Yamaha F100D User manual

OWNER’S MANUAL
F80B
F100D
6D7-28199-72-E0
U6D772E0.book Page 1 Monday, March 13, 2006 9:21 AM

Read this owner’s manual carefully before operating your outboard motor.
U6D772E0.book Page 1 Monday, March 13, 2006 9:21 AM

Important manual information
EMU25101
To the owner
Thank you for choosing a Yamaha outboard
motor. This Owner’s Manual contains infor-
mation needed for proper operation, mainte-
nance and care. A thorough understanding of
these simple instructions will help you 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 AT-
TENTION! BECOME ALERT! YOUR SAFE-
TY IS INVOLVED!
WARNING
EWM00780
Failure to follow WARNING instructions
could result in severe injury or death to the
machine operator, a bystander, or a per-
son inspecting or repairing the outboard
motor.
CAUTION:
ECM00700
A CAUTION indicates special precautions
that must be taken to avoid damage to the
outboard motor.
NOTE:
A NOTE provides key information to make
procedures easier or clearer.
Yamaha continually seeks advancements in
product design and quality. Therefore, while
this manual contains the most current product
information available at the time of printing,
there may be minor discrepancies between
your machine and this manual. If there is any
question concerning this manual, please con-
sult your Yamaha dealer.
To ensure long product life, Yamaha recom-
mends that you use the product and perform
the specified periodic inspections and mainte-
nance by correctly following the instructions in
the owner’s manual. Note that if you do not
follow these instructions, not only may the
product break down, but the warranty will also
be voided.
Some countries have laws or regulations re-
stricting 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 war-
ranty may not apply in certain regions. When
planning to take the product to another coun-
try, consult the dealer where the product was
purchased for further information.
If the product was purchased used, please
consult your closest dealer for customer re-
registration, and to be eligible for the specified
services.
NOTE:
The F80BET, F100DET and the standard ac-
cessories are used as a base for the explana-
tions and illustrations in this manual.
Therefore some items may not apply to every
model.
U6D772E0.book Page 1 Monday, March 13, 2006 9:21 AM

Important manual information
EMU25120
F80B, F100D
OWNER’S MANUAL
©2006 by Yamaha Motor Co., Ltd.
1st Edition, February 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd.
is expressly prohibited.
Printed in Japan
U6D772E0.book Page 2 Monday, March 13, 2006 9:21 AM

