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
Read this manual carefully before operating this
LIT-18626-11-28
outboard motor.
6EG-F8199-31-E0

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Summary of Contents for Yamaha F2.5

  • Page 1 F2.5 OWNER’S MANUAL Read this manual carefully before operating this LIT-18626-11-28 outboard motor. 6EG-F8199-31-E0...
  • Page 2 Les gaz d’échappement du moteur de ce produit contiennent des substances chimiques connues dans l’État de Californie pour provoquer le cancer, des anomalies congénitales et des troubles de la reproduction. ZMU07696 Read this manual carefully before operating this outboard motor. Keep this manual onboard in a waterproof bag when boating.

  • Page 3: Important Manual Information

    EWM00782 If you purchased this outboard motor used, WARNING see your Yamaha dealer to have it registered A WARNING indicates a hazardous situa- in your name in Yamaha records. tion which, if not avoided, could result in TIP: death or serious injury.

  • Page 4: Table Of Contents

    Table of contents Specifications and Safety information......1 requirements ........14 Outboard motor safety....1 Specifications ....... 14 Propeller ..........1 Installation requirements ....15 Rotating parts........1 Hot parts ..........1 Boat horsepower rating....15 Electric shock........1 Mounting outboard motor ....15 Engine shut-off cord (lanyard) ....
  • Page 5 Table of contents Operation ......... 33 Procedure......... 51 Lubrication ........52 First-time operation....... 33 Cleaning and anticorrosion Fill engine oil ........33 measures ........52 Breaking in engine......33 Cleaning the outboard motor ... 52 Getting to know your boat ....33 Checking painted surface of Checks before starting engine ..
  • Page 6 Table of contents Treatment of submerged motor ..71 Consumer information....72 YAMAHA FOUR-STROKE OUTBOARD MOTOR THREE-YEAR LIMITED WARRANTY ....... 72 IMPORTANT WARRANTY INFORMATION IF YOU USE YOUR YAMAHA OUTSIDE THE U.S.A. OR CANADA ....74 INDEX ..........75...

  • Page 7: 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 8: 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 mi- swamping.

  • Page 9: Weather

    Safety information There is loss of life or probable loss of life. There is personal injury that requires medical attention beyond first aid. There is property damage to boats or other property over a certain amount. There is complete loss of a boat. Contact local law enforcement personnel if a report is necessary.

  • Page 10: Passenger Training

    Safety information require a rental checklist be completed. Plea- Washington, D.C. 20593-0001 sure Craft Operators Cards can be obtained http://www.uscgboating.org/ following the completion of a competency course, with an on-line option. Details can be United States Power Squadrons found on Transport Canada’s website. 1-888-FOR-USPS (1-888-367-8777) www.tc.gc.ca http://www.usps.org/...

  • Page 11: Basic Boating Rules (Rules Of The Road)

    Safety information “The general prudential rule” EMU33692 Basic boating rules (Rules of This rule is called Rule 2 in the International the road) Rules and says, Just as there are rules that apply when you “In obeying and construing these rules due are driving on streets and highways, there are regard shall be had to all dangers of naviga- waterway rules that apply when you are driv-...

  • Page 12: Other Special Situations

    Safety information Meeting Overtaking If you are meeting another power vessel head If you are passing another vessel, you are the on, and are close enough to run the risk of “Give-Way” vessel. This means that the other collision, neither of you has the right-of-way vessel is expected to maintain its course and Both of you should alter course to avoid an speed.
  • Page 13 Safety information Fishing vessel right-of-way Many bodies of water used by boaters are All vessels that are fishing with nets, lines or entirely within the boundaries of a particular trawls are considered to be “fishing vessels” state. The Uniform State Waterway Marking under the International Rules.
  • Page 14 Safety information ZMU01708...

  • Page 15: 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. ZMU08338 1.
  • Page 16 General information ZMU08191 1. ICES-002 Compliance Label Manufactured date The manufactured date is stamped on the la- bel for the engines that conform to the regu- lations for U.S. Environmental Protection Agency (EPA). The models that manufac- tured exclusively for the Oceanian countries may not have manufactured date on the la- bel.

