Yamaha 15F Owner's Manual
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9.9F
15F
OWNER'S MANUAL
63V-28199-79-E0

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Summary of Contents for Yamaha 15F

  • Page 1 9.9F OWNER’S MANUAL 63V-28199-79-E0...
  • Page 2 Read this owner’s manual carefully before operating or working on your outboard motor. Keep this manual onboard in a waterproof bag when boating. This manual should stay with the outboard motor if it is sold.
  • Page 3: Important Manual Information

    If there is any To the owner question concerning this manual, please con- Thank you for choosing a Yamaha outboard sult your Yamaha dealer. motor. This Owner’s Manual contains infor- To ensure long product life, Yamaha recom-...
  • Page 4: Table Of Contents

    Table of contents Fuel gauge ......... 9 General information ......1 Fuel tank cap........9 Identification numbers record ..1 Air vent screw ........9 Outboard motor serial number ... 1 Tiller handle ........9 EC label........... 1 Gear shift lever ........9 Important labels.......
  • Page 5 Table of contents Shifting .......... 22 Cleaning fuel tank......40 Inspecting and replacing anode(s) ... 41 Stopping boat ........ 23 Checking top cowling ....... 41 Stopping engine ......23 Coating the boat bottom ....42 Procedure......... 23 Trimming outboard motor ....23 Trouble Recovery......
  • Page 6: General Information

    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- 1. EC label location len.
  • Page 7 General information 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. EMU25431 Label EWM01300 WARNING This engine is equipped with a neutral starting device.
  • Page 8: Safety Information

    Safety information EMU33620 Do not route the cord where it is likely to be Safety information accidentally pulled out. If the cord is pulled Observe these precautions at all times. during operation, the engine will shut off and EMU33630 you will lose most steering control. The boat Rotating parts could slow rapidly, throwing people and ob- Hands, feet, hair, jewelry, clothing, PFD...
  • Page 9: Boating Safety

    Have an approved personal flotation device distribution can compromise the boats han- (PFD) on board for every occupant. Yamaha dling and lead to an accident, capsizing or recommends that you must wear a PFD swamping. whenever boating. At a minimum, children...
  • Page 10: Weather

    Safety information EMU33790 Weather Stay informed about the weather. Check weather forecasts before boating. Avoid boat- ing in hazardous weather. EMU33880 Passenger training Make sure at least one other passenger is trained to operate the boat in the event of an emergency.
  • Page 11: Basic Requirements

    Basic requirements EMU25540 If knocking or pinging occurs, use a different Fueling instructions brand of gasoline or premium unleaded fuel. EWM00010 EMU25650 WARNING Engine oil GASOLINE AND ITS VAPORS ARE HIGH- Recommended engine oil: LY FLAMMABLE AND EXPLOSIVE! YAMALUBE 2-stroke outboard motor Do not smoke when refueling, and keep away from sparks, flames, or other sources of ignition.
  • Page 12: Propeller Selection

    Yamaha outboard motors affixed with the pic- Your Yamaha dealer can help you select the tured label or Yamaha-approved remote con- right propeller for your boating needs. Select trol units are equipped with start-in-gear a propeller that will allow the engine to reach protection device(s).
  • Page 13: Basic Components

    Basic components EMU2579B Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all models. 9.9F, 15F 1. Top cowling 17.Cooling water inlet 2. Top cowling lock lever 18.Propeller* 3. Cooling water pilot hole 19.Fuel tank...
  • Page 14: Fuel Joint

    Basic components mercial users should conform to relevant licensing or approval authority regula- tions. EMU25922 Gear shift lever Pulling the gear shift lever towards you puts the engine in forward gear so that the boat 1. Fuel joint moves ahead. Pushing the lever away from 2.
  • Page 15: Throttle Indicator

    Basic components 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. EMU25961 Throttle indicator The fuel consumption curve on the throttle in- dicator shows the relative amount of fuel con- sumed for each throttle position.
  • Page 16: Engine Stop Button

    Basic components Avoid accidentally pulling the cord dur- EMU26030 Choke knob ing normal operation. Loss of engine To supply the engine with the rich fuel mixture power means the loss of most steering required to start, pull out this knob. The choke control.
  • Page 17: Steering Friction Adjuster

    Basic components EMU26122 EMU30440 Steering friction adjuster Tilt lock mechanism A friction device provides adjustable resis- The tilt lock mechanism is used to prevent the tance to the steering mechanism, and can be outboard motor from lifting out of the water set according to operator preference.
  • Page 18: Top Cowling Lock Lever(S) (Turn Type)

    1. Top cowling lock lever(s) EMU26410 2-pin connector AC 12 V-40/60/80W power is delivered through this connector. When using it, keep in mind the following points: Use a genuine Yamaha connector. Use lighting equipment only. Connect lighting equipment directly to the 2-pin connector.
  • Page 19: Operation

