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

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See also: Service Manual , Owner's Manual
F2.5A
F4B
F5A
F6C
OWNER'S MANUAL
Read this manual carefully before operating this
outboard motor.
6BV-F8199-74-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. 6BV-F8199-74-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: Important Manual Information

    If EMU25108 To the owner there is any question concerning this manual, Thank you for selecting a Yamaha outboard please consult your Yamaha dealer. motor. This Owner’s Manual contains infor- To ensure long product life, Yamaha recom-...

  • Page 4: Table Of Contents

    Tilt lock mechanism (F4B, F5A, Specifications and requirements... 12 F6C) ..........27 Specifications........ 12 Tilt support bar (F4B, F5A, F6C)..28 Tilt support lever (F2.5A) ....28 Installation requirements....14 Cowling lock lever ......28 Boat horsepower rating....14 Carrying handle ........ 29 Mounting the outboard motor ..
  • Page 5 Table of contents Operation ......... 34 Cruising in other conditions..58 First-time operation....... 34 Fill engine oil ........34 Maintenance........59 Breaking in engine......34 Transporting and storing outboard Getting to know your boat ....34 motor ......... 59 Checks before starting engine ..34 Transporting/Dismounting the Fuel level ..........

  • Page 6: Safety Information

    Safety information EMU33623 EMU33672 Outboard motor safety Engine shut-off cord (lanyard) Attach the engine shut-off cord so that the Observe these precautions at all times. engine stops if the operator falls overboard or EMU36502 Propeller leaves the helm. This prevents the boat from People can be injured or killed if they come in running away under power and leaving peo- contact with the propeller.

  • Page 7: Carbon Monoxide

    Overloading incorrect weight Have an approved PFD on board for every distribution can compromise the boats han- occupant. Yamaha recommends that you dling and lead to an accident, capsizing or must wear a PFD whenever boating. At a swamping.

  • Page 8: Weather

    Safety information EMU33891 Boating safety publications Be informed about boating safety. Additional publications and information can be obtained from many boating organizations. EMU33601 Laws and regulations Know the marine laws and regulations where you will be boating- and obey them. Several sets of rules prevail according to geographic ZMU06025 location, but all are basically the same as the...

  • Page 9: 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- EMU37292 len.
  • Page 10 General information F4B, F5A, F6C ZMU06712 1. CE marking location ZMU06304...

  • Page 11: 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. EMU33834 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F2.5AMH...
  • Page 12 General information ZMU08049 EMU33923 Contents of labels EWM01712 The above warning labels mean as follows. WARNING  Read Owner’s Manuals and labels. EWM01702  Wear an approved personal flotation de- WARNING vice (PFD). Gasoline is highly flammable and explo-  Ensure shift control is in neutral before sive.
  • Page 13 General information Electrical hazard EMU35133 Symbols The following symbols mean as follows. Notice/Warning ZMU05666 ZMU05696 Read Owner’s Manual ZMU05664 Hazard caused by continuous rotation ZMU05665...

  • Page 14: Warning Labels

    General information EMU42711 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F4BMH, F5AMH, F6CMH ZMU06795...
  • Page 15 General information ZMU07405 EMU42761 Contents of labels EWM01672 The above warning labels mean as follows. WARNING  Read Owner’s Manuals and labels. EWM01692  Wear an approved personal flotation de- WARNING vice (PFD). Emergency starting does not have start-  Attach engine shut-off cord (lanyard) to in-gear protection.
  • Page 16 General information Hazard caused by continuous rotation EWM01702 WARNING Gasoline is highly flammable and explo- sive. Shut off engine before refueling. Tighten tank cap and air vent screw when not in use. EMU42751 Symbols The following symbols mean as follows. ZMU05665 Notice/Warning Electrical hazard...

