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F225F
FL225F
F250D
FL250D
F300B
FL300B
F250D1
FL250D1
F300B1
FL300B1
OWNER'S MANUAL
Read this manual carefully before operating this
outboard motor.
6CE-28199-74-E0

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   Summary of Contents for Yamaha F225F

  • Page 1

    F225F FL225F F250D FL250D F300B FL300B F250D1 FL250D1 F300B1 FL300B1 OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6CE-28199-74-E0...

  • Page 2

    EMU25053 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

    Any damage tain maximum enjoyment from your new resulting from neglect of these instructions is Yamaha. If you have any question about the not covered by warranty. operation or maintenance of your outboard Some countries have laws or regulations re- motor, please consult a Yamaha dealer.

  • Page 4

    Important manual information EMU25122 F225F, FL225F, F250D, FL250D, F300B, FL300B, F250D1, FL250D1, F300B1, FL300B1 OWNER’S MANUAL ©2014 by Yamaha Motor Co., Ltd. 1st Edition, November 2014 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd.

  • Page 5: Table Of Contents

    Table of contents Safety information......1 Yamaha Security System ....12 Digital electronic control Outboard motor safety ..... 1 requirements....... 12 Propeller ..........1 Rotating parts ........1 Battery requirements...... 13 Hot parts..........1 Battery specifications ......13 Electric shock ........1 Mounting battery........

  • Page 6: Table Of Contents

    Instruments and indicators .... 33 Checks before starting engine ..51 6Y9 Multifunction Color Gauge ..33 Fuel level ........... 51 YAMAHA SECURITY SYSTEM Removing top cowling ....... 51 indicator ........33 Fuel system ........51 Engine warm-up indicator....33 Controls ..........

  • Page 7: Table Of Contents

    Table of contents Tilting up and down ......64 Running single engine (twin engines)......... 94 Procedure for tilting up Replacing fuse........95 (power trim and tilt models).... 64 Power trim and tilt unit will not Procedure for tilting down operate ........... 96 (power trim and tilt models)....

  • Page 8: Safety Information, Outboard Motor Safety, Power Trim And Tilt, Rotating Parts, Hot Parts, Electric Shock

    Safety information EMU33623 EMU33661 Outboard motor safety Power trim and tilt Body parts can be crushed between the mo- Observe these precautions at all times. tor and the clamp bracket when the motor is EMU36502 Propeller trimmed or tilted. Keep body parts out of this People can be injured or killed if they come area at all times.

  • Page 9: Carbon Monoxide, Boating Safety, Alcohol And Drugs

    Safety information cording to the procedure on page 56 to occupant. Yamaha recommends that you reduce the risk of fire and explosion. must wear a PFD whenever boating. At a minimum, children non-swimmers EMU33821 Gasoline exposure and spills should always wear PFDs, and everyone Take care not to spill gasoline.

  • Page 10: Passenger Training, Avoid Collisions, Boating Safety Publications, Laws And Regulations

    Safety information dling and lead to an accident, capsizing or boating in hazardous weather. swamping. EMU33881 Passenger training EMU33773 Avoid collisions Make sure at least one other passenger is Scan constantly for people, objects, and oth- trained to operate the boat in the event of an er boats.

  • Page 11: General Information, Identification Numbers Record

    Yamaha dealer or for control to the outboard motor. reference in case your outboard motor is sto- TIP: len.

  • Page 12: Key Number

    General information relating to machinery. Each conformed outboard motor accompa- nied with EC DoC.EC DoC contains the fol- lowing information; Name of Engine Manufacture  Model name  Product code of model (Approved model  code) Code of conformed directives ...

  • Page 13: Compliance Mark And Manufactured Date Label

    General information EMU46132 Compliance mark and manufactured date label Engines affixed with this label conform to the regulations for each country. This label is affixed to the clamp bracket or swivel bracket. 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.

  • Page 14: Read Manuals And Labels, Warning 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. ZMU07261...

  • Page 15

    General information ZMU06191 stops if you accidentally leave the EMU34652 Contents of labels helm, which could prevent a runaway The above warning labels mean as follows. boat. EMU33851 EWM01682 Other labels WARNING Keep hands, hair, and clothing away  from rotating parts while the engine is running.

