Yamaha F40D, F50F, FT50G, F60C, FT60D User Manual

OWNER’S MANUAL
F40D F50F FT50G F60C FT60D
EMU25050
Read this owner’s manual carefully before operating your outboard motor.
Important manual information
EMU25101
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 the 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
al, please consult your Yamaha dealer. To ensure long product life, Yamaha recom­mends that you use the product and perform the specified periodic inspections and main­tenance by correctly following the instruc­tions in the owner’s manual. 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 re­stricting users from taking the product out of the country where it was purchased, and it may be impossible to register the product in the destination country. Additionally, the warranty may not apply in certain regions. When planning to take the product to another country, consult the dealer where the prod­uct was purchased for further information. If the product was purchased used, please consult your closest dealer for customer re­registration, and to be eligible for the speci­fied services.
NOTE:
The F40DET, F50FED, F50FET, FT50GET, F60CET, FT60DET 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.
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 manu-
Important manual information
EMU25120
F40D, F50F, FT50G, F60C, FT60D
OWNER’S MANUAL
©2006 by Yamaha Motor Co., Ltd.
1st Edition, April 2006
All rights reserved.
Any reprinting or unauthorized use
without the written permission of
Yamaha Motor Co., Ltd. is expressly prohibited.
Printed in Japan
Table of contents
General information .......................... 1
Identification numbers record.......... 1
Outboard motor serial number .......... 1
Key number....................................... 1
EC label........................................... 1
Emission control information ........... 2
SAV models ......................................2
Safety information ........................... 2
Important labels............................... 4
Warning labels ..................................4
Caution labels ...................................4
Fueling instructions ......................... 4
Gasoline............................................ 5
Engine oil ..........................................5
Battery requirement......................... 5
Battery specifications ........................ 6
Propeller selection........................... 6
Start-in-gear protection ................... 7
Basic components ............................8
Main components............................ 8
Fuel tank ...........................................9
Fuel joint ........................................... 9
Fuel gauge ...................................... 10
Fuel tank cap .................................. 10
Air vent screw ................................. 10
Remote control................................ 10
Remote control lever....................... 10
Neutral interlock trigger................... 10
Neutral throttle lever........................ 10
Tiller handle .................................... 11
Gear shift lever................................ 11
Throttle grip..................................... 11
Throttle indicator .............................11
Throttle friction adjuster................... 12
Engine stop lanyard switch .............12
Engine stop button .......................... 13
Main switch .....................................13
Steering friction adjuster .................14
Power trim and tilt switch on
remote control or tiller handle .......14
Power trim and tilt switch on
bottom engine cowling .................. 15
Variable trolling RPM switches........ 15
Trim tab with anode ........................ 16
Trim rod (tilt pin).............................. 16
Tilt lock mechanism......................... 17
Tilt support lever for power trim and
tilt or hydro tilt model.....................17
Top cowling lock lever(s)
(turn type)...................................... 17
Flushing device ...............................17
Water separator ..............................18
Warning indicator ............................18
Tachometer ..................................... 18
Digital tachometer ...........................18
Low oil pressure warning
indicator ........................................19
Low oil pressure warning
indicator ........................................19
Overheat warning indicator .............19
Overheat warning indicator (digital
type) .............................................. 20
Speedometer (digital type) .............. 20
Trim meter....................................... 21
Trim meter (digital type) ..................21
Hour meter (digital type).................. 21
Trip meter........................................ 22
Clock ...............................................22
Fuel gauge ......................................22
Fuel warning indicator ..................... 23
Low battery voltage warning
indicator ........................................23
6Y8 Multifunction meters................. 23
Tachometer unit ..............................23
Speed & fuel meter unit................... 27
Speedometer unit............................ 28
Fuel management meter ................. 29
Warning system ............................ 29
Overheat warning............................ 29
Low oil pressure warning ................30
Operation ......................................... 32
Installation..................................... 32
Mounting the outboard motor .......... 32
Breaking in engine ........................ 33
Procedure for 4-stroke models........ 33
Preoperation checks ..................... 33
Fuel .................................................33
Controls........................................... 34
Engine ............................................. 34
Checking the engine oil level ..........34
Table of contents
Filling fuel ...................................... 34
Operating engine........................... 35
Feeding fuel (portable tank) ............ 35
Starting engine................................ 36
Warming up engine ....................... 38
Manual start and electric start
models .......................................... 38
Shifting .......................................... 39
Forward (tiller handle and remote
control models) ............................. 39
Reverse (automatic reverse lock
and power trim and tilt models)..... 40