  • Page 17: 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. EMU33836 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. ZMU08423...
  • Page 18 General information WARNING Gasoline is highly flammable and explosive. Shut off engine before refueling. Tighten tank cap and air vent valve when not in use. 6EE-H1994-40 6EE-G2698-60 AVERTISSEMENT L’essence est extrêmement inflammable et explosive. Areter le moteur avant de taire le plein de carburant. Fermer le capuchon du réservoir et la soupape de mise à...
  • Page 19 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 20: Specifications And Requirements

    Specifications and requirements Spark plug (NGK): EMU38092 Specifications CR6HSB TIP: Spark plug gap: “(AL)” stated in the specification data below 0.6–0.7 mm (0.024–0.028 in) represents the numerical value for the alumi- Steering system: num propeller installed. Tiller handle EMU2821V Starting system: Manual starter Dimension and weight: Starting carburetion system:...

  • Page 21: Installation Requirements

    EMU33565 Boat horsepower rating appropriate. EWM01561 Your Yamaha dealer can help you select the WARNING right propeller for your boating needs. Select Overpowering a boat can cause severe in- a propeller that will allow the engine to reach stability.

  • Page 22: Engine Oil Requirements

    Engine oil quantity: pinging occurs, use a different brand of gas- 0.35 L (0.37 US qt, 0.31 Imp.qt) oline or premium unleaded fuel. Yamaha rec- ommends that you use alcohol-free gasoline If oil grades listed under Recommended en- (see Gasoline with Ethanol) whenever possi- gine oil grade 1 are not available, select an al- ble.
  • Page 23 However, if gasoline with Ethanol is the the gasoline in a layer at the bottom of the only fuel available in your area, your Yamaha fuel tank. This ethanol and water mixture is outboard motor is calibrated to run properly...

  • Page 24: Gasoline Additives

    Gasoline Additives use on aluminum may be applied to the out- Gasoline blends change to meet automobile board motor. The original Yamaha paint sur- emission regulations and economic condi- face may be scuffed lightly before applying tions. Additives, added by gasoline distribu-...

  • Page 25: Outboard Motor Disposal Requirements

    Air Resources Board (CARB) star label.  An extra engine shut-off cord (lanyard) with See below for a description of your particular clip. label.  Spare parts, such as an extra set of spark plugs. Consult your Yamaha dealer for details.
  • Page 26 Specifications and requirements ZMU01703 ZMU08453 EMU40351 1. Star labels location Three Stars—Ultra Low Emission The three-star label identifies engines that EMU40331 One Star—Low Emission meet the Air Resources Board’s Personal The one-star label identifies engines that Watercraft and Outboard marine engine 2008 meet the Air Resources Board’s Personal exhaust emission standards or the Sterndrive Watercraft and Outboard marine engine 2001...
  • Page 27 Specifications and requirements ZMU05663...

  • Page 28: Components

    Components EMU46721 Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all models (order from dealer). ZMU08343 1. Top cowling 10.Carrying handle 2. Tiller handle 11.Steering friction adjuster 3. Clamp bracket 12.Idle hole 4.

  • Page 29: Fuel Tank (Built-In Fuel Tank)

    Components ZMU08422 EMU44005 1. Air vent valve Fuel tank (built-in fuel tank) 2. Fuel tank cap This outboard motor is equipped with a built- 3. Gear shift lever in fuel tank and its parts are as follows. 4. Choke knob 5.

  • Page 30: Fuel Cock

    Components Fuel tank cap This cap seals the fuel tank. When the cap is removed, the tank can be filled with fuel. To remove the cap, turn it counterclockwise. Air vent valve This valve is on the fuel tank cap. To open the air vent valve, align the pointer on the air vent valve with the “ON”...

  • Page 31: Tiller Handle

    Components 2. Neutral position EMU25943 Throttle grip The throttle grip is on the tiller handle. Turn the grip counterclockwise to increase speed and clockwise to decrease speed. ZMU08345 1. Open position EMU25914 Tiller handle To change direction, move the tiller handle to the left or right as necessary.

  • Page 32: Throttle Friction Adjuster

    Components The engine start mark “ ” on the throttle indi- cator shows the throttle position for starting the engine. ZMU08350 1. Throttle friction adjuster EMU25996 ZMU08349 Engine shut-off cord (lanyard) and clip 1. Start mark “ ” The clip must be attached to the engine shut- 2.

  • Page 33: Engine Stop Button

    Components ZMU08351 ZMU08353 1. Clip 1. Choke knob 2. Engine shut-off cord (lanyard) EMU26075 Manual starter handle 3. Engine shut-off switch The manual starter handle is used to crank EMU26004 Engine stop button and start the engine. The engine stop button stops the engine when the button is pushed.