Table of contents
General information .......................... 1
Identification numbers record .......... 1
Outboard motor serial number ........... 1
Key number........................................ 1
EC label........................................... 1
Safety information ........................... 2
Important labels............................... 3
Warning labels.................................... 3
Fueling instructions ......................... 3
Gasoline ............................................. 4
Engine oil............................................ 4
Battery requirement......................... 4
Battery specifications ......................... 4
Propeller selection........................... 5
Start-in-gear protection ................... 5
Basic components ............................ 7
Main components............................ 7
Fuel tank............................................. 8
Fuel joint............................................. 8
Fuel gauge ......................................... 9
Fuel tank cap...................................... 9
Air vent screw..................................... 9
Remote control ................................... 9
Remote control lever .......................... 9
Neutral interlock trigger ...................... 9
Neutral throttle lever ........................... 9
Tiller handle...................................... 10
Gear shift lever................................. 10
Throttle grip ...................................... 10
Throttle indicator............................... 10
Throttle friction adjuster.................... 11
Engine stop lanyard switch............... 11
Engine stop button ........................... 12
Main switch....................................... 12
Power trim and tilt switch on remote
control or tiller handle.................... 13
Power trim and tilt switch on bottom
engine cowling .............................. 13
Variable trolling RPM switches......... 13
Trim tab with anode.......................... 14
Tilt support lever for power trim and
tilt or hydro tilt model..................... 14
Top cowling lock lever
(pull up type) ................................. 15
Flushing device ................................ 15
Water separator................................ 15
Warning indicator ............................. 16
Digital tachometer ............................ 16
Low oil pressure warning indicator ... 16
Overheat warning indicator
(digital type) .................................. 17
Speedometer (digital type) ............... 17
Trim meter (digital type) ................... 17
Hour meter (digital type)................... 18
Trip meter ......................................... 18
Clock ................................................ 18
Fuel gauge ....................................... 19
Fuel warning indicator ...................... 19
Low battery voltage warning
indicator ........................................ 19
6Y8 Multifunction meters.................. 20
Tachometer unit ............................... 20
Speed & fuel meter unit.................... 23
Speedometer unit ............................. 24
Fuel management meter .................. 25
Warning system ............................ 26
Overheat warning ............................. 26
Low oil pressure warning.................. 26
Operation ......................................... 28
Installation..................................... 28
Mounting the outboard motor ........... 28
Breaking in engine ........................ 29
Procedure for 4-stroke models ......... 29
Preoperation checks ..................... 29
Fuel .................................................. 29
Controls ............................................ 30
Engine .............................................. 30
Checking the engine oil level............ 30
Filling fuel...................................... 30
Operating engine .......................... 31
Feeding fuel (portable tank) ............. 31
Starting engine ................................. 32
Warming up engine....................... 34
Electric start models ......................... 34
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Table of contents
Shifting .......................................... 35
Forward (tiller handle and remote
control models) ............................. 35
Reverse (automatic reverse lock
and power trim and tilt models)..... 36
Trolling .......................................... 36
Adjusting trolling speed .................... 36
Stopping engine ............................ 37
Procedure......................................... 37
Trimming outboard motor.............. 37
Adjusting trim angle.......................... 38
Adjusting boat trim............................ 39
Tilting up and down ....................... 40
Procedure for tilting up (power trim
and tilt models / power tilt
models) ......................................... 40
Procedure for tilting down (power
trim and tilt models / power tilt
models) ......................................... 41
Cruising in shallow water .............. 42
Power trim and tilt models / power
tilt models...................................... 42
Cruising in other conditions........... 43
Maintenance..................................... 44
Specifications ................................ 44
Transporting and storing outboard
motor .......................................... 45
Storing outboard motor..................... 45
Procedure......................................... 46
Lubrication........................................ 47
Battery care ...................................... 47
Flushing power unit .......................... 48
Cleaning the outboard motor............ 49
Checking painted surface of motor... 49
Periodic maintenance.................... 49
Replacement parts ........................... 49
Maintenance chart............................ 50
Maintenance chart (additional) ......... 51
Greasing........................................... 52
Cleaning and adjusting spark plug ... 52
Checking fuel system ....................... 53
Changing engine oil.......................... 54
Checking wiring and connectors ...... 55
Exhaust leakage............................... 56
Water leakage .................................. 56
Engine oil leakage ............................ 56
Checking power trim and tilt / power
tilt system ...................................... 56
Checking propeller ........................... 56
Removing the propeller .................... 57
Installing the Propeller...................... 57
Changing gear oil ............................. 58
Cleaning fuel tank............................. 59
Inspecting and replacing anode(s) ... 60
Checking battery (for electric start
models) ......................................... 60
Connecting the battery ..................... 61
Disconnecting the battery ................. 61
Checking top cowling ....................... 61
Coating the boat bottom ................... 62
Trouble Recovery............................ 63
Troubleshooting ............................ 63
Temporary action in emergency ... 66
Impact damage................................. 66
Replacing fuse.................................. 66
Power trim and tilt / power tilt will not
operate.......................................... 67
Water separator warning indicator
blinks while cruising ...................... 67
Starter will not operate ..................... 69
Emergency starting engine............... 70
Treatment of submerged motor .... 71
Procedure......................................... 71
U6D772E0.book Page 2 Monday, March 13, 2006 9:21 AM

General information
1
EMU25170
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is stamped
on the label attached to the port side of the
clamp bracket.
Record your outboard motor serial number in
the spaces provided to assist you in ordering
spare parts from your Yamaha dealer or for
reference in case your outboard motor is sto-
len.
EMU25190
Key number
If a main key switch is equipped with the mo-
tor, the key identification number is stamped
on your key as shown in the illustration.
Record this number in the space provided for
reference in case you need a new key.
EMU25202
EC label
Engines affixed with this label conform to cer-
tain portions of the European Parliament di-
rective relating to machinery. Refer to the
label and the EC Declaration of Conformity for
more details.
1. Outboard motor serial number location
1
ZMU04214
1. Key number
1. EC label location
U6D772E0.book Page 1 Monday, March 13, 2006 9:21 AM