  • Page 17: Specifications And Requirements

    Specifications and requirements Performance: EMU38092 Specifications Full throttle operating range: TIP: F2.5AMH 5250–5750 r/min “(AL)” stated in the specification data below F4BMH 4000–5000 r/min represents the numerical value for the alumi- F5AMH 4500–5500 r/min num propeller installed. F6CMH 4500–5500 r/min EMU2821U Rated power: F2.5AMH 1.8 kW (2.5 HP)
  • Page 18 Specifications and requirements Spark plug gap: Recommended engine oil grade 1: 0.6–0.7 mm (0.024–0.028 in) SAE 10W-30/10W-40/5W-30 Steering system: API SE/SF/SG/SH/SJ/SL Tiller handle Engine oil quantity: Starting system: F2.5AMH 0.35 L (0.37 US qt, Manual starter 0.31 Imp.qt) Starting carburetion system: Engine oil quantity: Choke valve F4BMH 0.6 L (0.63 US qt, 0.53 Imp.qt)

  • Page 19: Installation Requirements

    When installing a battery, the lighting coil kit WARNING must be installed. For installation of the bat- Overpowering a boat can cause severe in- tery and lighting coil kit, consult a Yamaha stability. dealer. EMU34196 Before installing the outboard motor(s), con-...

  • Page 20: Start-In-Gear Protection (F4B, F5A, F6C)

    If you carry F5A, F6C) loads that vary widely, select the propeller Yamaha outboard motors are equipped with that lets the engine run in the proper range for start-in-gear protection device. This feature your maximum load but remember that you...

  • Page 21: Fuel Requirements

    122˚F blends containing more than 10% ethanol 50˚C can cause fuel system damage or cause en- 15W–40 gine starting and running problems. Yamaha 20W–40 does not recommend gasohol containing methanol because it can cause fuel system 20W–50 damage or engine performance problems.

  • Page 22: Outboard Motor Disposal Requirements

     A tool kit with assorted screwdrivers, pliers, wrenches (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. Consult your Yamaha dealer for details.

  • Page 23: Components

    Components EMU2579Z Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). F2.5AMH 1. Top cowling 16.Clamp screw 2. Cowling lock lever(s) 17.Restraint cable attachment 3. Carrying handle 18.Gear shift lever 4.

  • Page 24: Fuel Tank (Built-In Fuel Tank)

    Components F4BMH, F5AMH, F6CMH 21 19 ZMU06715 1. Top cowling 22.Clamp screw 2. Cowling lock lever 23.Restraint cable attachment 3. Carrying handle 24.Tilt support bar 4. Anti-cavitation plate 25.Gear shift lever 5. Propeller* EMU39545 Fuel tank (built-in fuel tank) 6. Cooling water inlet 7.

  • Page 25: Fuel Tank (Portable Fuel Tank) (F4B, F5A, F6C)

    Components F2.5A 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. ZMU07357 1. Air vent screw 2. Fuel tank cap 3.
  • Page 26 1. Fuel cock 2. Closed position ZMU06880 EMU42811 Open 1. Fuel cock F2.5A 2. Closed position With the lever/knob in this position, fuel flows 3. Built-in fuel tank position to the carburetor. 4. Portable fuel tank position Normal running is done with the lever/knob in...

  • Page 27: Tiller Handle

    Components F2.5A ZMU07358 1. Open position 1. Tiller handle F4B, F5A, F6C F4B, F5A, F6C To send fuel from the fuel tank to the carbu- retor, align the fuel cock with the position for the built-in fuel tank or portable fuel tank ac- cording to which fuel tank is being used.

  • Page 28: Throttle Grip

    The throttle grip is on the tiller handle. Turn is fully closed. the grip counterclockwise to increase speed and clockwise to decrease speed. F2.5A ZMU06877 1. Fully open ZMU07359 2. Fully closed 1.

  • Page 29: Throttle Friction Adjuster

    Avoid accidentally pulling the cord during an accident. [EWM02262] normal operation. Loss of engine power F2.5A means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause peo- ple and objects in the boat to be thrown forward.

  • Page 30: Engine Stop Button

    Components F2.5A F2.5A ZMU07362 1. Clip 1. Engine stop button 2. Engine shut-off cord (lanyard) F4B, F5A, F6C 3. Engine shut-off switch F4B, F5A, F6C ZMU06726 1. Engine stop button ZMU06725 EMU26014 Choke knob for pull type 1. Engine shut-off switch To supply the engine with the rich fuel mix- 2.

  • Page 31: Fuel Joint Cap (F4B, F5A, F6C)

    Components F4B, F5A, F6C F2.5A ZMU06784 ZMU07364 1. Choke knob 1. Manual starter handle F4B, F5A, F6C EMU39724 Fuel joint cap (F4B, F5A, F6C) The fuel joint is equipped with the fuel joint cap. WARNING! When not using a portable fuel tank, make sure to install the fuel joint cap.

