Yamaha F9.9MSH v2 Owner's Manual
en
F9.9 T9.9
OWNERS MANUAL
6G8-28199-1S
U.S.A.Edition LIT-18626-07-07
6G8-9-1S-Hyoshi 06.4.18 11:57 AM 1
EMU25060
ZMU01690
Read this owners manual carefully before operating your outboard motor.
6G8-9-1S-Hyoshi 06.4.18 11:57 AM 2
Important manual information
EMU31280
To the owner
Thank you for choosing a Yamaha outboard motor. This Owners Manual contains infor- mation needed for proper operation, mainte- nance and care. A thorough understanding of these simple instructions will help you ob- tain 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 Owners Manual particularly important information is distinguished in the following ways.
The Safety Alert Symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED!
WARNING
EWM00780
Failure to follow WARNING instructions could result in severe injury or death to the machine operator, a bystander, or a person inspecting or repairing the out-
board 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 prod- uct information available at the time of print- ing, there may be minor discrepancies between your machine and this manual. If there is any question concerning this manu-
al, please consult your Yamaha dealer.
NOTE:
The F9.9ER, F9.9MH, T9.9ER, T9.9EH and the standard accessories are used as a base for the explanations and illustrations in this manual. Therefore some items may not ap-
ply to every model.
EMU25110
F9.9, T9.9 OWNERS MANUAL
2006 by Yamaha Motor Corporation, USA 1st edition, April 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-18626-07-07
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 Caution labels ................................... 5
Basic boating rules (Rules of the road) .............................................. 5
Steering and sailing rules and sound signals............................................. 5
Rules when encountering vessels .... 6 Other special situations..................... 7
Fueling instructions ......................... 8
Gasoline............................................ 9 Engine oil .......................................... 9
Battery requirement....................... 10
Battery specifications ...................... 10 Without a rectifier or Rectifier
Regulator ...................................... 10
Propeller selection......................... 10 Start-in-gear protection ................. 11
Basic components .......................... 12
Main components.......................... 12
Fuel tank ......................................... 13 Fuel joint ......................................... 13 Fuel gauge ...................................... 13 Fuel tank cap .................................. 13 Air vent screw ................................. 13 Remote control................................ 13 Remote control lever ....................... 13 Neutral interlock trigger ................... 14 Neutral throttle lever........................ 14 Tiller handle .................................... 14 Gear shift lever................................ 15 Throttle grip ..................................... 15 Throttle indicator ............................. 15 Throttle friction adjuster................... 16 Engine stop lanyard switch ............. 16 Engine stop button .......................... 17 Manual starter handle ..................... 17
Starter button ..................................17 Main switch .....................................18 Steering friction adjuster .................18 Steering Lock Device ......................18 Trim rod (tilt pin) ..............................19 Shallow water lever .........................19 Tilt lock mechanism.........................19 Tilt support lever for manual tilt
model ............................................19 Top cowling lock lever(s) (turn
type) ..............................................20 Low oil pressure warning
indicator ........................................20
Operation ......................................... 21
Installation..................................... 21
Mounting the outboard motor ..........21 Mounting height for sailboat ............22 Clamping the outboard motor..........22
Breaking in engine ........................ 23
Procedure for 4-stroke models........23
Preoperation checks ..................... 24
Fuel .................................................24 Controls...........................................24 Engine .............................................24 Checking the engine oil level ..........24
Filling fuel...................................... 25
Ring Free Fuel Additive...................25
Operating engine .......................... 26
Feeding fuel (portable tank) ............26 Starting engine ................................27
Warming up engine....................... 30
Oil pressure indicator models..........30
Shifting.......................................... 31
Forward (tiller handle and remote control models) .............................31
Reverse (manual tilt and hydro tilt models) .........................................32
Stopping engine............................ 33
Procedure........................................33
Trimming outboard motor.............. 34
Adjusting trim angle for manual tilt models ..........................................34