    Operation EMU26902 Installation The information presented in this section is in- tended as reference only. It is not possible to provide complete instructions for every possi- ble boat and motor combination. Proper mounting depends in part on experience and the specific boat and motor combination. EWM01590 WARNING ZMU01760...
  • Page 20: Clamping The Outboard Motor

    Otherwise the optimum mounting height. Consult your the engine could be completely lost if it Yamaha dealer or boat manufacturer for accidentally falls off the transom. further information on determining the prop- er mounting height.
  • Page 21: Breaking In Engine

    CAUTION: using the bolts provided with the out- Be sure to mix gasoline and oil complete- board (if packed). For details, consult ly, otherwise the engine may be damaged. your Yamaha dealer. EWM00650 EMU27074 WARNING Procedure for pre-mixed models Avoid using bolts, nuts or washers other...
  • Page 22: Pre-Operation Checks

    Check fuel line connections to be sure they 25.0 L (6.61 US gal) (5.50 Imp.gal) are tight (if equipped Yamaha fuel tank or boat tank). EMU27405 Gasoline and oil mixing (100:1) Be sure the fuel tank is positioned on a se-...
  • Page 23: Operating Engine

    Operation If equipped with a portable fuel tank ECM00811 CAUTION: Pour oil into the portable fuel tank, and Avoid using any oil other than the spec- then add gasoline. ified type. Use a thoroughly blended fuel-oil mix- ture. If the mixture is not thoroughly mixed, or if the mixing ratio is incorrect, the fol- lowing problems could occur.
  • Page 24: Starting Engine

    Operation toms include nausea, dizziness, and If a steering friction adjuster is provided drowsiness. Keep cockpit and cabin ar- on your outboard motor, securely attach eas well ventilated. Avoid blocking ex- the fuel line to the fuel line clamp. haust outlets. NOTE: During engine operation place the tank hori- If there is an air vent screw on the fuel...
  • Page 25 Operation Place the throttle grip in the “ ” NOTE: (start) position. The start-in-gear protection device prevents the engine from starting except when in neu- tral. Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg.
  • Page 26: Warming Up Engine

    Slowly return the throttle grip to the fully blocked. Consult your Yamaha dealer if closed position. the problem cannot be located and cor- rected.
  • Page 27: Shifting

    Operation EMU34550 Shifting EWM00180 WARNING Before shifting, make sure there are no swimmers or obstacles in the water near you. ECM01610 CAUTION: Warm up the engine before shifting into gear. Until the engine is warm, the idle To shift from in gear (forward/reverse) to neu- speed may be higher than normal.
  • Page 28: Stopping Boat

    Operation EMU31742 After stopping the engine, tighten the air Stopping boat vent screw on the fuel tank cap and set EWM01510 the fuel cock lever or knob to the closed WARNING position, if equipped. Do not use the reverse function to slow down or stop the boat as it could cause you to lose control, be ejected, or impact the steering wheel or other parts of the...
  • Page 29: Adjusting Trim Angle For Manual Tilt Models

    Operation engine, and propeller. Correct trim is also af- fected by variables such as the load in the boat, sea conditions, and running speed. EWM00740 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cause boat instability and can make steer- ing the boat more difficult.
  • Page 30: Tilting Up And Down

    Operation bow up, the boat may have a greater tenden- also makes the boat unstable. Resistance at cy to steer to one side or the other. Compen- the bow is greatly increased, heightening the sate for this as you steer. The trim tab can danger of “bow steering”...
  • Page 31: Procedure For Tilting Up (Manual Tilt Models)

    Operation ECM00241 Push the tilt support knob into the clamp CAUTION: bracket. Or the tilt support bar will turn to Before tilting the outboard motor, stop the lock position automatically. the engine by following the procedure on page 23. Never tilt the outboard mo- tor while the engine is running.
  • Page 32: Cruising In Shallow Water

    Operation Slowly tilt the engine down. EMU28060 Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water. EMU28071 Cruising in shallow water (manual tilt models) EWM00710 WARNING ZMU02868 Place the gear shift in neutral before us- ing the shallow water cruising system.
  • Page 33: Cruising In Other Conditions

    Cruising in muddy or turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (available for V4 and large engines) if you use the outboard motor in water with a lot of sedi- ment in it, such as muddy or other turbid (cloudy) water.
  • Page 34: Maintenance

    Maintenance EMU31480 Spark plug (NGK): Specifications BR7HS-10 Spark plug gap: NOTE: 0.9–1.0 mm (0.035–0.039 in) “(AL)” stated in the specification data below Control system: represents the numerical value for the alumi- Tiller Starting system: num propeller installed. Manual Likewise, “(SUS)” represents the value for Starting carburetion system: stainless steel propeller installed and “(PL)”...
  • Page 35: Transporting And Storing Outboard Motor

    Sound power level (ICOMIA 39/94 and 40/94): tion using a motor support device such as a 92.1 dB(A) transom saver bar. Consult your Yamaha Vibration on tiller handle (ICOMIA 38/94): dealer for further details. Vibration on tiller handle is under 2.5 m/s²...
  • Page 36: Procedure