  • Page 32: Trim Rod (Tilt Pin)

    Components F2.5A F2.5A ZMU07365 ZMU07366 1. Steering friction adjuster 1. Trim rod F4B, F5A, F6C F4B, F5A, F6C ZMU06843 ZMU06729 1. Steering friction adjuster 1. Trim rod To increase resistance, turn the steering fric- EMU39364 Tilt lock mechanism (F4B, F5A, F6C) tion adjuster clockwise.

  • Page 33: Tilt Support Bar (F4B, F5A, F6C)

    Components 2. Tilted up position 3. Shallow water cruising position EMU42601 Tilt support lever (F2.5A) To keep the outboard motor in the tilted up position, lock the tilt support lever to the clamp bracket. ZMU06838 1. Gear shift lever 2. Reverse position...

  • Page 34: Carrying Handle

    Components F2.5A F4B, F5A, F6C The carrying handle is used to carry the out- board motor. For information on carrying and transporting the outboard motor, see page ZMU07368 1. Cowling lock lever F4B, F5A, F6C ZMU06787 1. Carrying handle ZMU06850 1.

  • Page 35: Installation

    If you are not able to the water, move it to an area on land. mount the outboard motor properly, To prevent steering movement, turn the consult a Yamaha dealer. steering friction adjuster clockwise. EMU42941 Mounting the outboard motor F2.5A...
  • Page 36 Installation Mount the outboard motor on the center line (keel line) of the boat, and ensure that the boat itself is well balanced. Other- wise the boat will be hard to steer. For boats without a keel or which are asym- metrical, consult your dealer.

  • Page 37: Clamping The Outboard Motor

    Test runs at different heights can help de- 0–25mm (0–1in) termine the optimum mounting height. Consult your Yamaha dealer or boat man- ufacturer for further information on deter- ZMU07370 mining the proper mounting height. 1. Idle hole ...
  • Page 38 Attach one end to the restraint cable at- tachment and the other to a secure mounting point on the boat. Otherwise the engine could be completely lost if it accidentally falls off the transom. F2.5A ZMU07509 1. Restraint cable attachment F4B, F5A, F6C ZMU06812...

  • Page 39: Operation

    Operation EMU36382 EMU40061 First-time operation Procedure for 4-stroke models Your new engine requires a period of 10 EMU36393 Fill engine oil hours break-in to allow mating surfaces of The engine is shipped from the factory with- moving parts to wear in evenly. out engine oil.

  • Page 40: Fuel Level

    F2.5A EWM00911 WARNING Leaking fuel can result in fire or explosion.  Check for fuel leakage regularly.

  • Page 41: Engine Shut-Off Cord (Lanyard)

    1. Clip 2. Engine shut-off cord (lanyard) ZMU06851 EMU42861 Engine oil F2.5A Put the outboard motor in an upright po- sition (not tilted). Remove the top cowling. Check the oil level using the oil level check window to be sure the level falls between the upper and lower marks.

  • Page 42: Engine

     Look for loose or damaged fasteners.  Check the propeller for damage.  Check for engine oil leaks. EMU42981 Installing top cowling F2.5A Be sure that all cowling lock levers are ZMU06769 released. 1. Oil filler cap Be sure that the rubber seal is seated all 2.
  • Page 43 F4B, F5A, F6C Check the rubber seal for damage. If the rubber seal is damaged, have it replaced by a Yamaha dealer. Align the fuel tank cap and manual start- er handle with their respective holes in the top cowling.

  • Page 44: Filling Fuel

    Operation  Gasoline is poisonous and can cause in- jury or death. Handle gasoline with care. Never siphon gasoline by mouth. If you should swallow some gasoline or inhale a lot of gasoline vapor, or get some gas- oline in your eyes, see your doctor im- mediately.
  • Page 45 Operation ZMU06753 ZMU06810 1. Fuel hose Fuel tank capacity (built in type): 2. Fuel joint cap F2.5AMH 0.9 L (0.24 US gal, Remove the portable fuel tank from the 0.20 Imp.gal) F4BMH 1.1 L (0.29 US gal, boat. 0.24 Imp.gal) Remove the fuel tank cap.

