Yamaha F250HP V6, F250HP User Manual
OWNER’S MANUAL
F250
LF250
U.S.A.Edition
LIT-18626-07-16
6P2-28199-13
ZMU01690
Read this owner’s manual carefully before operating your outboard motor.
Important manual information
EMU31280
To the owner
Thank you for choosing a Yamaha outboard
motor. This Owner’s Manual contains 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.
ECM00700
CAUTION:
A CAUTION indicates special precautions
that must be taken to avoid damage to 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 F250TR, LF250TR 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
F250, LF250
OWNER’S MANUAL
©2006 by Yamaha Motor Corporation,
USA
1st edition, March 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Corporation, USA
is expressly prohibited.
Printed in Japan
P/N LIT-18626-07-16
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) ....................... 5
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....................... 10
Battery specifications ....................... 10
Propeller selection......................... 10
Start-in-gear protection ................. 11
Basic components .......................... 12
Main components .......................... 12
Remote control................................. 13
Remote control lever ........................ 14
Free accelerator ............................... 14
Throttle friction adjuster .................... 15
Engine stop lanyard switch............... 15
Main switch....................................... 16
Power trim and tilt switch on remote
control or tiller handle.................... 16
Power trim and tilt switch on bottom
engine cowling .............................. 17
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) ................................. 19
Flushing device ................................ 19
Water separator................................ 19
Digital tachometer ............................ 20
Low oil pressure warning indicator... 20
Overheat warning indicator
(digital type) .................................. 20
Speedometer (digital type) ............... 21
Trim meter (digital type) ................... 21
Hour meter (digital type)................... 22
Trip meter ......................................... 22
Clock ................................................ 22
Fuel gauge ....................................... 23
Fuel warning indicator ...................... 23
Low battery voltage warning
indicator ........................................ 23
Fuel management meter .................. 24
Fuel flow meter................................. 24
Fuel consumption meter................... 25
Fuel economy................................... 25
Twin-engine speed synchronizer...... 26
Water separator warning indicator ... 26
Command link multifunction
meters ........................................... 26
Tachometer unit ............................... 27
Speed & fuel meter unit.................... 30
Speedometer unit............................. 31
Fuel management meter .................. 32
Warning system ............................ 32
Overheat warning (twin engines)...... 32
Low oil pressure warning .................. 33
Operation ......................................... 34
Installation..................................... 34
Mounting the outboard motor ........... 34
Breaking in engine ........................ 35
Procedure for 4-stroke models ......... 35
Preoperation checks ..................... 35
Fuel .................................................. 36
Controls ............................................ 36
Stop switches ................................... 36
Engine .............................................. 36
Checking the engine oil level............ 36
Filling fuel...................................... 36
Ring Free Fuel Additive.................... 36
Table of contents
Operating engine........................... 37
Priming fuel system.......................... 37
Starting engine ................................. 37
Warming up engine ....................... 39
Electric start models......................... 39
Shifting .......................................... 39
Braking .......................................... 40
Stopping engine ............................ 40
Procedure......................................... 40
Trimming outboard motor .............. 41
Adjusting trim angle.......................... 41
Adjusting boat trim............................ 42
Tilting up and down ....................... 43
Procedure for tilting up
(power trim and tilt models /
power tilt models).......................... 43
Procedure for tilting down
(power trim and tilt models /
power tilt models).......................... 45
Cruising in shallow water .............. 45
Power trim and tilt models /
power tilt models........................... 45
Cruising in other conditions........... 46
Maintenance..................................... 47
Specifications ................................ 47
Transporting and storing outboard
motor .......................................... 48
Storing outboard motor..................... 48
Procedure......................................... 49
Lubrication........................................ 49
Cleaning and anticorrosion
measures ...................................... 49
