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

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F2.5
OWNER'S MANUAL
U.S.A.Edition
Read this manual carefully before operating this
LIT-18626-08-01
outboard motor.
69M-F8199-17

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Summary of Contents for Yamaha F2.5

  • Page 1 F2.5 OWNER’S MANUAL U.S.A.Edition Read this manual carefully before operating this LIT-18626-08-01 outboard motor. 69M-F8199-17...
  • Page 2 ZMU01690 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 EMU31283 your machine and this manual. 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- TIP: mation needed for proper operation, mainte- The F2.5MH and the standard accessories...

  • Page 4: Table Of Contents

    Table of contents Safety information......1 Propeller selection ......13 Outboard motor safety ....1 Engine oil requirements ....14 Propeller ..........1 Fuel requirements ......14 Rotating parts ........1 Gasoline ........... 14 Hot parts..........1 Ring Free Fuel Additive ....15 Electric shock ........
  • Page 5 Procedure for tilting down IMPORTANT WARRANTY (manual tilt models)....... 40 INFORMATION IF YOU USE Cruising in other conditions ... 40 YOUR YAMAHA OUTSIDE Maintenance........41 THE USA OR CANADA ..... 65 Transporting and storing outboard motor .......... 41 Clamp screw mounting models ..41 Storing outboard motor.....

  • 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. EMU36500 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 You may also want to consider an Internet- make it hard for others to avoid you or un- based program for basic boater education. derstand where you are going. The Online Boating Safety Course provided Avoid areas with submerged objects or by the BoatU.S.

  • Page 9: Boating Organizations

    Safety information Contact the U.S. Coast Guard, the National www.nmma.org Association of State Boating Law Administra- tors, or your local Power Squadron for a com- Marine Retailers Association of America plete set of rules governing the waters in 155 N. Michigan Ave. Chicago, which you will be using your boat.

  • Page 10: Rules When Encountering Vessels

    Safety information vessel. Normally, you should not cross in front of the vessel with the right-of-way. You should slow down or change directions briefly and pass behind the other vessel. You should al- ways move in such a way that the operator of the other vessel can see what you are doing.

  • Page 11: Other Special Situations

    Safety information Fishing vessel right-of-way All vessels that are fishing with nets, lines or trawls are considered to be “fishing vessels” under the International Rules. Vessels with trolling lines are not considered fishing ves- sels. Fishing vessels have the right-of-way re- gardless of position.
  • Page 12 Safety information Many bodies of water used by boaters are en- white with black letters and orange boarders. tirely within the boundaries of a particular They signify speed zones, restricted areas, state. The Uniform State Waterway Marking danger areas, and general information. System has been devised for these waters.

  • Page 13: 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- len. 1. Outboard motor serial number location...

  • Page 14: 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. EMU33831 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F2.5...
  • Page 15 General information ZMU05810 Read Owner’s Manual EMU35132 Symbols The following symbols mean as follows. Notice/Warning ZMU05664 ZMU05696...
  • Page 16 General information Hazard caused by continuous rotation ZMU05665 Electrical hazard ZMU05666...

  • Page 17: Specifications And Requirements

    Specifications and requirements EMU34520 Ignition system: Specifications TIP: Spark plug (NGK): “(AL)” stated in the specification data below BR6HS represents the numerical value for the alumi- Spark plug gap: num propeller installed. 0.6–0.7 mm (0.024–0.028 in) Likewise, “(SUS)” represents the value for Control system: stainless steel propeller installed and “(PL)”...

  • Page 18: Installation Requirements

    Overpowering a boat can cause severe in- ate. stability. Your Yamaha dealer can help you select the right propeller for your boating needs. Select Before installing the outboard motor(s), con- a propeller that will allow the engine to reach...

  • Page 19: Engine Oil Requirements

    If knocking or pinging 10W-30 or 10W-40 occurs, use a different brand of gasoline or Engine oil grade API: premium unleaded fuel. Yamaha recomends SE, SF, SG, SH, SJ, SL Engine oil quantity: that you use alcohol-free (see Gasohol) gas- 0.4 L (0.42 US qt, 0.35 Imp.qt)

  • Page 20: Ring Free Fuel Additive

    Ethanol can be used if the ethanol While many additives available may reduce content does not exceed 10% and the fuel deposits, Yamaha recommends the use of meets the minimum octane ratings. E85 is a Ring Free Fuel Additive, available from your fuel containing 85% ethanol and must not be Yamaha dealer.