Adjusting boat trim ..........................35
Tilting up and down....................... 36
Procedure for tilting up (manual tilt
Table of contents
models) ......................................... 36 Procedure for tilting down (manual
tilt models) .................................... 37
Cruising in shallow water .............. 37
Cruising in shallow water (manual tilt models) .................................... 37
Cruising in other conditions........... 39
Maintenance..................................... 40
Specifications ................................ 40 Transporting and storing outboard
motor ........................................... 42
Clamp screw mounting models ....... 42 Storing outboard motor ................... 42 Procedure ....................................... 43 Lubrication ...................................... 44 Cleaning and anticorrosion
measures ...................................... 44 Battery care..................................... 44 Cleaning the outboard motor .......... 45 Checking painted surface of
motor............................................. 45
Periodic maintenance.................... 45
Replacement parts .......................... 45 Maintenance chart .......................... 46 Maintenance chart (additional)........ 47 Greasing ......................................... 48 Cleaning and adjusting spark
plug ............................................... 48 Checking fuel system...................... 49 Checking fuel filter .......................... 50 Inspecting idling speed ................... 50 Changing engine oil ........................ 50 Checking wiring and connectors ..... 52 Exhaust leakage ............................. 52 Water leakage................................. 53 Engine oil leakage........................... 53 Checking propeller .......................... 53 Removing the propeller ................... 54 Installing the Propeller .................... 54 Changing gear oil ............................ 55 Cleaning fuel tank ........................... 56 Inspecting and replacing
anode(s)........................................ 57 Checking battery (for electric start
models) ......................................... 57
Connecting the battery ....................58 Disconnecting the battery................59 Charging battery..............................59 Checking top cowling ......................60 Coating the boat bottom..................60
Trouble Recovery............................ 61
Troubleshooting ............................ 61 Temporary action in emergency ... 64
Impact damage ...............................64 Replacing fuse ................................64 Starter will not operate ....................65 Emergency starting engine .............65
Engine fails to operate .................. 66
Cold engine fails to start..................66
Treatment of submerged motor .... 67
Procedure........................................67
Consumer information ................... 69
Important warranty information for U.S.A. and Canada ..................... 69
YAMAHA MOTOR CORPORATION, U.S.A. FOUR- STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY ............................... 71
IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA ...................... 73
1
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 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.
EMU25221
Emission control information
EMU25230
North American models
This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for ma- rine SI engines. See the label affixed to your engine for details.
EMU25242
Approval label of emission control certif- icate
This label is attached to the bottom cowling. New Technology; (4-stroke/HPDI) EM
1. Outboard motor serial number location
1. Key number
1. Approval label location
1
ZMU04352
General information
2
EMU25262
Manufactured date label
This label is attached to the clamp bracket or the swivel bracket.
EMU25272
Star labels
Your outboard motor is labeled with a Cali- fornia Air Resources Board (CARB) star la- bel. See below for a description of your
particular label.
EMU25280
One StarLow Emission
The one-star label identifies engines that meet the Air Resources Boards 2001 ex- haust emission standards. Engines meeting these standards have 75% lower emissions than conventional carbureted two-stroke en- gines. These engines are equivalent to the U.S. EPAs 2006 standards for marine en- gines.
EMU25290
Two StarsVery Low Emission
The two-star label identifies engines that meet the Air Resources Boards 2004 ex- haust emission standards. Engines meeting these standards have 20% lower emissions than One Star-Low-Emission engines.
1. Manufactured date label location
ZMU05159
ZMU04353 1
Manufactured:
ZMU04346
1. Star labels location
1
ZMU04354
ZMU01702
General information
3
EMU25300
Three StarsUltra Low Emission
The three-star label identifies engines that meet the Air Resources Boards 2008 ex- haust emission standards. Engines meeting these standards have 65% lower emissions than One Star-Low-Emission engines.
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- ers or operators manuals supplied with it and all labels. Be sure you understand each item before operating.