General information
2
EMU25371
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 man-
ufacturer.
●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 boat-
ing. At a minimum, children and non-swim-
mers should always wear PFDs, and
everyone should wear PFDs when there
are potentially hazardous boating condi-
tions.
●Gasoline is highly flammable, and its va-
pors are flammable and explosive. Handle
and store gasoline carefully. Make sure
there are no gas fumes or leaking fuel be-
fore starting the engine.
●This product emits exhaust gases which
contain carbon monoxide, a colorless,
odorless gas which may cause brain dam-
age or death when inhaled. Symptoms in-
clude nausea, dizziness, and drowsiness.
Keep cockpit and cabin areas well ventilat-
ed. Avoid blocking exhaust outlets.
●Check throttle, shift, and steering for proper
operation before starting the engine.
●Attach the engine stop switch lanyard to a
secure place on your clothing, or your arm
or leg while operating. If you accidentally
leave the helm, the lanyard will pull from the
switch, stopping the engine.
●Know the marine laws and regulations
where you will be boating - and obey them.
●Stay informed about the weather. Check
weather forecasts before boating. Avoid
boating in hazardous weather.
●Tell someone where you are going: leave a
Float Plan with a responsible person. Be
sure to cancel the Float Plan when you re-
turn.
●Use common sense and good judgment
when boating. Know your abilities, and be
sure you understand how your boat han-
dles under the different boating conditions
you may encounter. Operate within your
limits, and the limits of your boat. Always
operate at safe speeds, and keep a careful
watch for obstacles and other traffic.
ZMU01696
U6D772E0.book Page 2 Monday, March 13, 2006 9:21 AM

General information
3
●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 cor-
rect processing of empty containers, con-
sult 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 us-
ing a funnel or similar device. If necessary,
verify the necessary replacement proce-
dure with the dealer.
●Never illegally discard (dump) the product.
Yamaha recommends consulting the deal-
er on discarding the product.
EMU25382
Important labels
EMU25395
Warning labels
EMU25401
Label
WARNING
EWM01260
●Be sure shift control is in neutral before
starting engine. (except 2HP)
●Do not touch or remove electrical parts
when starting or during operation.
●Keep hands, hair, and clothes away from
flywheel and other rotating parts while
engine is running.
EMU25540
Fueling instructions
WARNING
EWM00010
GASOLINE AND ITS VAPORS ARE HIGH-
LY FLAMMABLE AND EXPLOSIVE!
●Do not smoke when refueling, and keep
away from sparks, flames, or other
sources of ignition.
●Stop engine before refueling.
●Refuel in a well-ventilated area. Refuel
portable fuel tanks off the boat.
●Take care not to spill gasoline. If gaso-
line spills, wipe it up immediately with
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.
CAUTION:
ECM00010
Use only new clean gasoline which has
been stored in clean containers and is not
contaminated with water or foreign matter.
U6D772E0.book Page 3 Monday, March 13, 2006 9:21 AM

General information
4
EMU25580
Gasoline
If knocking or pinging occurs, use a different
brand of gasoline or premium unleaded fuel.
EMU25683
Engine oil
NOTE:
If the recommended engine oil grades are not
available, select an alternative from the fol-
lowing chart according to the average temper-
atures in your area.
CAUTION:
ECM01050
All 4-stroke engines are shipped from the
factory without engine oil.
EMU25700
Battery requirement
CAUTION:
ECM01060
Do not use a battery that does not meet the
specified capacity. If a battery which does
not meet specifications is used, the elec-
tric system could perform poorly or be
overloaded, causing electric system dam-
age.
For electric start models, choose a battery
which meets the following specifications.
EMU25720
Battery specifications
NOTE:
The engine cannot be started if battery volt-
age is too low.
Recommended gasoline:
Regular unleaded gasoline with a mini-
mum octane rating of 90 (Research
Octane Number).
Recommended engine oil:
4-stroke motor oil with a combination of
the following SAE and API oil classifi-
cations
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):
4.3 L (4.55 US qt) (3.78 Imp.qt)
Minimum cold cranking amps (CCA/EN):
430.0 A
Minimum rated capacity (20HR/IEC):
70.0 Ah
ZMU01710
U6D772E0.book Page 4 Monday, March 13, 2006 9:21 AM