  • Page 21: Motor Disposal Requirements

    An extra engine shut-off cord (lanyard) with the swivel bracket. clip. Spare parts, such as an extra set of spark plugs. Consult your Yamaha dealer for details. EMU25221 Emission control information EMU25230 North American models This engine conforms to U.S. Environmental Protection Agency (EPA) regulations for ma- rine SI engines.
  • Page 22 Specifications and requirements ZMU01703 1. Star labels location EMU25300 Three Stars—Ultra Low Emission EMU25280 One Star—Low Emission The three-star label identifies engines that The one-star label identifies engines that meet the Air Resources Board’s 2008 ex- meet the Air Resources Board’s 2001 ex- haust emission standards.
  • Page 23 Specifications and requirements ZMU05663...

  • Page 24: Components

    Components EMU2579J Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models. F2.5 1. Top cowling 17.Gear shift lever 2. Top cowling lock lever 18.Choke knob 3. Carrying handle...

  • Page 25: 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 26: 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 EMU25974 Throttle friction adjuster A friction device provides adjustable resis- tance to movement of the throttle grip or the 1.

  • Page 27: Engine Shut-Off Cord (Lanyard) And Clip

    Components EMU25993 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 28: 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 29: Carrying Handle

    Components 1. Top 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 30: 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 31: 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 36.
  • Page 32 Installation your Yamaha dealer. WARNING! Avoid using bolts, nuts or washers other than those contained in the engine 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.

  • Page 33: Operation

    Operation EMU36380 TIP: First-time operation Failure to follow the break-in procedure could EMU37630 Fill engine oil result in reduced engine life or even severe The engine is shipped from the factory without engine damage. Run the engine in the water, engine oil.

  • Page 34: Fuel Level

    Operation ECM00120 EMU36442 Fuel system NOTICE EWM00060 Do not start the engine out of water. Over- WARNING heating and serious engine damage can Gasoline and its vapors are highly flam- occur. mable and explosive. Keep away from sparks, cigarettes, flames, or other sourc- EMU36560 Fuel level es of ignition.

  • Page 35: Engine Oil

    Operation 1. Clip 1. Lower level mark 2. Cord 2. Upper level mark EMU30215 EMU27151 Engine oil Engine Put the outboard motor in an upright po- Check the engine and engine mounting. sition (not tilted). Look for loose or damaged fasteners. Remove the top cowling.

  • Page 36: Filling Fuel For Built-In Tank

    If the ered. top cowling is loose, have it repaired by your Do not smoke and keep away from Yamaha dealer. sparks, flames, static electric discharge, or other sources of ignition. If you use a portable container to store and dispense fuel, only use a locally ap- proved GASOLINE container.

  • Page 37: Operating Engine

    Operation EMU27451 Operating engine EMU31510 Feeding fuel EWM00420 WARNING Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions. Be sure there are no swimmers in the water near you. When the air vent screw is loosened, EMU27492 Starting engine...
  • Page 38 Operation Place the gear shift lever in neutral. Place the choke knob in the “ ” WARNING! Always start the engine in (start) position. After the engine starts, re- neutral to avoid accidentally moving turn the knob to the “ ”...

  • Page 39: Checks After Starting Engine

    30 seconds after starting. the cooling water pilot hole is blocked. EMU36530 Checks after engine warm-up Consult your Yamaha dealer if the prob- EMU37540 lem cannot be located and corrected. Shifting While tightly moored, and without applying throttle, confirm that the engine shifts smooth- ly into forward and back to neutral.

  • Page 40: Shifting

    Operation Confirm that the engine cannot be started with the clip removed from the engine shut- off switch. EMU34890 Shifting EWM00180 WARNING Before shifting, make sure there are no swimmers or obstacles in the water near you. Move the gear shift lever firmly and crisp- ECM01610 NOTICE ly toward the stern.

  • Page 41: Stopping Engine

    Operation After stopping the engine, tighten the air vent screw on the fuel tank cap and set the fuel cock to the closed position. EMU27821 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- TIP: ping the engine immediately after operating at The engine can also be stopped by pulling the...

  • Page 42: Adjusting Trim Angle For Manual Tilt Models

    Operation prove performance and fuel economy while reducing strain on the engine. Correct trim an- gle depends upon the combination of boat, engine, and propeller. Correct trim is also af- fected by variables such as the load in the boat, sea conditions, and running speed. 1.

  • Page 43: Tilting Up And Down

    Operation 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” and making opera- also be adjusted to help offset this effect. tion difficult and dangerous.