Battery care...................................... 49
Flushing power unit .......................... 50
Cleaning the outboard motor ............ 51
Checking painted surface of motor... 51
Periodic maintenance.................... 51
Replacement parts ........................... 52
Maintenance chart............................ 52
Maintenance chart (additional) ......... 53
Greasing........................................... 54
Cleaning and adjusting spark plug ... 54
Checking fuel system ....................... 56
Changing engine oil.......................... 56
Checking wiring and connectors ...... 59
Exhaust leakage............................... 59
Water leakage .................................. 59
Engine oil leakage............................ 59
Checking power trim and tilt
system........................................... 60
Checking propeller ........................... 61
Removing the propeller .................... 62
Installing the Propeller...................... 62
Changing gear oil ............................. 63
Inspecting and replacing anode(s) ... 64
Checking battery
(for electric start models) .............. 65
Connecting the battery ..................... 66
Disconnecting the battery................. 67
Checking top cowling ....................... 67
Coating the boat bottom ................... 67
Trouble Recovery............................ 68
Troubleshooting ............................ 68
Temporary action in emergency ... 71
Impact damage................................. 71
Running single engine...................... 71
Replacing fuse.................................. 72
Power trim and tilt / power tilt will
not operate.................................... 73
Water separator warning indicator
blinks while cruising ...................... 73
Treatment of submerged motor .... 75
Procedure......................................... 75
Consumer information ................... 76
Important warranty information for
U.S.A. and Canada .................... 76
YAMAHA MOTOR
CORPORATION, U.S.A.
FOUR-STROKE OUTBOARD
MOTOR THREE-YEAR
LIMITED WARRANTY ............... 78
Table of contents
IMPORTANT WARRANTY
INFORMATION IF YOU USE
YOUR YAMAHA OUTSIDE
THE USA OR CANADA ............. 80
EMU25170
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is stamped
on the label attached to the port side of the
clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is stolen.
1. Outboard motor serial number location
General information
1. Key number
EMU25221
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.
EMU31560
Approval label of emission control certificate
This label is attached to the bottom cowling.
New Technology; (4-stroke) MFI
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. Approval label location
1
General information
EMU25262
Manufactured date label
This label is attached to the clamp bracket or
the swivel bracket.
1. Manufactured date label location
Manufactured:
ZMU04346
EMU25272
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.
1. Star labels location
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.
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.
2
ZMU01703
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
EMU25362
Safety information
● Before mounting or operating the outboard
motor, read this entire manual. Reading it
should give you an understanding of the
motor and its operation.
● Before operating the boat, read any own-
er’s or operator’s manuals supplied with it
and all labels. Be sure you understand each
item before operating.
● Do not overpower the boat with this out-
board motor. Overpowering the boat could
result in loss of control. The rated power of
the outboard should be equal to or less than
General information
the rated horsepower capacity of the boat.
If the rated horsepower capacity of the boat
is unknown, consult the dealer or boat manufacturer.
● Do not modify the outboard. Modifications
could make the motor unfit or unsafe to use.
● Incorrect propeller selection and incorrect
use may not only cause engine damage,
but also adversely affect fuel consumption.
Consult your dealer for correct use.
● Never operate after drinking alcohol or tak-
ing drugs. About 50% of all boating 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.
3
General information
● Know the marine laws and regulations
where you will be boating—and obey them.
For basic boating rules, see “Rules of the
road” on page 5.
● Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
● Tell someone where you are going: leave a
Float Plan with a responsible person. Be
sure to cancel the Float Plan when you return.
● Use common sense and good judgment
when boating. Know your abilities, and be
sure you understand how your boat handles 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.
● Do not illegally discard empty containers
used to replace or replenish oil. For the correct processing of empty containers, consult the dealer where you purchased the oil.
● When replacing oils used to lubricate the
product (engine or gear oil), be sure to wipe
away any spilt oil. Never pour oil without using a funnel or similar device. If necessary,
verify the necessary replacement procedure with the dealer.
● Never illegally discard (dump) the product.