Do not overpower the boat with this out- board motor. Overpowering the boat could result in loss of control. The rated power of
the outboard should be equal to or less than the rated horsepower capacity of the boat. If the rated horsepower capacity of the boat is unknown, consult the dealer or boat manufacturer.
Do not modify the outboard. Modifications could make the motor unfit or unsafe to use.
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 fatali- ties 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 non- swimmers 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 prop- er 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 acciden- tally leave the helm, the cord will pull from
ZMU01703
ZMU01704
General information
4
the switch, stopping the engine.
Know the marine laws and regulations where you will be boatingand 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 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.
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 with- out using a funnel or similar device. If nec- essary, 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 fol- lowing:
United States Coast Guard
Consumer Affairs Staff (G-BC) Office of Boating, Public, and Consumer Af- fairs U.S. Coast Guard Headquarters Washington, D.C. 20593-0001 Boating Safety Hotline: 1-800-368-5647
National Marine Manufacturers Associa- tion (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
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.
ZMU04355
General information
5
EMU25431
Label
WARNING
EWM01300
This engine is equipped with a neutral starting device.
The engine will not start unless the shift
control is in neutral position.
EMU25465
Caution labels
EMU25473
Label
CAUTION:
ECM01191
Transport and store the engine only as shown. Otherwise, engine damage could
result from leaking oil.
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 agen- cies. 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 Owners Manual are condensed, and have been pro- vided for your convenience only. Consult your local U.S. Coast Guard Auxiliary or De- partment 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-of-way, 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-of- way 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 brief- ly 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 naviga-
ZMU04357
General information
6
tion and collision, and to any special circum- stances, which may render a departure from the above rules necessary in order to avoid immediate danger. In other words, follow the standard rules ex- cept 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 ves- sel head-on)
Crossing:
(you are traveling across the oth- er vessels 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 shad- ed 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 ves- sel on your port (left) side. This rule doesnt 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 others path close enough to run the risk of collision, the vessel which has the oth- er 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 direc- tion, 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
General information
7
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 an- other 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 oth- er 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 power- driven vessel is preparing to go around a bend that may obstruct the view of other wa- ter vessels, the operator should sound a pro- longed 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 pro- ceed 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 ves- sels 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-driv- en 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 navi- gate 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 navigat- ing in a particular direction. The markings on these buoys are oriented from the perspec- tive of being entered from seaward (the boat- er is going towards the port). This means that red buoys are passed on the starboard (right) side when proceeding from open wa- ter into port, and black buoys are to port (left) side. When navigating out of port, your posi- tion with respect to the buoys should be re- versed; 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 dis- tinctive shapes and colors to show regulato- ry or advisory information. These markers are white with black letters and orange boarders. They signify speed zones, restrict- ed areas, danger areas, and general infor- mation. Remember, markings may vary by geo- graphic location. Always consult local boat- ing authorities before driving your boat in unfamiliar waters.
General information
8
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
ZMU01708
General information
9
dry rags.
Do not overfill the fuel tank.
Tighten the filler cap securely after re- fueling.
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, 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 electro-
static sparks.
CAUTION:
ECM00010
Use only new clean gasoline which has been stored in clean containers and is not contaminated with water or foreign mat-
ter.
EMU25570
Gasoline
If knocking or pinging occurs, use a different brand of gasoline or premium unleaded fuel.
Gasohol
There are two types of gasohol: gasohol con- taining ethanol and that containing metha- nol. 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.
EMU31440
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.
CAUTION:
ECM01050
All 4-stroke engines are shipped from the
factory without engine oil.
Recommended gasoline: Regular unleaded gasoline with a min- imum octane rating of 86 (Pump Oc- tane Number) = (R+M)/2
Recommended engine oil: YAMALUBE 4-M FC-W oil or 4-stroke motor oil with a combination of the fol- lowing 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): 1.0 L (1.06 US qt) (0.88 Imp.qt)
General information
10
EMU25690
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 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
EMU25730
Without a rectifier or Rectifier Regulator
CAUTION:
ECM01090
A battery cannot be connected to models that do not have a rectifier or Rectifier
Regulator.