    Maintenance It is advisable to have your outboard motor serviced by an authorized Yamaha dealer pri- or to storage. However, you, the owner, with a minimum of tools, can perform the following procedures. ECM01411 CAUTION: Do not place the outboard motor on its...
  • Page 37: Lubrication

    34. specified. If you are not familiar with ma- chine servicing, this work should be done NOTE: by your Yamaha dealer or other qualified For long-term storage, fogging the engine mechanic. with oil is recommended. Contact your...
  • Page 38: Maintenance Chart

    When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use. The “ ” symbol indicates the check-ups which you may carry out yourself. The “ ” symbol indicates work to be carried out by your Yamaha dealer. Initial Every Item Actions...
  • Page 39: Greasing

    50 hours 100 hours 200 hours (1 month) (3 months) (6 months) (1 year) Cleaning / adjustment / Spark plug(s) replacement EMU28941 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) 9.9F, 15F...
  • Page 40: Cleaning And Adjusting Spark Plug

    Do not attempt to di- agnose any problems yourself. Instead, take NOTE: the outboard motor to a Yamaha dealer. You If a torque-wrench is not available when you should periodically remove and inspect the are fitting a spark plug, a good estimate of the...
  • Page 41: Inspecting Fuel Filter

    Improper assembly or Check the fuel lines for leaks, crack, or mal- replacement could result in a fuel leak, function. If a problem is found, your Yamaha which could result in a fire or explosion dealer or other qualified mechanic should re- hazard.
  • Page 42: Inspecting Idling Speed

    If you have difficulty veri- 3. O-ring fying the idle speed, or the idle speed requires 4. Filter housing adjustment, consult a Yamaha dealer or other Reinstall the filter element in the cup. qualified mechanic. Make sure the O-ring is in position in the cup.
  • Page 43: Water Leakage

    Maintenance EMU29130 Water leakage Start the engine and check that no water leaks from the joints between the exhaust cover, cylinder head, and body cylinder. EMU32110 Checking propeller EWM01610 WARNING You could be seriously injured if the en- gine accidentally starts when you are near ZMU01897 the propeller.
  • Page 44: Installing Propeller

    Tilt the outboard motor so that the gear oil Apply Yamaha marine grease or a corro- drain screw is at the lowest point possi- sion resistant grease to the propeller ble.
  • Page 45: Cleaning Fuel Tank

    NOTE: Remove the fuel tank from the boat be- For disposal of used oil, consult your Yamaha fore cleaning it. Work only outdoors in dealer. an area with good ventilation.
  • Page 46: Inspecting And Replacing Anode(S)

    Do not paint anodes, as this would render them ineffective. NOTE: Inspect ground leads attached to external an- odes on equipped models. Consult a Yamaha dealer for inspection and replacement of inter- nal anodes attached to the power unit. ZMU03231 Remove the screws holding the fuel joint assembly.
  • Page 47: Coating The Boat Bottom

    Maintenance Check the fitting of the top cowling by pushing it with both hands. If it is loose have it repaired by your Yamaha dealer. EMU29400 Coating the boat bottom A clean hull improves boat performance. The boat bottom should be kept as clean of marine growth as possible.
  • Page 48: Trouble Recovery

    Yamaha outboard motors. Therefore Q. Has fuel pump malfunctioned? some items may not apply to your model. A. Have serviced by a Yamaha dealer. If your outboard motor requires repair, bring it to your Yamaha dealer. Q. Are spark plug(s) fouled or of incorrect...
  • Page 49 A. Return to normal operating position. A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? Q. Is fuel filter clogged? A. Have serviced by a Yamaha dealer. A. Clean or replace filter. Q. Is fuel joint connection incorrect? Q. Have ignition parts failed? A.
  • Page 50 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or oth- A. Have serviced by a Yamaha dealer. er obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.
  • Page 51: Temporary Action In Emergency

    A. Tighten bolt. EWM01022 WARNING Q. Is steering pivot loose or damaged? Use this procedure only in an emergen- A. Tighten or have serviced by a Yamaha cy to return to the nearest port for re- dealer. pairs. EMU29433 Temporary action in emergency...
  • Page 52: Emergency Starting Engine

    Trouble Recovery Do not attach the cord to clothing that could tear loose. Do not route the cord where it could become entangled, pre- venting it from functioning. Avoid accidentally pulling the cord dur- ing normal operation. Loss of engine power means the loss of most steering control.
  • Page 53: Treatment Of Submerged Motor

    If the outboard motor is submerged, immedi- cranking with the manual starter or emer- ately take it to a Yamaha dealer. Otherwise gency starter rope. some corrosion may begin almost immediate- If you cannot immediately take the outboard...
  • Page 54 YAMAHA MOTOR CO., LTD. Printed in Japan March 2007–0.9 × 1 CR Printed on recycled paper...

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