Yamaha F150C, LF150C Owner's Manual
F150C
ZMU01690
Read this owner’s manual carefully before operating your outboard motor.
Important manual information
EMU25100
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.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
EWM00780
WARNING
Failure to follow WARNING instructions
could result in severe injury or death
machine operator, a bystander, or a person inspecting or repairing the outboard
motor.
to the
your machine and this manual. If there is any
question concerning this manual, please consult your Yamaha dealer.
NOTE:
The F150TRC, LF150TRC 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.
EMU25110
F150C, LF150C
OWNER’S MANUAL
©2003 by Yamaha Motor Corporation,
USA
1st edition, May 2003
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in Japan
P/N LIT-18626-05-62
ECM00700
CAUTION:
A CAUTION indicates special precautions
that must be taken to avoid damage to the
outboard motor.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current product
information available at the time of printing,
there may be minor discrepancies between
Table of contents
General information ...................... 1
Identification numbers record ...... 1
Outboard motor serial number ....... 1
Key number.................................... 1
Emission control information ....... 1
North American models.................. 1
Star labels ...................................... 2
Safety information ....................... 3
Important labels........................... 4
Warning labels................................ 4
Basic boating rules
(Rules of the road) ................... 4
Steering and sailing rules and
sound signals.............................. 5
Rules when encountering
vessels........................................ 5
Other special situations.................. 6
Fueling instructions ..................... 8
Gasoline ......................................... 9
Engine oil........................................ 9
Battery requirement..................... 9
Battery specifications ................... 10
Propeller selection..................... 10
Start-in-gear protection ............. 11
Basic components ...................... 12
Main components...................... 12
Remote control............................. 12
Remote control lever .................... 13
Neutral interlock trigger ................ 13
Neutral throttle lever ..................... 13
Free accelerator ........................... 14
Throttle friction adjuster................ 14
Engine stop lanyard switch........... 15
Main switch................................... 15
Power trim and tilt switch on
remote control........................... 16
Power trim and tilt switch on
bottom engine cowling .............. 16
Power trim and tilt switches
(twin binnacle type)................... 17
Trim tab with anode...................... 17
Tilt support lever for power trim
and tilt or hydro tilt model.......... 18
Top cowling lock lever
(pull up type) ............................. 18
Flushing device ............................ 18
Digital tachometer ........................ 18
Low oil pressure warning
indicator .................................... 19
Overheat warning indicator
(digital type) .............................. 19
Speedometer (digital type) ........... 19
Trim meter (digital type) ............... 20
Hour meter (digital type)............... 20
Trip meter ..................................... 21
Clock ............................................ 21
Fuel gauge ................................... 21
Fuel warning indicator .................. 22
Low battery voltage warning
indicator .................................... 22
Fuel management meter .............. 22
Fuel flow meter............................. 23
Fuel consumption meter............... 23
Fuel economy............................... 23
Twin-engine speed
synchronizer.............................. 24
Water separator warning
indicator .................................... 25
Warning system ........................ 25
Overheat warning
(twin engines)............................ 25
Low oil pressure warning.............. 26
Operation ..................................... 27
Installation................................. 27
Mounting the outboard motor ....... 27
Breaking in engine .................... 28
Procedure for 4-stroke models ..... 28
Preoperation checks ................. 29
Fuel .............................................. 29
Controls ........................................ 29
Engine .......................................... 29
Checking the engine oil level........ 29
Filling fuel.................................. 29
Operating engine ...................... 30
Table of contents
Feeding fuel.................................. 30
Starting engine ............................. 30
Warming up engine ................... 32
Manual start and electric start
models ...................................... 32
Shifting ...................................... 32
Forward (tiller handle and remote
control models) ......................... 33
Reverse........................................ 33
Stopping engine ........................ 33
Procedure..................................... 33
Trimming outboard motor.......... 34
Adjusting trim angle...................... 34
Adjusting boat trim........................ 35
Tilting up and down ................... 36
Procedure for tilting up ................. 36