Reverse (manual tilt and hydro tilt
models) ......................................... 40
Trolling .......................................... 41
Adjusting trolling speed................... 41
Stopping engine ............................ 42
Procedure ....................................... 42
Trimming outboard motor.............. 42
Adjusting trim angle ........................ 43
Adjusting trim angle for hydro tilt
models .......................................... 44
Adjusting boat trim ..........................44
Tilting up and down ....................... 45
Procedure for tilting up (hydro tilt
models) ......................................... 46
Procedure for tilting up (power trim
and tilt models / power tilt
models) ......................................... 47
Procedure for tilting down (manual
and hydro tilt models) ................... 48
Procedure for tilting down (power
trim and tilt models / power tilt
models) ......................................... 49
Cruising in shallow water .............. 49
Hydro tilt models .............................49
Power trim and tilt models / power
tilt models...................................... 51
Cruising in other conditions........... 52
Maintenance..................................... 53
Specifications ................................ 53
Transporting and storing outboard
motor ........................................... 54
Storing outboard motor ...................55
Procedure ....................................... 55
Lubrication (except oil injection
models) ......................................... 57
Battery care..................................... 57
Flushing power unit ......................... 58
Cleaning the outboard motor........... 59
Checking painted surface of
motor.............................................59
Periodic maintenance ................... 59
Replacement parts .......................... 59
Maintenance chart........................... 60
Maintenance chart (additional)........ 61
Greasing.......................................... 62
Cleaning and adjusting spark
plug ............................................... 62
Checking fuel system ...................... 63
Inspecting idling speed.................... 64
Changing engine oil ........................64
Checking wiring and connectors .....66
Exhaust leakage.............................. 66
Water leakage ................................. 66
Engine oil leakage........................... 66
Checking power trim and tilt /
power tilt system ........................... 66
Checking propeller ..........................67
Removing the propeller ................... 68
Installing the Propeller..................... 68
Changing gear oil ............................ 69
Cleaning fuel tank ...........................70
Inspecting and replacing
anode(s)........................................70
Checking battery (for electric start
models) ......................................... 71
Connecting the battery .................... 72
Disconnecting the battery................ 72
Checking top cowling ......................73
Coating the boat bottom.................. 73
Trouble Recovery............................ 74
Troubleshooting ............................ 74
Temporary action in emergency ... 77
Impact damage ...............................77
Replacing fuse ................................77
Power trim and tilt / power tilt will
not operate....................................78
Water separator warning indicator
blinks while cruising ...................... 78
Starter will not operate .................... 80
Emergency starting engine .............81
Treatment of submerged motor..... 81
Procedure ....................................... 82
Table of contents

General information

EMU25170
Identification numbers record
EMU25183
Outboard motor serial number
The outboard motor serial number is stamped on the label attached to the port side of the clamp bracket. Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto­len.
1. Outboard motor serial number location
1. Key number
EMU25202
EC label
Engines affixed with this label conform to certain portions of the European Parliament directive relating to machinery. Refer to the label and the EC Declaration of Conformity for more details.
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
1
1. EC label location
ZMU04704
General information
Fuel requirement label
ZMU01696
EMU25221
Emission control information
EMU25351
SAV models
Engines affixed with the label pictured below conform to SAV (the Swiss exhaust emission regulations for Swiss inshore waters).
Approval label of emission control certif­icate
ZMU05466
YAMAHA MOTOR CO.,LTD.
Motorfamilie
Abgastypenpruf­Nummer
ZMU04492
1
ZMU04031
1. Fuel requirement label location
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 out­board 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
2
General information
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 de-
vice (PFD) on board for every occupant. It is a good idea to wear a PFD whenever boating. At a minimum, children and non­swimmers should always wear PFDs, and everyone should wear PFDs when there are potentially hazardous boating condi­tions.
Gasoline is highly flammable, and its va­pors 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 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 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 dur-
ing the engine operation.
Stay away from swimming areas. When a swimmer is in the water near you
shift into neutral and shut off the engine.
Do not illegally discard empty containers used to replace or replenish oil. For the correct processing of empty containers, consult the dealer where you purchased the oil.
When replacing oils used to lubricate the product (engine or gear oil), be sure to wipe away any spilt oil. Never pour oil 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 deal­er on discarding the product.
3
General information
EMU25382
Important labels
EMU25395
Warning labels
ZMU04703
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.
EMU25465
Caution labels
ZMU04702
EMU25473
Label
ECM01191
CAUTION:
Transport and store the engine only as
shown. Otherwise, engine damage could result from leaking oil.
EMU25540
Fueling instructions
EWM00010
WARNING
GASOLINE AND ITS VAPORS ARE HIGH­LY 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 gaso­line spills, wipe it up immediately with dry rags.