  • Page 46: Operating Engine

    Keep cockpit and cabin ar- eas well ventilated. Avoid blocking ex- haust outlets. EMU42872 Sending fuel Sending fuel for built-in fuel tank (F2.5A) Loosen the air vent screw on the fuel ZMU06740 tank cap by one turn. 1. Air vent screw Align the fuel cock with the built-in fuel tank position.
  • Page 47 Operation ZMU06720 1. Built-in fuel tank position 1. Air vent screw Remove the top cowling, and then If there is fuel in the built-in fuel tank, squeeze the primer pump in the bottom loosen the air vent screw by 1 or 2 turns cowling repeatedly until you feel it be- to prevent pressure from increasing in- come slightly firm.

  • Page 48: Starting Engine

    Operation sure to keep the portable fuel tank hori- zontal. Otherwise, fuel cannot be drawn from the fuel tank. ZMU06743 1. Fuel hose 2. Fuel joint cap 1. Arrow EMU27495 Starting engine EWM01601 WARNING Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions.
  • Page 49 This could cause people and objects in the boat to be thrown forward. Procedure for starting outboard motor (F2.5A) Place the gear shift lever in neutral. WARNING! Always start the engine in neutral to avoid accidentally moving the boat.
  • Page 50 Operation ZMU06749 1. Neutral position After the engine starts, slowly return the Attach the engine shut-off cord to a se- manual starter handle to the original po- cure place on your clothing, or your arm sition before releasing it. or leg. Then, install the clip on the other Slowly return the throttle grip to the fully end of the cord to the engine shut-off closed position.

  • Page 51: Checks After Starting Engine

    Operation TIP: If the ambient temperature is -15°C (5°F) or less, turn the throttle grip so that the engine start mark “ ” is positioned past the notch in the tiller handle. ZMU06746 After the engine starts, slowly return the manual starter handle to its original posi- tion before releasing it.

  • Page 52: Warming Up Engine

     In temperatures of -5°C (23°F) or less, leave or the cooling water pilot hole is blocked. the choke knob pulled out fully for approx- Consult your Yamaha dealer if the prob- imately 30 seconds after starting. lem cannot be located and corrected.
  • Page 53 Otherwise, the shift mechanism could be damaged. F2.5A To shift out of neutral (forward) Move the gear shift lever firmly and crisply to- To shift from in gear to neutral ward the bow.

  • Page 54: Stopping Boat

    Stop- ping the engine immediately after operating at high speed is not recommended. EMU42891 Procedure F2.5A Push and hold the engine stop button until the engine comes to a complete stop. ZMU06749 1.
  • Page 55 Operation ZMU06867 1. Engine shut-off switch 2. Engine shut-off cord (lanyard) 3. Clip Tighten the air vent screw on the fuel tank cap. TIP: The engine can also be stopped by pulling the cord and removing the clip from the en- gine shut-off switch.

  • Page 56: Trimming Outboard Motor

    Correct trim is also affected by variables such as the load in the boat, sea conditions, and running speed. ZMU06871 F2.5A 1. Closed position When using a portable fuel tank, discon- nect the fuel hose, and then install the fuel joint cap.

  • Page 57: Adjusting Trim Angle For Manual Tilt Models

    Operation F4B, F5A, F6C Tilt the outboard motor up, and then re- move the trim rod from the clamp brack- F2.5A ZMU07372 1. Trim rod F4B, F5A, F6C ZMU06754 1. Trim operating angle EMU42831 Adjusting trim angle for manual tilt...

  • Page 58: Adjusting Boat Trim

    Operation Bow Down EMU27913 Adjusting boat trim Too much trim-in causes the boat to “plow” When the boat is on plane, a bow-up attitude through the water, decreasing fuel economy results in less drag, greater stability and effi- and making it hard to increase speed. Oper- ciency.

  • Page 59: Procedure For Tilting Up

    180° (facing the rear). EMU42931 Procedure for tilting up F2.5A Hold the carrying handle and tilt the en- Place the gear shift lever in neutral (if gine up fully until the tilt support lever au- equipped) and face the outboard motor tomatically locks.
  • Page 60 Operation ZMU06749 1. Neutral position TIP: To prevent steering movement, turn the If the motor is not facing forward, the tilt sup- steering friction adjuster clockwise. port lever cannot automatically turn to the locked position. If the tilt support lever does not automatically lock, swing the motor a little to the left and right.

  • Page 61: Procedure For Tilting Down

    Procedure for tilting down according operator preference. F2.5A WARNING! If there is too much resis- Slightly tilt the outboard motor up. tance it could be difficult to steer, Slowly tilt the outboard motor down which could result in an accident.