Procedure for tilting down (power
trim and tilt/power tilt models) ... 37
Cruising in shallow water .......... 38
Power trim and tilt models /
power tilt models....................... 38
Cruising in other conditions ....... 39
Inspecting fuel filter ...................... 50
Cleaning fuel filter......................... 50
Inspecting idling speed................. 51
Changing engine oil...................... 52
Checking wiring and
connectors ................................ 53
Exhaust leakage........................... 53
Water leakage .............................. 53
Engine oil leakage ........................ 53
Checking power trim and tilt
system....................................... 53
Checking propeller ....................... 54
Removing the propeller ................ 55
Installing the propeller .................. 55
Changing gear oil ......................... 56
Inspecting and replacing
anode(s).................................... 57
Checking battery
(for electric start models) .......... 57
Connecting the battery ................. 58
Disconnecting the battery............. 59
Checking top cowling ................... 59
Coating the boat bottom ............... 60
Maintenance................................. 40
Specifications ............................ 40
Transporting and storing outboard
motor ...................................... 41
Storing outboard motor................. 41
Procedure..................................... 41
Lubrication
(except oil injection models)...... 43
Battery care.................................. 43
Flushing power unit ...................... 43
Cleaning the outboard motor........ 44
Checking painted surface of
motor......................................... 44
Periodic maintenance................ 45
Replacement parts ....................... 45
Maintenance Chart 1 .................... 46
Maintenance Chart 2 .................... 47
Greasing....................................... 48
Cleaning and adjusting spark
plug ........................................... 48
Checking fuel system ................... 49
Trouble Recovery........................ 61
Troubleshooting ........................ 61
Temporary action in
emergency ............................. 64
Impact damage............................. 64
Running single engine.................. 64
Replacing fuse.............................. 65
Power trim and tilt will not
operate...................................... 65
Treatment of submerged
motor...................................... 66
Procedure..................................... 66
Consumer information ............... 67
Important warranty information
for U.S.A. and Canada........... 67
Table of contents
YAMAHA MOTOR CORPORATION,
U.S.A. FOUR-STROKE
OUTBOARD MOTOR
THREE-YEAR LIMITED
WARRANTY........................... 69
IMPORTANT WARRANTY
INFORMATION IF YOU USE
YOUR YAMAHA OUTSIDE
U.S.A. OR CANADA .............. 71
EMU25170
Identification numbers record
EMU25180
Outboard motor serial number
The outboard motor serial number is stamped
on the label attached to the port side of the
clamp bracket or the upper part of the swivel
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
General information
1. Key number
EMU25220
Emission control information
EMU25230
North American models
This engine conforms to U.S. Environmental
Protection Agency (EPA) regulations for marine SI engines. See the label affixed to your
engine for details.
EMU25240
Approval label of emission control certificate
This label is attached to the bottom cowling.
New Technology; (4-stroke/HPDI) EM
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
General information
ZMU01699
EMU25260
Manufactured date label
This label is attached to the clamp bracket or
the swivel bracket.
EMU25280
One Star—Low Emission
The one-star label identifies engines that
meet the Air Resources Board’s 2001 exhaust emission standards. Engines meeting
these standards have 75% lower emissions
than conventional carbureted two-stroke engines. These engines are equivalent to the
U.S. EPA’s 2006 standards for marine engines.
EMU25270
Star labels
Your outboard motor is labeled with a California Air Resources Board (CARB) star label.
See below for a description of your particular
label.
ZMU01702
EMU25290
Two Stars—Very Low Emission
The two-star label identifies engines that meet
the Air Resources Board’s 2004 exhaust
emission standards. Engines meeting these
standards have 20% lower emissions than
One Star-Low-Emission engines.
ZMU01703
2
General information
EMU25300
Three Stars—Ultra Low Emission
The three-star label identifies engines that
meet the Air Resources Board’s 2008 exhaust emission standards. Engines meeting
these standards have 65% lower emissions
than One Star-Low-Emission engines.
ZMU01704
EMU25360
Safety information
● Before mounting or operating the outboard
motor, read this entire manual. Reading it
should give you an understanding of the
motor and its operation
● Before operating the boat, read any own-
er’s or operator’s manuals supplied with it
and all labels. Be sure you understand each
item before operating.
● Do not overpower the boat with this out-
board motor. Overpowering the boat could
result in loss of control. The rated power of
the outboard should be equal to or less than
the rated horsepower capacity of the boat.
If the rated horsepower capacity of the boat
is unknown, consult the dealer or boat manufacturer.
