Yamaha F2.5A Owner's Manual
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Yamaha F2.5A Owner's Manual

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F2.5A
OWNER'S MANUAL
Read this manual carefully before operating this
outboard motor.
69M-F8199-78-E0

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Summary of Contents for Yamaha F2.5A

  • Page 1 F2.5A OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 69M-F8199-78-E0...
  • Page 2 Read this manual carefully before operating this 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 If there is any To the owner question concerning this manual, please con- Thank you for selecting 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 Safety information......1 Muddy or acidic water ....10 Outboard motor safety ....1 Anti-fouling paint ......11 Motor disposal requirements..11 Propeller ..........1 Rotating parts ........1 Emergency equipment ....11 Hot parts..........1 Emission control information..11 Electric shock ........
  • Page 5 Table of contents Engine ..........24 Inspecting idle speed......43 Install cowling ........24 Changing engine oil......44 Filling fuel for built-in tank ..... 24 Inspecting wiring and connectors ..45 Checking propeller ......45 Operating engine......25 Removing propeller ......46 Sending fuel ........

  • Page 6: Safety Information

    Safety information EMU33622 running away under power and leaving peo- Outboard motor safety ple stranded, or running over people or ob- Observe these precautions at all times. jects. EMU36501 Always attach the engine shut-off cord to a Propeller secure place on your clothing or your arm or People can be injured or killed if they come in leg while operating.

  • Page 7: Modifications

    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 8: Weather

    Safety information Avoid sharp turns or other maneuvers that make it hard for others to avoid you or un- derstand where you are going. Avoid areas with submerged objects or shallow water. Ride within your limits and avoid aggressive maneuvers to reduce the risk of loss of con- trol, ejection, and collision.

  • Page 9: General Information

    Outboard motors affixed with this “CE”mark- the spaces provided to assist you in ordering ing conform with the directives of; 98/37/EC, spare parts from your Yamaha dealer or for 94/25/EC - 2003/44/EC and 2004/108/EC. reference in case your outboard motor is sto- len.

  • Page 10: Read Manuals And Labels

    Read any manuals supplied with the boat. Read all labels on the outboard motor and the boat. If you need any additional information, contact your Yamaha dealer. EMU33832 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F2.5A...
  • Page 11 General information ZMU05811 EMU33922 Contents of labels EWM01711 The above warning labels mean as follows. WARNING Read Owner’s Manuals and labels. EWM01701 Wear an approved personal flotation de- WARNING vice (PFD). Gasoline is highly flammable and explo- Ensure shift control is in neutral before sive.
  • Page 12 General information EMU35132 Electrical hazard Symbols The following symbols mean as follows. Notice/Warning ZMU05666 ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665...

  • Page 13: Specifications And Requirements

    Specifications and requirements EMU34520 Engine: Specifications Type: TIP: 4-stroke S “(AL)” stated in the specification data below Displacement: represents the numerical value for the alumi- 72.0 cm³ Bore × stroke: num propeller installed. 54.0 × 31.5 mm (2.13 × 1.24 in) Likewise, “(SUS)”...

  • Page 14: Installation Requirements

    Overpowering a boat can cause severe in- propriate. stability. Your Yamaha dealer can help you select the Before installing the outboard motor(s), con- right propeller for your boating needs. Select firm that the total horsepower of your out-...

  • Page 15: Engine Oil Requirements

    Use only fresh gasoline that has been stored in clean containers. EMU36880 Muddy or acidic water Yamaha strongly recommends that you have your dealer install the optional chromium-plat- ed water pump kit if you use the outboard mo-...

  • Page 16: Anti-Fouling Paint

    (including metric sizes), and electrical tape. Waterproof flashlight with extra batteries. An extra engine shut-off cord (lanyard) with clip. Spare parts, such as an extra set of spark plugs. 1. Fuel requirement label location Consult your Yamaha dealer for details.
  • Page 17 Specifications and requirements ZMU04494...

  • Page 18: Components

    EMU2579V Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). F2.5A 1. Top cowling 16.Clamp screw 2. Cowling lock lever(s) 17.Restraint cable attachment 3. Carrying handle 18.Gear shift lever...

  • Page 19: Fuel Tank Cap

    Components 1. Fuel tank cap 1. Close position 2. Air vent screw EMU25891 Open EMU25850 Fuel tank cap With the lever/knob in this position, fuel flows This cap seals the fuel tank. When removed, to the carburetor. the tank can be filled with fuel. To remove the Normal running is done with the lever/knob in cap, turn it counterclockwise.

  • Page 20: Gear Shift Lever

    Components EMU25930 Gear shift lever Pulling the gear shift lever towards you puts the engine in forward gear so that the boat moves ahead. 1. Throttle indicator EMU25976 Throttle friction adjuster A friction device provides adjustable resis- tance to movement of the throttle grip or the 1.