  • Page 44: Procedure For Tilting Up (Manual Tilt Models)

    Operation EWM00221 WARNING Be sure all people are clear of the out- board motor when tilting up and down, Body parts can be crushed between the motor and the clamp bracket when the mo- tor is trimmed or tilted. EWM00230 WARNING Leaking fuel is a fire hazard.

  • Page 45: Procedure For Tilting Down (Manual Tilt Models)

    Cruising in muddy, turbid, or acidic water EMU28033 Yamaha strongly recommends that you use Procedure for tilting down (manual tilt the optional chromium-plated water pump kit models) (see page 15) if you use the outboard motor in Slightly tilt the outboard motor up.

  • Page 46: Maintenance

    If there is insufficient road clearance in this position, then trailer the outboard motor in the tilt posi- tion using a motor support device such as a transom saver bar. Consult your Yamaha dealer for further details.

  • Page 47: Storing Outboard Motor

    TIP: It is advisable to have your outboard motor The use of “Yamaha Fuel Conditioner and serviced by an authorized Yamaha dealer pri- Stabilizer” eliminates the need to drain the or to storage. However, you, the owner, with a fuel system.

  • Page 48: Lubrication

    Seal el of the anti-cavitation plate, or if the replacement should be performed by an water supply is insufficient, engine authorized Yamaha dealer prior to use. seizure may occur. Grease all grease fittings. For further de- [ECM00291] Cooling system flushing is essential to tails, see page 47.

  • Page 49: Checking Painted Surface Of Motor

    Yamaha marine dealership. TIP: A service manual is available for purchase For cooling system flushing instructions, see through your Yamaha dealer for owners who page 41. have the mechanical skills, tools, and other EMU28460 Checking painted surface of motor...

  • Page 50: 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 51 Maintenance Initial Every Item Actions 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Fuel filter (inside built- Inspection and clean- in fuel tank) ing as necessary Fuel line(High pres- Inspection sure) Fuel line(High pres- Inspection or replace- sure) ment as necessary...

  • Page 52: Maintenance Chart 2

    (5 years) Inspection and clean- Fuel tank (built-in tank) ing as necessary EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Guide exhaust/ex- Inspection or replace- haust manifold ment as necessary EMU28932 Greasing Yamaha marine grease (Water resistant grease) F2.5...

  • Page 53: 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 54: Changing Engine Oil

    Loosen and remove the drain screw fying the idle speed, or the idle speed requires while holding the container under the adjustment, consult a Yamaha dealer or other drain hole. Then remove the oil filler cap. qualified mechanic. Let the oil drain completely. Wipe up any Verify whether the idle speed is set to spilled oil immediately.

  • Page 55: Checking Wiring And Connectors

    Dispose of used oil according to local 0.4 L (0.42 US qt, 0.35 Imp.qt) 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. EMU29112...

  • Page 56: Removing Propeller

    Be sure to use a new cotter pin and bend the ends over securely. Otherwise the pro- peller could come off during operation and be lost. Apply Yamaha marine grease or a corro- Check the propeller shaft oil seal for dam- sion resistant grease to the propeller age.

  • Page 57: Changing Gear Oil

    NOTICE: Do not reuse the cotter pin dicate lower unit problem. Consult installed. Otherwise the propeller can your Yamaha dealer. [ECM01900] come off during operation. [ECM01890] 1. Gear oil drain screw 2.

  • Page 58: Inspecting And Replacing Anode(S)

    Maintenance which can cause gear damage. Con- EMU29312 Inspecting and replacing anode(s) sult a Yamaha dealer for repair of the Yamaha outboard motors are protected from lower unit seals. [ECM00711] corrosion by sacrificial anodes. Inspect the TIP: external anodes periodically. Remove scales For disposal of used oil, consult your Yamaha from the surfaces of the anodes.

  • Page 59: 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 60 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 61 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 62: 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 63: 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 64 Trouble Recovery Remove the starter case by pulling it to- 10. Prepare the engine for starting; see page wards you. 32. 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 65: 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 66: Consumer Information

    Consumer information EMU29811 Important warranty information for U.S.A. and Canada...
  • Page 67 Consumer information...

  • Page 68: Yamaha Motor

    Consumer information EMU29830 YAMAHA MOTOR CORPORATION, U.S.A. FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY...
  • Page 69 Consumer information...

  • Page 70: Important Warranty Information If You Use Your Yamaha Outside The Usa Or Canada

    Consumer information EMU29841 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE USA OR CANADA...
  • Page 72 YAMAHA MOTOR CORPORATION, USA Printed in France April 2008–0.3 × 1 CR...

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