● Do not modify the outboard. Modifications
could make the motor unfit or unsafe to use.
● Never operate after drinking alcohol or tak-
ing drugs. About 50% of all boating fatalities
involve intoxication.
● Have an approved personal flotation device
(PFD) on board for every occupant. It is a
good idea to wear a PFD whenever boating. At a minimum, children and non-swimmers should always wear PFDs, and
everyone should wear PFDs when there
are potentially hazardous boating conditions.
● Gasoline is highly flammable, and its va-
pors are flammable and explosive. Handle
and store gasoline carefully. Make sure
there are no gas fumes or leaking fuel before starting the engine.
● 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.
● Check throttle, shift, and steering for proper
operation before starting the engine.
● Attach the engine stop switch lanyard cord
to a secure place on your clothing, or your
arm or leg while operating. If you accidentally leave the helm, the cord will pull from
the switch, stopping the engine.
● Know the marine laws and regulations
where you will be boating—and obey them.
For basic boating rules, see “Rules of the
road” on page 4.
● Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
● Tell someone where you are going: leave a
Float Plan with a responsible person. Be
sure to cancel the Float Plan when you return.
● Use common sense and good judgment
when boating. Know your abilities, and be
sure you understand how your boat han-
3
General information
dles under the different boating conditions
you may encounter. Operate within your
limits, and the limits of your boat. Always
operate at safe speeds, and keep a careful
watch for obstacles and other traffic.
● Always watch carefully for swimmers during
the engine operation.
● Stay away from swimming areas.
● When a swimmer is in the water near you
shift into neutral and shut off the engine.
Be informed about boating safety. Additional
publications and information can be obtained
from many organizations, including the following:
United States Coast Guard
Consumer Affairs Staff (G-BC)
Office of Boating, Public, and Consumer Affairs
U.S. Coast Guard Headquarters
Washington, D.C. 20593-0001
Boating Safety Hotline: 1-800-368-5647
National Marine Manufacturers Association (NMMA)
401 N. Michigan Ave.
Chicago, Il 60611
Marine Retailers Association of America
155 N. Michigan Ave.
Chicago, Il 60601
EMU25380
Important labels
EMU25391
Warning labels
EMU25401
Label
EWM01260
WARNING
● Be sure shift control is in neutral before
starting engine. (except 2HP)
● Do not touch or remove electrical parts
when starting or during operation.
● Keep hands, hair, and clothes away from
flywheel and other rotating parts while
engine is running.
EMU25411
Label
EWM01280
WARNING
● Use only a counterclockwise rotation
propeller with this engine.
● Counterclockwise propellers are
marked with a letter “L” after the size indication.
● The wrong type of propeller could cause
the boat to go in an unexpected direction, which could lead to accident.
EMU25500
Basic boating rules (Rules of
the road)
Just as there are rules which apply when you
are driving on streets and high ways, there
are waterway rules which apply when you are
driving your boat. These rules are used internationally, and are also enforced by the United States Coast Guard and local agencies.
You should be aware of these rules, and follow them whenever you encounter another
vessel on the water.
Several sets of rules prevail according to geographic location, but are all basically the same
as the International Rules of the Road. The
rules presented here in your Owner’s Manual
are condensed, and have been provided for
your convenience only. Consult your local
U.S. Coast Guard Auxiliary or Department of
4
General information
Motor Vehicles for a complete set of rules
governing the waters in which you will be using your boat.
EMU25510
Steering and sailing rules and sound
signals
Whenever two vessels on the water meet one
another, one vessel has the right-of-way; it is
called the “stand-on” vessel. The vessel
which does not have the right-of-way is called
the “give-way” or “burdened” vessel. These
rules determine which vessel has the right-ofway, and what each vessel should do.
Stand-on vessel
The vessel with the right-of-way has the duty
to continue its course and speed, except to
avoid an immediate collision. When you maintain your direction and speed, the other vessel
will be able to determine how best to avoid
you.
Give-way vessel
The vessel which does not have the right-ofway has the duty to take positive and timely
action to stay out of the way of the Stand-On
vessel. Normally, you should not cross in front
of the vessel with the right-of-way. You should
slow down or change directions briefly and
pass behind the other vessel. You should always move in such a way that the operator of
the other vessel can see what you are doing.