  • Page 21: Engine Shut-Off Cord (Lanyard) And Clip

    Components EMU25994 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run. The cord should be attached to a secure place on the operator’s clothing, or arm or leg. Should the operator fall overboard or leave the helm, the cord will pull out the clip, stopping ignition to the engine.

  • Page 22: Steering Friction Adjuster

    Components EMU26122 EMU30201 Steering friction adjuster Tilt support lever for manual tilt model A friction device provides adjustable resis- To keep the outboard motor in the tilted up po- tance to the steering mechanism, and can be sition, lock the tilt support lever to the clamp set according to operator preference.

  • Page 23: Carrying Handle

    Components 1. Cowling lock lever(s) 1. Cowling lock lever(s) EMU26450 Carrying handle A carrying handle is provided on the rear of the outboard motor. It enables you to carry the outboard motor easily with one hand.

  • Page 24: Installation

    Installation 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 25: Clamping The Outboard Motor

    Consult your Yamaha dealer or boat manufacturer for further information on determining the prop- er mounting height. For instructions on setting the trim angle of the outboard motor, see page 30.
  • Page 26 Installation packaging. If used, they must be of at least the same quality of material and strength and must be tightened se- curely. After tightening, test run the engine and check their tightness. [EWM00651]...

  • Page 27: Operation

    Operation EMU36381 For the first hour of operation: First-time operation Run the engine at varying speeds up to EMU37631 2000 r/min or approximately half throttle. Fill engine oil For the second hour of operation: The engine is shipped from the factory without Increase engine speed as much as nec- engine oil.

  • Page 28: Remove Cowling

    Operation an emergency reserve. With the boat level on If any fuel leakage is found, the fuel sys- a trailer or in the water, check the fuel level. tem must be repaired by a qualified me- For fuel filling instructions, see page 24. chanic.

  • Page 29: Engine

    If the Check the propeller for damage. top cowling is loose, have it repaired by your Check for engine oil leaks. Yamaha dealer. EMU36941 Install cowling Be sure that all cowling lock levers are re- leased.

  • Page 30: Operating Engine

    Operation EWM01830 Tighten the filler cap securely. WARNING 10. Wipe up any spilled gasoline immediately Gasoline and its vapors are highly flam- with dry rags. Dispose rags properly ac- mable and explosive. Always refuel ac- cording to local laws or regulations. cording to this procedure to reduce the EMU27452 Operating engine...

  • Page 31: Starting Engine

    Operation Open the fuel cock. Place the gear shift lever in neutral. WARNING! Always start the engine in neutral to avoid accidentally moving the boat. [EWM00111] EMU27494 Starting engine EWM01600 WARNING If the engine shut-off cord is equipped, at- Before starting the engine, make sure that tach it to a secure place on your clothing, the boat is tightly moored and that you can or your arm or leg.

  • Page 32: Checks After Starting Engine

    Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your Yamaha dealer if the prob- lem cannot be located and corrected. After the engine starts, slowly return the manual starter handle to the original posi- tion before releasing it.

  • Page 33: Warming Up Engine

    Operation Restart the engine, and then check that the engine stops when the clip is pulled from the engine shut-off switch. Check that the engine cannot be started with the clip removed from the engine shut- off switch. EMU34891 Shifting EWM00180 WARNING Before shifting, make sure there are no...

  • Page 34: Stopping Engine

    Operation TIP: The outboard motor can be turned a full 360° in its bracket (full-pivot system). Move the gear shift lever firmly and crisp- ly toward the stern. EMU27821 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed.

  • Page 35: Trimming Outboard Motor

    Operation After stopping the engine, tighten the air prove performance and fuel economy while vent screw on the fuel tank cap and set reducing strain on the engine. Correct trim an- the fuel cock to the closed position. gle depends upon the combination of boat, engine, and propeller.

  • Page 36: Adjusting Boat Trim

    Operation cy to steer to one side or the other. Compen- sate for this as you steer. When the bow of the boat is down, it is easier to accelerate from a standing start onto plane. 1. Trim rod Reposition the rod in the desired hole. To raise the bow (“trim-out”), move the rod away from the transom.

  • Page 37: Tilting Up And Down

    Operation the bow is greatly increased, heightening the EWM00222 WARNING danger of “bow steering” and making opera- Make sure that no one is near the outboard tion difficult and dangerous. motor when tilting the outboard motor up or down. Otherwise, body parts could be crushed between the outboard motor and the clamp bracket.

  • Page 38: Procedure For Tilting Down (Manual Tilt Models)

    Operation Tilt support knob equipped models: Hold the rear of the top cowling with one hand, fully tilt the outboard motor up, and push the tilt support knob into the clamp brack- Tilt support lever equipped models: Hold the carrying handle and tilt the engine up fully until the tilt support lever automati- cally locks.