Yamaha recommends consulting the deal-
er on discarding the product.
Be informed about boating safety. Additional
publications and information can be obtained
from many organizations, including the 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
EMU25382
Important labels
EMU25395
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.
4
General information
EMU25413
Label (counter rotation models)
EWM01281
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 an 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
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)
5
General information
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
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
6
General information
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.
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.
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 gaso-
line 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 electrostat-
ic sparks.
ECM00010
CAUTION:
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign matter.
EMU30700
Gasoline
EMU31440
Engine oil
Recommended engine oil:
YAMALUBE 4-M FC-W oil or 4-stroke
motor oil with a combination of the following SAE and API oil classifications
Engine oil type SAE:
10W-30 or 10W-40
Engine oil grade API:
SE, SF, SG, SH, SJ, SL
Engine oil quantity (excluding oil filter):
5.6 L (5.92 US qt) (4.93 Imp.qt)
NOTE:
If the recommended engine oil grades are not
available, select an alternative from the following chart according to the average temperatures in your area.
Recommended gasoline:
Premium unleaded gasoline with a
minimum octane rating of 89 (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.
ECM01050
CAUTION:
All 4-stroke engines are shipped from the
factory without engine oil.
9
General information
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 electric 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.
EMU25742
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.
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.
x
-
123
ZMU04607
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 61.
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
EMU25799
Main components
NOTE:
* May not be exactly as shown; also may not be included as standard equipment on all models.
1. Top cowling
2. Anti-cavitation plate
3. Trim tab (anode)
4. Propeller*
5. Cooling water inlet
6. Clamp bracket
7. Top cowling lock lever(s)
8. Water separator
9. Power trim and tilt switch
10.Flushing device
11.Tilt support lever
12.Remote control box (binnacle mount type)*
13.Switch panel (for use with binnacle type)*
14.Remote control box (binnacle mount type)*
15.Switch panel (for use with binnacle type)*
16.Digital speedometer*
12
17.Digital tachometer*
18.Fuel management meter*
Basic components
1
4
1. Tachometer unit (Square type)*
2. Tachometer unit (Round type)*
3. Speedometer unit (Square type)*
4. Speed & fuel meter unit (Square type)*
5. Speed & fuel meter unit (Round type)*
6. Fuel management meter (Square type)*
EMU26180
2
5
Remote control
The remote control lever actuates both the
shifter and the throttle. The electrical switches
are mounted on the remote control box.
3
6
1
2
3
1. Power trim and tilt switch
2. Remote control lever
3. Free accelerator
4. Throttle friction adjuster
ZMU05429
4
ZMU04572
13
Basic components
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.
N
F
2
6
7
1. Neutral “”
2. Forward “”
3. Reverse “”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
1
4
R
4
3
6
5
5
7
ZMU04573
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.
N
2
3
1
ZMU04576
1. Fully open
2. Fully closed
3. Free accelerator
2
3
1
ZMU04575
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.
● 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 auto-
14
Basic components
matically to its set position. The remote control will then engage forward and reverse
normally.
EMU25971
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.
EWM00031
WARNING
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to move the remote control lever
or throttle grip, which could result in an
accident.
ZMU04563
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
● 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.
ZMU04646
NOTE:
The engine cannot be started with the lock
plate removed.
15
Basic components
2
1
ZMU04565
1. Lanyard
2. Lock plate
ON
ON
OFF
OFF
START
START
2
1
ZMU04564
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)
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.
OFF
ON
OFF
START
EMU26141
Power trim and tilt switch on remote
control or tiller handle
The power trim and tilt system adjusts the outboard motor angle in relation to the transom.
Pressing 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.
NOTE:
For instructions on using the power trim and
tilt switch, see pages 41 and 43.
START
ON
OFF
START
ZMU04567
ZMU04566
ON
16
Basic components
UP
DN
ZMU03938
EMU26151
Power trim and tilt switch on bottom
engine cowling
The power trim and tilt switch is located on the
side of the bottom engine cowling. 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
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 43.