“The general prudential rule”
This rule is called Rule 2 in the International
Rules and says,
“In obeying and construing these rules due regard shall be had to all dangers of navigation
and collision, and to any special circumstances, which may render a departure from the
above rules necessary in order to avoid immediate danger.”
In other words, follow the standard rules except when a collision will occur unless both
vessels try to avoid each other. If that is the
case, both vessels become “Give-Way” ves-
sels.
EMU25520
Rules when encountering vessels
There are three main situations which you
may encounter with other vessels which could
lead to a collision unless the Steering Rules
are followed:
Meeting: (you are approaching another vessel head-on)
Crossing: (you are traveling across the other
vessel’s path)
Overtaking: (you are passing or being
passed by another vessel)
In the following illustration, your boat is in the
center. You should give the right-of-way to
any vessels shown in white area (you are the
Give-Way vessel). Any vessels in the shaded
area must yield to you (they are the Give-Way
vessels). Both you and the meeting vessel
must alter course to avoid each other.
Meeting
If you are meeting another power vessel head
on, and are close enough to run the risk of collision, neither of you has the right-of-way!
Both of you should alter course to avoid an accident. You should keep the other vessel on
5
General information
your port (left) side. This rule doesn’t apply if
both of you will clear one another if you continue on your set course and speed.
Crossing
When two power driven vessels are crossing
each other’s path close enough to run the risk
of collision, the vessel which has the other on
the starboard (right) side must keep out of the
way of the other. If the other vessel is on your
right, you must keep out of its way; you are the
Give-Way vessel. If the other vessel is on
your port (left) side, remember that you
should maintain course and direction, provided the other vessel gives you the right-of-way
as it should.
Overtaking
If you are passing another vessel, you are the
“Give-Way” vessel. This means that the other
vessel is expected to maintain its course and
speed. You must stay out of its way until you
are clear of it. Likewise, if another vessel is
passing you, you should maintain your speed
and direction so that the other vessel can
steer itself around you.
EMU25530
Other special situations
There are three other rules you should be
aware of when driving your boat around other
vessels.
Narrow channels and bends
When navigating in narrow channels, you
should keep to the right when it is safe and
practical to do so. If the operator of a powerdriven vessel is preparing to go around a
bend that may obstruct the view of other water
vessels, the operator should sound a prolonged blast on the whistle (4 to 6 seconds). If
another vessel is around the bend, it too
should sound the whistle. Even if no reply is
heard, however, the vessel should still proceed around the bend with caution. If you navigate such waters with your boat, you will
need to carry a portable air horn, available
from local marine supply stores.
Fishing vessel right-of-way
All vessels which are fishing with nets, lines or
trawls are considered to be “fishing vessels”
under the International Rules. Vessels with
trolling lines are not considered fishing vessels. Fishing vessels have the right-of-way regardless of position. Fishing vessels cannot,
however, impede the passage of other vessels in narrow channels.
Sailing vessel right-of-way
Sailing vessels should normally be given the
right-of-way. The exceptions to this are:
1. When the sailing vessel is overtaking the
power-driven vessel, the power-driven
vessel has the right-of-way.
2. Sailing vessels should keep clear of any
fishing vessel.
6
3. In a narrow channel, a sailing vessel
should not hamper the safe passage of a
power-driven vessel which can navigate
only in such a channel.
Reading buoys and other markers
The waters of the United states are marked
for safe navigation by the lateral system of
buoyage. Simply put, buoys and markers
have an arrangement of shapes, colors, numbers and lights to show which side of the buoy
a boater should pass on when navigating in a
particular direction. The markings on these
buoys are oriented from the perspective of being entered from seaward (the boater is going
towards the port). This means that red buoys
are passed on the starboard (right) side when
proceeding from open water into port, and
black buoys are to port (left) side. When navigating out of port, your position with respect to
the buoys should be reversed; red buoys
should be to port and black buoys to starboard.
Many bodies of water used by boaters are entirely within the boundaries of a particular
state. The Uniform State Waterway Marking
System has been devised for these waters.
This system uses buoys and signs with distinctive shapes and colors to show regulatory
or advisory information. These markers are
white with black letters and orange boarders.