  • Page 39: Cruising In Other Conditions

    Cruising in muddy, turbid, or acidic water Yamaha strongly recommends that you use the optional chromium-plated water pump kit (see page 10) if you use the outboard motor in acidic water or water with a lot of sediment in it, such as muddy or turbid (cloudy) water.

  • Page 40: Maintenance

    Leaking fuel is a fire hazard. When trans- position using a motor support device such as porting and storing the outboard motor, a transom saver bar. Consult your Yamaha disconnect the fuel line from the out- dealer for further details.

  • Page 41: Storing Outboard Motor

    It is advisable to have your outboard motor Install the outboard motor on the test serviced by an authorized Yamaha dealer pri- tank. or to storage. However, you, the owner, with a minimum of tools, can perform the following procedures.
  • Page 42 Maintenance Loosen the air vent screw by one turn. Place the fuel cock in the open position. 10. Remove the grommet. Place a container under the carburetor drain hole to catch the gasoline, and then loosen the drain screw. 1. Water surface 2.

  • Page 43: Lubrication

    EMU28511 Replacement parts If replacement parts are necessary, use only genuine Yamaha parts or parts of equivalent design and quality. Any part of inferior quality may malfunction, and the resulting loss of control could endanger the operator and pas- sengers.

  • Page 44: Severe Operating Conditions

    Outboard motors operating under any of these above conditions require more frequent maintenance. Yamaha recommends that you do this service twice as often as specified in the maintenance chart. For example, if a par- ticular service should be done at 50 hours, do it instead at 25 hours.

  • Page 45: Maintenance Chart 1

    When operating in salt water, muddy, other turbid (cloudy), acidic 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 46 Maintenance Initial Every Item Actions 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Fuel line (Low pres- Inspection or replace- sure) ment as necessary Fuel/engine oil leakage Inspection Gear oil Replacement Greasing points Greasing Impeller/water pump Inspection or replace-...

  • Page 47: Maintenance Chart 2

    Maintenance EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Exhaust guide/exhaust Inspection or replace- manifold ment as necessary EMU28943 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) F2.5A...

  • Page 48: Cleaning And Adjusting Spark Plug

    Do not attempt to di- agnose any problems yourself. Instead, take the outboard motor to a Yamaha dealer. You 1. Spark plug gap should periodically remove and inspect the 2.

  • Page 49: Changing Engine Oil

    For idle speed specifications, see spilled oil immediately. page 8. If you have difficulty verifying the idle speed, or the idle speed requires ad- justment, consult a Yamaha dealer or other qualified mechanic. EMU3022A Changing engine oil Change the engine oil several minutes after the engine has been stopped, so that the oil is still warm, but not hot.

  • Page 50: Inspecting Wiring And Connectors

    0.4 L (0.42 US qt, 0.35 Imp.qt) Dispose of used oil according to local regulations. TIP: For more information on the disposal of used oil, consult your Yamaha dealer. Change the oil more often when operating the engine under adverse conditions such as extended trolling. EMU29114...

  • Page 51: Removing Propeller

    Make sure to use a new cotter pin and bend the ends over securely. Otherwise, the propeller could come off during opera- tion and be lost. Apply Yamaha marine grease or a corro- sion resistant grease to the propeller shaft. Check the propeller shaft oil seal for dam- Install the spacer (if equipped), thrust age.

  • Page 52: Changing Gear Oil

    Severe injury could oc- outboard motor. [ECM00713] cur if the outboard motor accidentally TIP: falls. For disposal of used oil, consult your Yamaha Tilt the outboard motor so that the gear oil dealer. drain screw is at the lowest point possi- ble.

  • Page 53: Inspecting And Replacing Anode(S)

    0.075 L (0.079 US qt, 0.066 Imp.qt) TIP: 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. Put a new gasket on the oil level plug.

  • Page 54: 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 55 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 56 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 57: Temporary Action In Emergency

    A. Tighten bolt. EWM01452 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 Make sure the remote control lever is in neutral.

  • Page 58: 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 59 Trouble Recovery Remove the starter case by pulling it to- 10. Prepare the engine for starting; see page wards you. 26. Be sure the engine is in neutral and that the clip is attached to the engine shut-off switch. 11. Turn the lever on the carburetor to oper- ate the choke system when the engine is cold.

  • Page 60: Treatment Of Submerged Motor

    EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immediate- ly. NOTICE: Do not attempt to run the out- board motor until it has been completely inspected.
  • Page 62 YAMAHA MOTOR CO., LTD. Printed in France April 2010–0.3 × 1 CR...

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