  • Page 34: Trim Rod (Tilt Pin)

    Components ZMU08357 ZMU08355 1. Tilt support lever 1. Steering friction adjuster ECM00661 To increase resistance, turn the steering fric- NOTICE tion adjuster clockwise. Do not use the tilt support lever or knob To decrease resistance, turn the steering fric- when trailering the boat. The outboard tion adjuster counterclockwise.

  • Page 35: Carrying Handle

    Components ZMU08359 1. Cowling lock lever EMU39373 Carrying handle The carrying handle is used to carry the out- board motor. For information on carrying and transporting the outboard motor, see page ZMU08360 1. Carrying handle...

  • Page 36: Installation

    If you are not able to mount the outboard motor properly, consult a Yamaha dealer. ZMU08362 Hold the carrying handle and the hand- EMU42942...
  • Page 37 Installation ZMU08365 1. Steering friction adjuster EMU39742 Mounting height To run your boat at optimum efficiency, the water resistance (drag) of the boat and out- ZMU08364 board motor must be made as little as possi- Mount the outboard motor on the center ble.

  • Page 38: Clamping The Outboard Motor

    Test runs at different heights can help de- termine the optimum mounting height. Consult your Yamaha dealer or boat man- ufacturer for further information on deter- mining the proper mounting height.  For instructions on setting the trim angle of the outboard motor, see page 43.

  • 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

    For details, consult a good rule is to use 1/3 of your fuel to get to Yamaha dealer. the destination, 1/3 to return, and to keep 1/3  If the top cowling is removed while the en- as an emergency reserve.

  • Page 41: Controls

    Operation EMU36453 2. Engine shut-off cord (lanyard) Check for fuel leaks  Check for fuel leaks or gasoline fumes in EMU39385 Engine oil the boat. Place the outboard motor in an upright  Check for fuel leakage from the fuel sys- position (not tilted).

  • Page 42: Engine

    Check the rubber seal for damage. If the rubber seal is damaged, have it replaced ZMU08371 1. Cowling lock lever by a Yamaha dealer. Check the fitting of the top cowling with both hands. NOTICE: If the top cowling is not installed correctly, water can...

  • Page 43: Filling Fuel

    Operation  If you use a portable container to store and dispense fuel, only use a locally approved GASOLINE container.  To prevent electrostatic sparks, discharge any built-up static electricity from your body before refueling. Remove the fuel tank cap. ZMU08372 EMU46630 Filling fuel...

  • Page 44: Operating Engine

    Operation you use a portable container to store and Align the fuel cock with the open posi- dispense fuel, only use a locally ap- tion. proved GASOLINE container. EMU44112 Operating engine EWM02702 WARNING  Before starting the engine, make sure that the boat is tightly moored and that you can steer clear of any obstructions.
  • Page 45 Operation boat could slow rapidly. This could cau- se people and objects in the boat to be thrown forward. Move the gear shift lever to the neutral position. WARNING! Always start the engine in neutral to avoid accidentally moving the boat. [EWM00112] ZMU08349 1.

  • Page 46: Checks After Starting Engine

    ZMU08382 the lower case or the cooling water pilot After the engine starts, slowly return the hole is blocked. Consult your Yamaha manual starter handle to its original posi- dealer if the problem cannot be located tion before releasing it.

  • Page 47: Checks After Engine Warm Up

    Operation up the engine by operating at one fifth throttle ECM01611 NOTICE or less. After the engine has warmed up, push the choke knob in fully. NOTICE: Failure to Warm up the engine before shifting into gear. Until the engine is warm, the idle do so will shorten engine life.

  • Page 48: Stopping Boat

    Operation Move the gear shift lever firmly and crisp- ly toward the stern. ZMU08380 1. Neutral position ZMU08386 To shift from in gear to neutral Close the throttle so that the engine slows to idle speed. ZMU08443 1. Neutral position EMU46290 Stopping boat The boat is not equipped with a separate...

  • Page 49: Trimming Outboard Motor

    Operation EMU27865 Trimming outboard motor EWM00741 WARNING Excessive trim for the operating condi- tions (either trim up or trim down) can cau- se boat instability and can make steering the boat more difficult. This increases the possibility of an accident. If the boat be- gins to feel unstable or is hard to steer, ZMU08352 slow down and/or readjust the trim angle.

  • Page 50: Adjusting Trim Angle

    Operation EMU42832 Adjusting trim angle EWM04300 WARNING  Stop the engine before adjusting the trim angle.  Use care to avoid being pinched when moving the trim rod.  Use caution when trying a trim position for the first time. Increase speed gradu- ZMU08391 ally and watch for any signs of instability 1.