They signify speed zones, restricted areas,
danger areas, and general information.
Remember, markings may vary by geographic location. Always consult local boating authorities before driving your boat in unfamiliar
waters.
General information
7
General information
EMU25540
Fueling instructions
EWM00010
WARNING
GASOLINE AND ITS VAPORS ARE HIGHLY FLAMMABLE AND EXPLOSIVE!
8
ZMU01708
● Do not smoke when refueling, and keep
away from sparks, flames, or other
sources of ignition.
● Stop engine before refueling.
● Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat.
General information
● Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
dry rags.
● Do not overfill the fuel tank.
● Tighten the filler cap securely after refu-
eling.
● If you should swallow some gasoline, in-
hale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical
attention.
● If any gasoline spills onto your skin, im-
mediately wash with soap and water.
Change clothing if gasoline spills on it.
● Touch the fuel nozzle to the filler open-
ing or funnel to help prevent electrostatic sparks.
ECM00010
CAUTION:
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign matter.
EMU25570
Gasoline
If knocking or pinging occurs, use a different
brand of gasoline or premium unleaded fuel.
EMU25680
Engine oil
Recommended engine oil:
4-stroke motor oil with a combination of
corresponding SAE and API as shown
in the chart
Engine oil quantity (excluding oil filter):
5.2 L (5.50 US qt) (4.58 Imp.qt)
ECM01050
CAUTION:
All 4-stroke engines are shipped from the
factory without engine oil.
Recommended gasoline:
Regular unleaded gasoline with a
minimum octane rating of 86 (Pump
Octane Number) = (R+M)/2
Gasohol
There are two types of gasohol: gasohol containing ethanol and that containing methanol.
Gasohol containing ethanol can be used if
ethanol content does not exceed 10% and the
fuel meets minimum octane ratings. Yamaha
does not recommended gasohol containing
methanol because it can cause fuel system
damage or engine performance problems.
ZMU01710
EMU25700
Battery requirement
ECM01060
CAUTION:
Do not use a battery that does not meet the
specified capacity. If a battery which does
not meet specifications is used, the elec-
9
General information
tric system could perform poorly or be
overloaded, causing electric system damage.
For electric start models, choose a battery
which meets the following specifications.
EMU25711
Battery specifications
Minimum cold cranking amps
(CCA/SAE):
512.0 A
Minimum marine cranking amps
(MCA/ABYC):
675.0 A
Minimum reserve capacity (RC/SAE):
182 minutes
NOTE:
The engine cannot be started if battery voltage is too low.
Yamaha dealers stock a range of propellers,
and can advise you and install a propeller on
your outboard that is best suited to your application.
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
EMU25740
Propeller selection
The performance of your outboard motor will
be critically affected by your choice of propeller, as an incorrect choice could adversely affect performance and could also seriously
damage the motor. Engine speed depends on
the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are fitted with propellers chosen to perform well over a range of
applications, but there may be uses where a
propeller with a different pitch would be more
appropriate. For a greater operating load, a
smaller-pitch propeller is more suitable as it
enables the correct engine speed to be maintained. Conversely, a larger-pitch propeller is
more suitable for a smaller operating load.
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
NOTE:
Select a propeller which will allow the engine
to reach the middle or upper half of the operating range at full throttle with the maximum
boat load. If operating conditions such as light
boat loads then allow the engine r/min to rise
above the maximum recommended range, reduce the throttle setting to maintain the engine in the proper operating range.
10
For instructions on propeller removal and installation, see page 54.
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.
General information
11
Basic components
EMU25791
Main components
NOTE:
* May not be exactly as shown; also may not be included as standard equipment on all models.
1. Top cowling
2. Top cowling lock lever(s)
3. Anti-cavitation plate
4. Trim tab (anode)
5. Propeller*
6. Cooling water inlet
7. Clamp bracket
8. Flushing device
9. Power trim and tilt switch
10.Remote control box (side mount type)*
11.Remote control box (binnacle mount type)*
12.Switch panel (for use with binnacle type)*
13.Digital speedometer*
14.Digital tachometer*
15.Fuel management meter*
12
EMU26180
Remote control
The remote control lever actuates both the
shifter and the throttle. The electrical switches
are mounted on the remote control box.