If you wish to use a battery with the models without a rectifier or Rectifier Regulator, in- stall an optional Rectifier Regulator. Using a maintenance-free battery with the above models can shorten the life of the bat- tery significantly. Install an optional Rectifier Regulator or use accessories rated to withstand 18 volts or higher with the above models. Consult your Yamaha dealer for details on installing an optional Rectifier Regulator.
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 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 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 suit- able as it enables the correct engine speed to be maintained. Conversely, a larger-pitch propeller is more suitable for a smaller oper- ating load. Yamaha dealers stock a range of propellers,
Minimum cold cranking amps (CCA/ SAE):
F9.9ER 245.0 A T9.9EH 245.0 A T9.9ER 245.0 A
Minimum marine cranking amps (MCA/ ABYC):
F9.9ER 323.0 A T9.9EH 323.0 A T9.9ER 323.0 A
Minimum reserve capacity (RC/SAE): F9.9ER 52 minutes T9.9EH 52 minutes T9.9ER 52 minutes
ZMU01710
General information
11
and can advise you and install a propeller on your outboard that is best suited to your ap- plication.
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, reduce the throttle setting to maintain
the engine in the proper operating range.
For instructions on propeller removal and in- stallation, see page 53.
EMU25770
Start-in-gear protection
Yamaha outboard motors or Yamaha-ap- proved 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. Propeller diameter in inches 2. Propeller pitch in inches 3. Type of propeller (propeller mark)
1. Propeller diameter in inches 2. Propeller pitch in inches 3. Type of propeller (propeller mark)
ZMU04605
-x 1 2 3
ZMU04604
-x 1 2 3
12
Basic components
EMU25799
Main components NOTE:
* May not be exactly as shown; also may not be included as standard equipment on all mod-
els.
F9.9, T9.9
1
2 3
4
5 6 7
8
9 10 11 12
13
14 15
15
16 17
18
18
19
19
20
21 22
23
24 25 26
21
ZMU04360
1. Top cowling 2. Top cowling lock lever(s) 3. Cooling water pilot hole 4. Drain screw 5. Anti-cavitation plate 6. Anode 7. Propeller 8. Cooling water inlet 9. Shallow water lever* 10. Trim rod 11. Tilt support lever 12. Clamp bracket 13. Starter button* 14. Engine stop lanyard switch
15. Gear shift lever* 16. Engine stop button* 17. Transom clamp handle 18. Throttle grip* 19. Tiller handle* 20. Manual starter handle* 21. Oil pressure indicator 22. Engine stop button/Engine stop lanyard switch 23. Tilt lock lever 24. Remote control box (side mount type)* 25. Oil pressure indicator panel 26. Fuel tank*
Basic components
13
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.
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 switch- es 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 le- ver back from neutral engages reverse. The engine will continue to run at idle until the le- ver is moved about 35 (a detent can be felt). Moving the lever farther opens the throttle, and the engine will begin to accelerate.
1. Fuel joint 2. Fuel gauge 3. Fuel tank cap 4. Air vent screw
ZMU03157
1 3 4 2
1. Remote control lever 2. Neutral interlock trigger 3. Neutral throttle lever 4. Main switch / choke switch 5. Engine stop lanyard switch 6. Throttle friction adjuster
1 2
3
4
5 6
ZMU04862
Basic components
14
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 ei- ther forward or reverse, put the remote con- 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.
EMU25911
Tiller handle
To change direction, move the tiller handle to the left or right as necessary.
1. Neutral
2. Forward
3. Reverse 4. Shift 5. Fully closed 6. Throttle 7. Fully open
1. Neutral interlock trigger
1. Fully open 2. Fully closed
ZMU04361
ZMU04449
Basic components
15
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 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.