  • Page 51: Tilting Up And Down

    Operation Bow Up TIP: Too much trim-out puts the bow of the boat Depending on the type of boat, the outboard too high in the water. Performance and econ- motor trim angle may have little effect on the omy are decreased because the hull of the trim of the boat when operating.

  • Page 52: Procedure For Tilting Up

    Operation Place the gear shift lever in neutral and ECM00232 NOTICE face the outboard motor forward.  Before tilting the outboard motor, follow the procedure under “Stopping engine” in this chapter. Never tilt the outboard motor while the engine is running. Se- vere damage from overheating can re- sult.

  • Page 53: Procedure For Tilting Down

    Operation ZMU08424 ZMU08418 1. Closed position 1. Tilt support lever Hold the carrying handle and tilt the en- Loosen the steering friction adjuster by gine up fully until the tilt support lever au- turning it counterclockwise, and adjust tomatically locks. the steering friction according to opera- tor preference.

  • Page 54: Maintenance

    Maintenance tilted position using a motor support device EMU43017 Transporting and storing out- such as a transom saver bar. Consult your board motor Yamaha dealer for further details. EWM02621 EMU46641 Dismounting and transporting the WARNING outboard motor  USE CARE when transporting fuel tank, EWM02301 whether in a boat or car.
  • Page 55 Maintenance To prevent steering movement, turn the steering friction adjuster clockwise. ZMU08363 1. Carrying handle 2. Handgrip ZMU08361 1. Steering friction adjuster Turn the tiller handle 180° so that it is pointing rearward. ZMU08362 Loosen the clamp screws. ZMU08364 To transport the outboard motor When transporting or storing the outboard motor while removed from a boat, it is recom- mended that you use an outboard motor...

  • Page 56: Storing Outboard Motor

    ZMU08580 ZMU08399 ZMU08565 EMU43663 Storing outboard motor When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), several important procedures must be performed to prevent excessive damage. ZMU08400...

  • Page 57: Procedure

    Maintenance It is advisable to have your outboard motor Fill the fuel tank with fresh fuel and add serviced by an authorized Yamaha dealer pri- one ounce of “Yamalube Fuel Stabilizer or to storage. However, the following proce- & Conditioner Plus” to each gallon of fu- dures can be performed by the owner.

  • Page 58: Lubrication

    63. Check the gear oil for the pres- ence of water that indicates a leaky seal. Seal replacement should be performed by an authorized Yamaha dealer prior to use. Lubricate all grease fittings. For further details, see page 57.

  • Page 59: Checking Painted Surface Of Outboard Motor

    Maintenance Drain the cooling water completely out of A service manual is available for purchase the outboard motor. Clean the body through your Yamaha dealer for owners who thoroughly. have the mechanical skills, tools, and other EMU28463 equipment necessary to perform mainte- Checking painted surface of outboard nance not covered by this owner’s manual.

  • Page 60: 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 61 Maintenance Initial Every 20 hours Item Actions Page 100 hours 300 hours 500 hours (1 year) (3 years) (5 years) months) Fuel/engine oil Inspection — leakage Gear oil Replacement Greasing points Greasing Inspection or re- Impeller/water placement as nec- — pump housing essary Impeller/water...

  • Page 62: Maintenance Chart 2

    Maintenance Initial Every 20 hours Item Actions Page 100 hours 300 hours 500 hours (1 year) (3 years) (5 years) months) Wire harness con- Inspection or re- nections/wire cou- placement as nec- — pler connections essary Inspection and Fuel tank (built-in cleaning as neces- —...

  • Page 63: Greasing

    Maintenance EMU41302 Greasing Yamalube Marine Grease ZMU08403...

  • Page 64: Inspecting The Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the out- board motor to a Yamaha dealer. You should periodically remove and check the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.

  • Page 65: Checking Fuel Filter

    For cleaning or replacement of the fuel filters Yamaha dealer. at the intervals specified in the periodic main- Put the outboard motor in an upright po- tenance chart, consult a Yamaha dealer. sition (not tilted). NOTICE: If the out- EMU40141 Inspecting idle speed...
  • Page 66 Maintenance ZMU08448 ZMU08449 1. Oil changer Start the engine. Warm it up and keep the idle speed for 5-10 minutes. TIP: Stop the engine and leave it for 5-10 mi- When using an oil changer, skip steps 7 and nutes. Remove the top cowling.