1. Power trim and tilt switch
Basic components
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch / choke switch
6. Engine stop lanyard switch
7. Throttle friction adjuster
1. Remote control lever
2. Power trim and tilt switch
3. Free accelerator
4. Throttle friction adjuster
5. Fully closed
6. Throttle
7. Fully open
1. Neutral “”
2. Forward “”
3. Reverse “”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
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
EMU26200
Neutral interlock trigger
To shift out of neutral, first pull the neutral interlock trigger up.
1. Neutral interlock trigger
EMU26210
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.
13
Basic components
NOTE:
The neutral throttle lever will operate only
when the remote control lever is in neutral.
The remote control lever will operate only
when the neutral throttle lever is in the closed
position.
1. Fully open
2. Fully closed
EMU26230
Free accelerator
To open the throttle without shifting into either
forward or reverse, push the free accelerator
button and move the remote control lever.
● 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.
EMU25970
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. To decrease resistance, turn the
adjuster counterclockwise.
EWM00030
WARNING
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to move throttle lever or grip,
which could result in an accident.
1. Fully open
2. Fully closed
3. Free accelerator
NOTE:
● The free accelerator button can only be
used when the remote control lever is in the
neutral position.
14
When constant speed is desired, tighten the
adjuster to maintain the desired throttle setting.
EMU25990
Engine stop lanyard switch
The lock plate must be attached to the engine
stop switch for the engine to run. The lanyard
should be attached to a secure place on the
operator’s clothing, or arm or leg. Should the
operator fall overboard or leave the helm, the
lanyard will pull out the lock plate, stopping ignition to the engine. This will prevent the boat
from running away under power.
EWM00120
WARNING
Basic components
NOTE:
The engine cannot be started with the lock
plate removed.
1. Lanyard
2. Lock plate
● Attach the engine stop switch lanyard to
a secure place on your clothing, or your
arm or leg while operating.
● Do not attach the lanyard to clothing
that could tear loose. Do not route the
lanyard where it could become entangled, preventing it from functioning.
● Avoid accidentally pulling the lanyard
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.
1. Lanyard
2. Lock plate
EMU26090
Main switch
The main switch controls the ignition system;
its operation is described below.
● “” (off)
With the main switch in the “” (off) posi-
tion, the electrical circuits are off, and the key
can be removed.
● “” (on)
With the main switch in the “” (on) position,
the electrical circuits are on, and the key cannot be removed.
● “” (start)
15
Basic components
With the main switch in the “” (start) po-
sition, the starter motor turns to start the engine. When the key is released, it returns
automatically to the “” (on) position.
down and trims it down. When the switch is released, the outboard motor will stop in its current position.
NOTE:
For instructions on using the power trim and
tilt switch, see pages 34 and 36.
EMU26150
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, 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.
EWM01030
WARNING
EMU26140
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 out-
board motor up, then tilts it up. Pressing the
switch “” (down) tilts the outboard motor
16
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.
NOTE:
For instructions on using the power trim and
tilt switch, see page 36.
Basic components
EMU26240
Trim tab with anode
The trim tab should be adjusted so that the
steering control can be turned to either the
right or left by applying the same amount of
force.
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.
EMU26161
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 out-
board motor up, 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.
If the boat tends to veer the left (port side),
turn the trim tab rear end to the port side “A” in
the figure. If the boat tends to veer the right
(starboard side), turn the trim tab end to the
starboard side “B” in the figure.
ECM00840
CAUTION:
The trim tab also serves as an anode to
protect the engine from electrochemical
corrosion. Never paint the trim tab as it will
become ineffective as an anode.
NOTE:
● On the dual engine control, the switch on
the remote control grip controls both outboard motors at the same time.
● For instructions on using the power trim and
tilt switches, see pages 34 and 36.
1. Trim tab
2. Bolt
3. Cap (if equipped)
17
Basic components
EMU26340
Tilt support lever for power trim and
tilt or hydro tilt model
To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp
bracket.
1. Tilt support lever
EMU26381
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.
EMU26460
Flushing device
This device is used to clean the cooling water
passages of the motor using a garden hose
and tap water.
NOTE:
For details on usage, see page 43.
1. Flushing device
18
EMU26490
Digital tachometer
The tachometer shows the engine speed and
has the following functions.
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