Do not overfill the fuel tank.
Tighten the filler cap securely after re­fueling.
If you should swallow some gasoline, inhale a lot of gasoline vapor, or get gasoline in your eyes, get immediate medical attention.
If any gasoline spills onto your skin, im­mediately wash with soap and water. Change clothing if gasoline spills on it.
Touch the fuel nozzle to the filler open­ing 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.
4
General information
EMU25580
Gasoline
Recommended gasoline:
Regular unleaded gasoline with a min­imum octane rating of 90 (Research Octane Number).
If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel.
EMU25683
Engine oil
Recommended engine oil:
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):
2.5 L (2.64 US qt) (2.20 Imp.qt)
ECM01050
CAUTION:
All 4-stroke engines are shipped from the factory without engine oil.
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.
5
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.
EMU25720
Battery specifications
General information
Minimum cold cranking amps (CCA/EN):
430.0 A
Minimum rated capacity (20HR/IEC):
70.0 Ah
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
ZMU04606
1. Propeller diameter in inches
2. Propeller pitch in inches
3. Type of propeller (propeller mark)
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.
For instructions on propeller removal and in­stallation, see page 67.
6
General information
EMU25760
Start-in-gear protection
Yamaha outboard motors affixed with the pictured label 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.
1
ZMU01713
1. Start-in-gear protection label
7

Basic components

EMU25799
Main components
NOTE:
* May not be exactly as shown; also may not be included as standard equipment on all mod­els.
F40D, F50F, FT50G, F60C, FT60D
14
1
13
12
11
10
9
1. Top cowling
2. Water separator
3. Top cowling lock lever
4. Drain screw
5. Anode
6. Anti-cavitation plate
7. Trim tab (anode)
8. Propeller
9. Cooling water inlet
10. Anode(s)
11. Tilt rod*
12. Tilt lock lever*
13. Tilt support lever
14. Tiller handle*
2
15
3
16
4
17 18
SPEED
TRIP TIME BATT
set
YAMAHA
Km/h knot mph
km mile
mode
5
19
6
20 21
7
8
ZMU05106
15. Flushing device*
16. Remote control box (side mount type)*
17. Digital tachometer*
18. Digital speedometer*
19. Tachometer*
20. Trim meter*
21. Fuel tank
8
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)*
2
5
3
6
ZMU05429
EMU25802
Fuel tank
If your model was equipped with a portable fuel tank, its function is as follows.
EWM00020
WARNING
The fuel tank supplied with this engine is its dedicated fuel reservoir and must not be used as a fuel storage container. Com­mercial users should conform to relevant licensing or approval authority regula­tions.
9
1. Fuel joint
2. Fuel gauge
3. Fuel tank cap
4. Air vent screw
EMU25830
Fuel joint
This joint is used to connect the fuel line.
Basic components
EMU25841
Fuel gauge
This gauge is located on either the fuel tank cap or on the fuel joint base. It shows the ap­proximate 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.
engine will continue to run at idle until the le­ver is moved about 35° (a detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.
1. Neutral “”
2. Forward “”
3. Reverse “”
4. Shift
5. Fully closed
6. Throttle
7. Fully open
EMU26201
Neutral interlock trigger
To shift out of neutral, first pull the neutral in­terlock trigger up.
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
EMU26190
Remote control lever
Moving the lever forward from the neutral po­sition engages forward gear. Pulling the le­ver back from neutral engages reverse. The
1. Neutral interlock trigger
EMU26211
Neutral throttle lever
To open the throttle without shifting into ei­ther forward or reverse, put the remote con-
10
Basic components
trol lever in the neutral position and lift the neutral throttle lever.
NOTE:
The neutral throttle lever will operate only when the remote control lever is in neutral. The remote control lever will operate only when the neutral throttle lever is in the closed position.
1. Fully open
2. Fully closed
EMU25911
Tiller handle
To change direction, move the tiller handle to the left or right as necessary.
the boat moves astern.
1. Forward “”
2. Neutral “”
3. Reverse “”
EMU25941
Throttle grip
The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed.
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
11
EMU25961
Throttle indicator
The fuel consumption curve on the throttle indicator shows the relative amount of fuel consumed for each throttle position. Choose the setting that offers the best performance and fuel economy for the desired operation.
Basic components
1. Throttle indicator
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.
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 operators 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.
12
Basic components
NOTE:
The engine cannot be started with the lock plate removed.
1. Lanyard
2. Lock plate
1. Lanyard
2. Lock plate
EMU26090
Main switch
The main switch controls the ignition system; its operation is described below.