General information
5
EMU25742
Propeller selection
The performance of your outboard motor will
be critically affected by your choice of propel-
ler, as an incorrect choice could adversely af-
fect performance and could also seriously
damage the motor. Engine speed depends on
the propeller size and boat load. If engine
speed is too high or too low for good engine
performance, this will have an adverse effect
on the engine.
Yamaha outboard motors are fitted with pro-
pellers chosen to perform well over a range of
applications, but there may be uses where a
propeller with a different pitch would be more
appropriate. For a greater operating load, a
smaller-pitch propeller is more suitable as it
enables the correct engine speed to be main-
tained. 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 appli-
cation.
NOTE:
Select a propeller which will allow the engine
to reach the middle or upper half of the oper-
ating range at full throttle with the maximum
boat load. If operating conditions such as light
boat loads then allow the engine r/min to rise
above the maximum recommended range, re-
duce the throttle setting to maintain the en-
gine in the proper operating range.
For instructions on propeller removal and in-
stallation, see page 56.
EMU25760
Start-in-gear protection
Yamaha outboard motors affixed with the pic-
tured label or Yamaha-approved remote con-
trol 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 en-
gine.
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04606
-
x
123
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
ZMU04607
-
x
123
U6D772E0.book Page 5 Monday, March 13, 2006 9:21 AM

General information
6
1. Start-in-gear protection label
ZMU01713
1
U6D772E0.book Page 6 Monday, March 13, 2006 9:21 AM

Basic components
7
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. 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. Water separator
10.Power trim and tilt switch
11.Remote control box (side mount type)*
12.Digital speedometer*
13.Digital tachometer*
14.Fuel tank*
U6D772E0.book Page 7 Monday, March 13, 2006 9:21 AM

Basic components
8
EMU25802
Fuel tank
If your model was equipped with a portable
fuel tank, its function is as follows.
WARNING
EWM00020
The fuel tank supplied with this engine is
its dedicated fuel reservoir and must not
be used as a fuel storage container. Com-
mercial users should conform to relevant
licensing or approval authority regula-
tions.
EMU25830
Fuel joint
This joint is used to connect the fuel line.
1
46
3
2
5
ZMU05429
1. Tachometer unit (Square type)*
2. Tachometer unit (Round type)*
3. Speedometer unit (Square type)*
4. Speed & fuel meter unit (Square type)*
5. Speed & fuel meter unit (Round type)*
6. Fuel management meter (Square type)*
1. Fuel joint
2. Fuel gauge
3. Fuel tank cap
4. Air vent screw
U6D772E0.book Page 8 Monday, March 13, 2006 9:21 AM

Basic components
9
EMU25841
Fuel gauge
This gauge is located on either the fuel tank
cap or on the fuel joint base. It shows the ap-
proximate amount of fuel remaining in the
tank.
EMU25850
Fuel tank cap
This cap seals the fuel tank. When removed,
the tank can be filled with fuel. To remove the
cap, turn it counterclockwise.
EMU25860
Air vent screw
This screw is on the fuel tank cap. To loosen
the screw, turn it counterclockwise.
EMU26180
Remote control
The remote control lever actuates both the
shifter and the throttle. The electrical switches
are mounted on the remote control box.
EMU26190
Remote control lever
Moving the lever forward from the neutral po-
sition engages forward gear. Pulling the lever
back from neutral engages reverse. The en-
gine 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.
EMU26201
Neutral interlock trigger
To shift out of neutral, first pull the neutral in-
terlock trigger up.
EMU26211
Neutral throttle lever
To open the throttle without shifting into either
forward or reverse, put the remote control le-
ver in the neutral position and lift the neutral
throttle lever.
1. Power trim and tilt switch
2. Remote control lever
3. Neutral interlock trigger
4. Neutral throttle lever
5. Main switch / choke switch
6. Engine stop lanyard switch
7. Throttle friction adjuster
1. Neutral “”
2. Forward “”
3. Reverse “”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
1. Neutral interlock trigger
U6D772E0.book Page 9 Monday, March 13, 2006 9:21 AM

Basic components
10
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.
EMU25911
Tiller handle
To change direction, move the tiller handle to
the left or right as necessary.
EMU25922
Gear shift lever
Pulling the gear shift lever towards you puts
the engine in forward gear so that the boat
moves ahead. Pushing the lever away from
you puts the engine in reverse gear so that the
boat moves astern.
EMU25941
Throttle grip
The throttle grip is on the tiller handle. Turn
the grip counterclockwise to increase speed
and clockwise to decrease speed.
EMU25961
Throttle indicator
The fuel consumption curve on the throttle in-
dicator shows the relative amount of fuel con-
sumed for each throttle position. Choose the
setting that offers the best performance and
fuel economy for the desired operation.
1. Fully open
2. Fully closed
1. Forward “”
2. Neutral “”
3. Reverse “”
U6D772E0.book Page 10 Monday, March 13, 2006 9:21 AM