  • Page 67: Checking Electrical Connectors And Electrical Leads

    [ECM02183] the cause. Consult your Yamaha deal- 10. Install the oil filler cap and tighten it com- er if the problem cannot be located pletely.

  • Page 68: Checking Propeller

    Maintenance EMU39303 Checking propeller EWM02281 WARNING You could be seriously injured if the en- gine accidentally starts when you are near the propeller. Before inspecting, remov- ing, or installing the propeller, place the gear shift lever in neutral, and remove the clip from the engine shut-off switch.

  • Page 69: Installing Propeller

    Otherwise, the propeller could come off during oper- ation and be lost. Apply Yamalube Marine Grease or Yamaha grease D (corrosion resistant grease) to the propeller shaft. Install the thrust washer and propeller onto the propeller shaft. NOTICE: Make...

  • Page 70: Inspecting And Replacing Anode (External)

    [ECM00714] Tightening torque: TIP: 7 Nm (0.71 kgf-m, 5.2 ft-lb) For disposal of used oil, consult your Yamaha dealer. EMU39333 Inspecting and replacing anode (ex- Using a flexible or pressurized filling de- ternal) vice, inject the gear oil into the gear oil Yamaha outboard motors are protected from drain screw hole.
  • Page 71 Maintenance ZMU08405 1. Anode...

  • Page 72: Trouble Recovery

    Trouble Recovery A. Have serviced by a Yamaha dealer. EMU46690 Troubleshooting This section describes the likely causes and Engine idles irregularly or stalls. remedies for problems, such as those in the Q. Is fuel system obstructed? fuel, compression, and ignition systems, poor A.
  • Page 73 Trouble Recovery A. Have serviced by a Yamaha dealer. A. Check for pinched or kinked fuel line or other obstructions in fuel system. Q. Is fuel joint connection incorrect? A. Connect correctly. Q. Is fuel filter clogged? A. Clean or replace filter.

  • Page 74: Temporary Action In Emergency

    Trouble Recovery A. Have serviced by a Yamaha dealer. EMU43682 Starter will not operate If the starter mechanism does not operate Q. Are weeds or other foreign material tan- (the engine cannot be cranked with the start- gled on propeller? er), the engine can be started with an emer- A.

  • Page 75: Emergency Engine Starting

    Trouble Recovery  Do not touch the ignition coil, spark plug wire, spark plug cap, or other electrical components when starting or operating the motor. You could get an electrical shock. EMU42923 Emergency engine starting Before performing the following procedure, make sure to read the emergency starting la- ZMU08430 bel on the inside of the top cowling.
  • Page 76 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. ZMU08433 1. Bolt 2. Bracket Place the fuel tank in its original position, and then install the bolts.

  • Page 77: 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 78: Consumer Information

    Owner’s Manual. The owner of the outboard motor shall give notice to an authorized Yamaha Outboard Motor Dealer of any and all apparent defects within ten (10) days of discovery and make the motor available at that time for inspection and repairs at the dealer’s place of business.
  • Page 79 TRANSFER OF WARRANTY Transfer of the warranty from the original purchaser to any subsequent purchaser is possible by having the motor inspected by an authorized Yamaha Outboard Motor Dealer and requesting the dealer to submit a change of registration to Yamaha within ten (10) days of the transfer.

  • Page 80: Important Warranty Information If You Use Your Yamaha Outside The U.s.a. Or Canada

    He will be able to contact Yamaha on your behalf to see if any refund can be provided.

  • Page 81: Index

    INDEX Accident reporting ........3 Electric shock ......... 1 Alcohol and drugs........2 Electrical connectors and leads, Anode (external), inspecting and checking ..........61 replacing..........64 Emergency engine starting ....69 Anti-fouling paint ........18 Emergency equipment......19 Approval label of emission control Emergency, temporary action in...
  • Page 82 INDEX Impact damage........68 Installation requirements ...... 15 Shifting..........41 Shifting (checks after engine warm up)............41 Spark plug, inspecting......58 Laws and regulations......4 Specifications ........14 Lubrication..........52 Star labels ..........19 Starter will not operate ......68 Starting engine........
  • Page 83 — right out of the box. Yamalube — Take care of your Yamaha with legendary Yamalube oils, lubricants, and care products. They’re formulated and approved by the toughest judges we know: the Yamaha engineering teams that know your Yamaha from the inside out.
  • Page 84 Printed in Thailand February 2016...

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