrosion may begin almost immediately.
NOTICE:
outboard motor until it has been completely inspected.
Do not attempt to run the
[ECM00401]
Trouble Recovery
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YAMAHA MOTOR CO., LTD.
Printed in Japan
April 2008–0.1 × 1
!
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