Basic components
11
EMU25971
Throttle friction adjuster
A friction device provides adjustable resis-
tance to movement of the throttle grip or the
remote control lever, and can be set accord-
ing to operator preference.
To increase resistance, turn the adjuster
clockwise. To decrease resistance, turn the
adjuster counterclockwise.
WARNING
EWM00031
Do not overtighten the friction adjuster. If
there is too much resistance, it could be
difficult to move the remote control lever
or throttle grip, which could result in an
accident.
When constant speed is desired, tighten the
adjuster to maintain the desired throttle set-
ting.
EMU25990
Engine stop lanyard switch
The lock plate must be attached to the 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 ig-
nition to the engine. This will prevent the boat
from running away under power.
WARNING
EWM00120
●Attach the engine stop switch lanyard to
a secure place on your clothing, or your
arm or leg while operating.
●Do not attach the lanyard to clothing
that could tear loose. Do not route the
lanyard where it could become entan-
gled, preventing it from functioning.
●Avoid accidentally pulling the lanyard
during normal operation. Loss of 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. Throttle indicator
U6D772E0.book Page 11 Monday, March 13, 2006 9:21 AM

Basic components
12
NOTE:
The engine cannot be started with the lock
plate removed.
EMU26001
Engine stop button
To open the ignition circuit and stop the en-
gine, push this button.
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 can-
not be removed.
●“”(start)
With the main switch in the “”(start) po-
sition, the starter motor turns to start the en-
gine. When the key is released, it returns
automatically to the “”(on) position.
1. Lanyard
2. Lock plate
1. Lanyard
2. Lock plate
U6D772E0.book Page 12 Monday, March 13, 2006 9:21 AM

Basic components
13
EMU26141
Power trim and tilt switch on remote
control or tiller handle
The power trim and tilt system adjusts the out-
board 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 re-
leased, the outboard motor will stop in its cur-
rent position.
NOTE:
For instructions on using the power trim and
tilt switch, see pages 37 and 40.
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 po-
sition.
WARNING
EWM01030
Use the power trim and tilt switch located
on the bottom engine cowling only when
the boat is at a complete stop with the en-
gine off. Attempting to use this switch
while the boat is moving could increase
the risk of falling overboard and could dis-
tract 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 40.
EMU30900
Variable trolling RPM switches
The trolling speed can be adjusted when the
outboard motor is trolling. Press the “”
switch to increase the trolling speed and
press the “”switch to decrease the trolling
speed.
NOTE:
●The trolling speed changes approximately
50 r/min each time a switch is pressed.
1. Power trim and tilt switch
UP
DN
1
ZMU04231
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Basic components
14
●If the trolling speed has been adjusted, the
engine returns to the normal trolling speed
when the engine is stopped and restarted
or when the engine speed exceeds approx-
imately 3000 r/min.
●For instructions on using the variable troll-
ing RPM switches, see page 36.
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.
WARNING
EWM00840
An improperly adjusted trim tab could
cause difficult steering. Always test run af-
ter the trim tab has been installed or re-
placed to be sure steering is correct. Be
sure you have tightened the bolt after ad-
justing the trim tab.
If the boat tends to veer the left (port side),
turn the trim tab rear end to the port side “A”in
the figure. If the boat tends to veer the right
(starboard side), turn the trim tab end to the
starboard side “B”in the figure.
CAUTION:
ECM00840
The trim tab also serves as an anode to
protect the engine from electrochemical
corrosion. Never paint the trim tab as it will
become ineffective as an anode.
EMU26340
Tilt support lever for power trim and
tilt or hydro tilt model
To keep the outboard motor in the tilted up po-
sition, lock the tilt support lever to the clamp
bracket.
1. Variable trolling RPM switch
1. Trim tab
2. Bolt
3. Cap
1
2
3
ZMU02525
A
B
A
BZMU01863
U6D772E0.book Page 14 Monday, March 13, 2006 9:21 AM