1. Forward
2. Neutral
3. Reverse
1. Forward
2. Neutral
3. Reverse
ZMU02902
3 2 1 R N F
2 13
ZMU04362
R N
F
1. Throttle indicator
ZMU04363
ZMU04448
1
ZMU04450
Basic components
16
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 en- gine 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 un- der 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 en- gine 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.
NOTE:
The engine cannot be started with the lock
plate removed.
ZMU04364
Basic components
17
EMU26001
Engine stop button
To open the ignition circuit and stop the en- gine, push this button.
EMU26070
Manual starter handle
To start the engine, first gently pull the han- dle out until resistance is felt. From that posi- tion, then pull the handle straight out quickly to crank the engine.
EMU26080
Starter button
To start the engine with the electric starter, push the starter button.
1. Lanyard 2. Lock plate
1. Lanyard 2. Lock plate
2
1 ZMU04365
ZMU04366
ZMU04367
ZMU04368
Basic components
18
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) posi- tion, 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 en- gine. When the key is released, it returns automatically to the (on) position.
EMU26122
Steering friction adjuster
A friction device provides adjustable resis- tance to the steering mechanism, and can be set according to operator preference. An ad- justing screw or bolt is located on the swivel bracket.
To increase resistance, turn the adjuster clockwise. To decrease resistance, turn the adjuster counterclockwise.
WARNING
EWM00040
Do not overtighten the friction adjuster. If there is too much resistance, it could be difficult to steer, which could result in an
accident.
EMU26170
Steering Lock Device
A boat with a rudder (such as a sailboat) can be steered with the boats rudder if the en- gine is locked in the straight-ahead position. Lock the steering lock lever to the steering lock plate.
1. Steering lock lever 2. Steering lock plate
ZMU04369
1
2 ZMU04370
Basic components
19
NOTE:
If the sailboat does not move straight ahead when engine is locked with the steering lock lever and the boats rudder is set straight, re- adjust the outboards steering handle angle with the adjustment bolts. If the engine is forced to turn right or left when the steering is locked, the steering plate is designed to break to protect the out- board motor. If the plate breaks, remove the
screw and replace the plate.
NOTE:
A spare plate is contained in the outboards
original packing.
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.
EMU26270
Shallow water lever
Lifting this lever will tilt the motor up partially to provide more clearance when operating in shallow water.
EMU26312
Tilt lock mechanism
The tilt lock mechanism is used to prevent the outboard motor from lifting out of the wa- ter when in reverse gear.
To lock it, set the tilt lock lever in the (lock) position. To release, push the tilt lock lever in the (release) position.
EMU26350
Tilt support lever for manual tilt model
To keep the outboard motor in the tilted up position, lock the tilt support lever to the swivel bracket.
ZMU04371
1. Tilt lock lever
ZMU04372
1
ZMU04373
Basic components
20
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 in- stalling 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.
EMU26511
Low oil pressure warning indicator
The oil pressure lamp is on when the engine is running and oil pressure is normal. If oil pressure drops too low, the lamp goes off. As an additional alert of the low oil pressure condition, the engine runs roughly and will not exceed about 2000 rpm. If the oil lamp goes out or does not come on when the engine is running, stop the engine as soon as it is safe to do so. Check oil level
and add oil as needed. If the lamp goes off when the oil level is correct, consult your Yamaha dealer.
CAUTION:
ECM01130
Do not continue to run the engine if the oil pressure indicator lamp is off. Serious
engine damage could occur.
1. Top cowling lock lever(s)
ZMU04374
1 ZMU04375
1. Oil pressure indicator
1. Oil pressure indicator
1
ZMU04442
1
ZMU05031
21
Operation
EMU26901
Installation
CAUTION:
ECM00110
Incorrect engine height or obstructions to smooth water flow (such as the design or condition of the boat, or accessories such as transom ladders or depth finder transducers) can create airborne