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.
1
DN
UP
ZMU04601
1. Power trim and tilt switch
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 41 and 43.
EMU26241
Trim tab with anode
The trim tab should be adjusted so that the
steering control can be turned to either the
right or left by applying the same amount of
force.
17
Basic components
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.
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.
3. Cap
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. Trim tab
2. Bolt
18
Basic components
EMU31420
Top cowling lock lever (pull up type)
To remove the top cowling, pull up the lock lever(s) and lift off the cowling. To install the top
cowling, place it in its original position, and
then move the lever(s) downward to lock it in
place.
NOTE:
● When installing the cowling, check to be
sure it fits properly in the rubber seal.
● Be sure to check that the gap between the
top cowling and the bottom cowling is even
all around the cowling. If the top cowling is
loose or the gap is not even, reinstall the
cowling.
NOTE:
For details on usage, see page 50.
1. Flushing device
EMU31702
Water separator
This engine has a combination fuel filter/water
separator and associated warning system. If
water separated from the fuel exceeds a specific volume, the warning device will activate.
EMU26460
Flushing device
This device is used to clean the cooling water
passages of the motor using a garden hose
and tap water.
Activation of warning device
19
Basic components
● The water separator warning indicator will
blink.
● The buzzer will sound intermittently only
when the gear shift is in neutral.
● If the warning system has activated, stop
the engine and consult a Yamaha dealer
immediately.
EMU31410
Digital tachometer
The tachometer shows the engine speed and
has the following functions.
NOTE:
All segments of the display will light momentarily after the main switch is turned on and
will return to normal thereafter.
1
2
3
5
6
1. Tachometer
2. Trim meter
3. Hour meter
4. Low oil pressure warning indicator
5. Overheat warning indicator
6. Set button
7. Mode button
NOTE:
The water separator warning indicator and
engine trouble warning indicator on the digital
tachometer do not operate for this engine.
EMU26522
Low oil pressure warning indicator
If oil pressure drops too low, the warning indicator will start to blink. For further information,
see page 32.
7
ZMU01840
4
ECM00020
CAUTION:
● Do not continue to run the engine if the
low oil pressure warning indicator is on
and the engine oil level is lower. Serious
engine damage will occur.
● The low oil pressure warning indicator
does not indicate the engine oil level.
Use the oil dipstick to check the remaining oil quantity. For further information,
see page 36.
1
ZMU01736
1. Low oil pressure warning indicator
EMU26581
Overheat warning indicator (digital
type)
If the engine temperature rises too high, the
warning indicator will start to blink. For further
information on reading the indicator, see page
32.
ECM00050
CAUTION:
Do not continue to run the engine if the
overheat warning indicator is on. Serious
engine damage will occur.
20
1
ZMU01737
1. Overheat warning indicator
EMU26600
Speedometer (digital type)
This gauge shows the boat speed.
1. Speedometer
2. Fuel gauge
3. Trip meter/clock/voltmeter
4. Warning indicator(s)
NOTE:
After the main switch is first turned on, all segments of the display come on as a test. After
a few seconds, the gauge will change to normal operation. Watch the gauge when turning
on the main switch to make sure all segments
come on.
Basic components
NOTE:
The speedometer displays km/h, mph, or
knots, according to operator preference. Select the desired unit of measurement by setting the selector switch on the back of the
gauge. See the illustration for settings.
1. Cap
2. Selector switch (for speed unit)
3. Selector switch (for fuel sensor)
EMU26620
Trim meter (digital type)
This meter shows the trim angle of your outboard motor.
NOTE:
● Memorize the trim angles that work best for
your boat under different conditions. Adjust
the trim angle to the desired using the power trim and tilt switch.
● If the trim angle of your motor exceeds the
trim operating range, the top segment on
the trim meter display will blink.
21
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