  • Page 62: Shallow Water (F4B, F5A, F6C)

    Operation ZMU06819 ZMU06834 1. Steering friction adjuster 1. Cooling water inlet EMU28063 EMU39584 Shallow water (F4B, F5A, F6C) Procedure for shallow water cruising Move the gear shift lever to the neutral EMU39892 Cruising in shallow water position. EWM02392 WARNING  Operate the boat at the lowest possible speed when cruising in shallow water.

  • Page 63: Cruising In Other Conditions

    Operation EMU35392 Cruising in other conditions Cruising in salt water After operating in salt water, flush the cooling water passages with fresh water to prevent them from becoming clogged. Also rinse the outside of the outboard motor with fresh wa- ter.

  • Page 64: Maintenance

    Consult your Yamaha dealer for further details. ECM02441 EMU42902 NOTICE Transporting/Dismounting the out-...
  • Page 65 Maintenance TIP: Place a towel or something similar under the outboard motor to protect it from damage. F4B, F5A, F6C EWM02301 WARNING Do not hold the top cowling or tiller handle when mounting or dismounting the out- board motor. Otherwise, the outboard mo- tor could fall.
  • Page 66 Maintenance When not using a portable fuel tank, make sure to install the fuel joint cap. Otherwise, injury could result from striking the fuel joint accidentally. [EWM02412] ZMU06836 Loosen the clamp screws. Hold the carrying handle and the hand- grip on the front side of the bottom cowl- ing and lift up the outboard motor using ZMU06753 two people to dismount it from the boat.

  • Page 67: Storing Outboard Motor

    It is advisable to have your outboard motor serviced by an authorized Yamaha dealer pri- or to storage. However, the following proce- dures can be performed by the owner.

  • Page 68: Procedure

    Perform the flushing and fogging at the same time. [ECM00292] Run the engine at a fast idle for a few F2.5A Wash the outboard motor body using minutes in neutral position. WARNING! fresh water. NOTICE: Do not spray wa- Do not touch or remove electrical ter into the air intake.
  • Page 69 Maintenance position and tighten the air vent screw. For draining of the built-in fuel tank, con- sult a Yamaha dealer. When using a portable fuel tank, discon- nect the fuel hose, install the fuel joint cap, and then align the fuel cock with the closed position.
  • Page 70 Maintenance ZMU06862 ZMU06823 1. Water surface 11. If “Fogging Oil” is not available, run the 2. Lowest water level engine at engine idle speed until the fuel 3. Cooling water inlet system empties and the engine stops. Fill the test tank with fresh water to Check that the engine has stopped, and above the level of the anti-cavitation then remove the spark plug.
  • Page 71 For draining of the built-in fuel tank, con- sult a Yamaha dealer. When using a portable fuel tank, discon- nect the fuel hose, install the fuel joint cap, and then align the fuel cock with the closed position.

  • Page 72: Lubrication

    Maintenance TIP: For long-term storage, fogging the engine with oil is recommended. Contact your Yamaha dealer for information about fogging oil and procedures for your engine. EMU44341 Cleaning the outboard motor When cleaning the outboard motor, the top cowling must be installed.

  • Page 73: Replacement Parts

    EMU28512 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 74: 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...

  • Page 75: Maintenance Chart 2

    Connector connec- Inspection or replace- tions/lead connections ment as necessary Fuel tank (optional Inspection and clean- Yamaha portable fuel ing as necessary tank) (F4B, F5A, F6C) Inspection and clean- Fuel tank (built-in tank) ing as necessary EMU34452...

  • Page 76: Greasing

    Maintenance EMU28944 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) F2.5AMH...
  • Page 77 Maintenance F4BMH, F5AMH, F6CMH ZMU06764...

  • Page 78: Cleaning And Adjusting Spark Plug

    Instead, take the out- to explosion or fire. [EWM00562] board motor to a Yamaha dealer. You should periodically remove and inspect the spark Standard spark plug: F2.5AMH BR6HS plug because heat and deposits will cause...