“”
With the main switch in the “” (off) posi- tion, the electrical circuits are off, and the key can be removed.
With the main switch in the “” (on) posi- tion, the electrical circuits are on, and the key cannot be removed.
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)
“”
(start)
EMU26001
Engine stop button
To open the ignition circuit and stop the en­gine, push this button.
13
Basic components
EMU31430
Steering friction adjuster
A friction device provides adjustable resis­tance to the steering mechanism, and can be set according to operator preference. An ad­juster lever is located on the bottom of the tiller handle bracket. To increase resistance, turn the lever to the port side A. To decrease resistance, turn the lever to the starboard side B.
EWM00040
WARNING
Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an accident.
B
A
ZMU02810
1. Nut
Nut tightening torque:
3.7 Nm (2.7 ft-lb) (0.4 kgf-m)
NOTE:
Check the tiller handle for smooth move­ment when the lever is turned to the star­board side B.
Do not apply lubricants such as grease to the friction areas of the steering friction ad­juster.
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 outboard motor up, then tilts it up. Pressing the switch “” (down) tilts the outboard mo- tor down and trims it down. When the switch is released, the outboard motor will stop in its current position.
NOTE:
For instructions on using the power trim and tilt switch, see pages 42 and 45.
If the resistance does not increase even when the lever is turned to the port side “A”, make sure that the nut is tightened to the specified torque.
14
Basic components
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 obsta-
cle.
1
UP
DN
ZMU03634
1. Power trim and tilt switch
NOTE:
For instructions on using the power trim and tilt switch, see page 45.
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.
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 ap­proximately 3000 r/min. For instructions on using the variable troll-
ing RPM switches, see page 41.
15
Basic components
3
2
1
B
A
ZMU02525
1. Variable trolling RPM switch
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.
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.
1. Trim tab
2. Bolt
3. Cap
A
1
2
1. Trim tab
2. Bolt
EMU26261
Trim rod (tilt pin)
The position of the trim rod determines the minimum trim angle of the outboard motor in relation to the transom.
B
ZMU03097
16
Basic components
ZMU03593
EMU26312
Tilt lock mechanism
The tilt lock mechanism is used to prevent the outboard motor from lifting out of the wa­ter when in reverse gear.
1
ZMU03594
1. Tilt lock lever
To lock it, set the tilt lock lever in the “” (lock) position. To release, push the tilt lock lever in the “” (release) position.
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.
ZMU03595
EMU26372
Top cowling lock lever(s) (turn type)
To remove the engine top cowling, turn 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 again by returning the lever(s) to the lock position.
1
ZMU05093
1. Top cowling lock lever(s)
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 58.
17
1. Flushing device
Basic components
details on how to read the warning indicator, see page 29.
1
ZMU05095
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.
ZMU05474
Activation of warning device
The water separator warning indicator will blink. The buzzer will sound intermittently only
when the gear shift is in neutral. If the warning system has activated, stop
the engine and consult a Yamaha dealer immediately.
EMU26301
Warning indicator
If the engine develops a condition which is cause for warning, the indicator lights up. For
1. Warning indicator
EMU26470
Tachometer
This gauge shows the engine speed and has the following functions.
1
2
ZMU04578
1. Tachometer
2. Warning indicator(s)
EMU26491
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.
18
Basic components
6
7
1
2
3
5
8
1. Tachometer
2. Trim meter
3. Hour meter
4. Low oil pressure warning indicator
5. Overheat warning indicator
6. Water separator warning indicator
7. Engine trouble warning indicator
8. Set button
9. Mode button
NOTE:
The water separator and engine trouble warning indicators only operate when the en­gine is equipped with the appropriate func­tions.
EMU26503
Low oil pressure warning indicator
If oil pressure drops too low, this indicator will flash. For further information, see page 29.
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 34.
9
4
ZMU04185
ZMU04754
EMU26522
Low oil pressure warning indicator
If oil pressure drops too low, the warning in­dicator will start to blink. For further informa­tion, see page 29.
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 34.
1
ZMU01736
1. Low oil pressure warning indicator
EMU26572
Overheat warning indicator
If the engine temperature rises too high, this
19
Basic components
indicator will flash. For further information on reading the indicator, see page 29.
ECM00050
CAUTION:
Do not continue to run the engine if the overheat warning indicator is on. Serious engine damage will occur.
ZMU04715
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 29.
ECM00050
CAUTION:
Do not continue to run the engine if the overheat warning indicator is on. Serious engine damage will occur.
EMU26600
Speedometer (digital type)
This gauge shows the boat speed.
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.
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
1. Overheat warning indicator
ZMU01737
20
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