  • Page 79: Checking Fuel Filter

    NOTICE replace them. For cleaning or replacement of Change the engine oil after the first 20 the fuel filters, consult a Yamaha dealer. hours of operation or 3 months, and every 100 hours or at 1-year intervals thereafter. Otherwise the engine will wear quickly.
  • Page 80 Maintenance Then tighten 1/4 to 1/2 turn more. Tighten the drain screw to the correct torque with a torque wrench as soon as possible. Add the correct amount of oil through the filler hole. Install the filler cap. NOTICE: Overfilling the oil could cause leakage or damage.
  • Page 81 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 ZMU06766 as extended trolling.
  • Page 82 Maintenance TIP: TIP: The oil lubrication check window does not in- If the oil does not drain easily, change the tilt dicate the engine oil level. Use the oil lubrica- angle or turn the outboard motor to port and tion check window to make sure that the starboard to drain the oil.

  • Page 83: Checking Connector And Lead

    15. Start the engine and make sure that there are no oil leaks. NOTICE: If there are oil leaks, stop the engine and find the cause. Consult your Yamaha deal- er if the problem cannot be located and corrected. Continued operation with a problem could cause severe engine damage.

  • Page 84: Removing Propeller

    Otherwise, the propeller could come off during oper- ation and be lost. ZMU06777 Apply Yamaha grease D (corrosion resis- 1. Propeller shaft tant grease) into the propeller shaft. EMU30663 Install the thrust washer and propeller Removing propeller onto the propeller shaft.

  • Page 85: Changing Gear Oil

    F2.5A Yamaha dealer check and repair the outboard motor. [ECM00714] TIP: For disposal of used oil, consult your Yamaha dealer. Using a flexible or pressurized filling de- vice, inject the gear oil into the gear oil drain screw hole. Recommended gear oil: YAMALUBE outboard gear oil or Hyp- 1.

  • Page 86: Inspecting And Replacing Anode (External)

    Maintenance F2.5A from the surface of the anode. Consult a Yamaha dealer for replacement of the exter- nal anode. ECM00721 NOTICE Do not paint anodes, as this would render them ineffective. F2.5A F4B, F5A, F6C ZMU07374 1. Anode F4B, F5A, F6C ZMU06780 Put a new gasket on the oil level plug.

  • Page 87: Trouble Recovery

    This section describes the likely causes and Q. Are engine inner parts damaged? remedies for problems, such as those in the A. Have serviced by a Yamaha dealer. fuel, compression, and ignition systems, poor starting, and loss of power. Please note that Engine idles irregularly or stalls.
  • Page 88 A. Check for pinched or kinked fuel line or Q. Is carburetor clogged? other obstructions in fuel system. A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? Q. Is fuel joint connection incorrect? A. Clean or replace filter.

  • Page 89: Temporary Action In Emergency

    Whether damage is found or not, return A. Have propeller repaired or replaced. to the nearest harbor slowly and careful- Q. Is propeller shaft damaged? Have a Yamaha dealer check the out- A. Have serviced by a Yamaha dealer. board motor before operating it again. EMU43681 Starter will not operate Q.
  • Page 90 Trouble Recovery  Make sure no one is standing behind While lifting the fuel tank up, remove the you when pulling the starter rope. It bolt from the starter case. could whip behind you and injure some- Remove the collar. one.
  • Page 91 Trouble Recovery 12. While lifting the fuel tank, insert the knot- ted end of the emergency starter rope into the notch in the flywheel rotor and wind the rope several turns clockwise. TIP: If the rope is too long after winding it around the flywheel, shorten its length at the handle.
  • Page 92 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 93 Trouble Recovery Attach the engine shut-off cord to a se- cure place on your clothing, or your arm or leg. Then, install the clip on the other end of the cord to the engine shut-off switch. ZMU06782 1. Bolts 2. Manual starter/flywheel magnet cover Reinstall 2 bolts to secure the fuel tank.

  • Page 94: Treatment Of Submerged Motor

    EMU33502 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the outboard motor until it has been com- pletely inspected.

  • Page 95: Index

    INDEX Engine shut-off cord (lanyard) ..1, 36 Engine shut-off cord (lanyard) and Alcohol and drugs........2 clip ............24 Anode (external), inspecting and Engine stop button ....... 25 replacing..........81 Anti-fouling paint ........16 Avoid collisions........2 Filling fuel..........39 First-time operation ......
  • Page 96 Tiller handle .......... 22 Overloading ..........2 Tilt lock mechanism (F4B, F5A, F6C) ... 27 Tilt support bar (F4B, F5A, F6C) ... 28 Tilt support lever (F2.5A)....... 28 Tilting up and down ......53 Passenger training........3 Top cowling, installing ......37 Passengers ..........
  • Page 98 Printed in France January 2014–0.3 × 1 CR...

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