  • Page 16

    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 17: Specifications And Requirements, Specifications

    Specifications and requirements F250DET 268 kg (591 lb) EMU40501 Specifications F250DET1 268 kg (591 lb) TIP: F300BET 268 kg (591 lb) “(SUS)” indicates that the specification is for F300BET1 268 kg (591 lb) FL250DET 268 kg (591 lb) the outboard motor when it is equipped with FL250DET1 268 kg (591 lb) a stainless steel propeller.

  • Page 18

    Specifications and requirements Starting carburetion system: FL225FET Regular unleaded gaso- Fuel injection line Valve clearance IN (cold engine): FL250DET Regular unleaded gaso- 0.17–0.24 mm (0.0067–0.0094 in) line Valve clearance EX (cold engine): FL250DET1 Regular unleaded gaso- 0.31–0.38 mm (0.0122–0.0150 in) line Battery rating (CCA/EN): FL300BET Premium unleaded gaso-...

  • Page 19: Installation Requirements, Boat Horsepower Rating, Mounting Outboard Motor, Digital Electronic Control

    Propeller nut: ECM02461 54 Nm (5.51 kgf-m, 39.8 ft-lb) NOTICE Engine oil drain bolt: The Yamaha Security System is sold in 27 Nm (2.75 kgf-m, 19.9 ft-lb) conformity with the relevant laws and Engine oil filter: regulations regarding radio wave trans- 18 Nm (1.84 kgf-m, 13.3 ft-lb)

  • Page 20: Mounting Battery, Multiple Batteries, Propeller Selection, Battery Requirements, Battery Specifications

    If the ECM (Electronic control module) of and every application.  the used outboard motor is replaced Your Yamaha dealer can help you select the If the ECM (Electronic control module) of right propeller for your boating needs. Select ...

  • Page 21: Engine Oil Requirements, Counter Rotation Models

    Specifications and requirements able for the “Shift Dampener System (SDS)”. peller. WARNING! Never use a standard propeller with a counter rotation motor, For further information, consult your Yamaha dealer. or a counter rotation propeller with a standard motor. Otherwise the boat could To check the propeller, see page 84.

  • Page 22: Fuel Requirements

    Specifications and requirements Recommended engine oil grade 1 Recommended fuel: F225FET Regular unleaded gasoline F250DET Regular unleaded gasoline 122˚F F250DET1 Regular unleaded gasoline 50˚C F300BET Premium unleaded gasoline 10W–30 F300BET1 Premium unleaded gaso- line 10W–40 FL225FET Regular unleaded gasoline FL250DET Regular unleaded gasoline 5W–30 FL250DET1 Regular unleaded gaso- line...

  • Page 23: Emergency Equipment, Emission Control Information

    10% ethanol motor. Yamaha recommends consulting the can cause fuel system damage or cause en- dealer about discarding the outboard motor. gine starting and running problems. Yamaha EMU36353 Emergency equipment does not recommend gasohol containing Keep the following items onboard in case methanol because it can cause fuel system there is trouble with the outboard motor.

  • Page 24: Star Labels

    IN NEUTRAL FUEL : GASOLINE SPARK PLUG : SPARK PLUG GAP (mm) : VALVE LASH (mm) IN : EX : YAMAHA MOTOR CO.,LTD. ZMU01702 ZMU06894 EMU40341 Two Stars—Very Low Emission EMU25275 Star labels The two-star label identifies engines that Your outboard motor is labeled with a Cali- meet the Air Resources Board’s Personal...

  • Page 25

    Specifications and requirements ZMU01704 EMU33862 Four Stars—Super Ultra Low Emission The four-star label identifies engines that meet the Air Resources Board’s Sterndrive and Inboard marine engine 2009 exhaust emission standards. Personal Watercraft and Outboard marine engines may also comply with these standards. Engines meet- ing these standards have 90% lower emis- sions than One Star-Low-Emission engines.

  • Page 26: Components Diagram

    Components EMU2579Z Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els (order from dealer). ZMU07139 1. Top cowling 2. Idle hole 3. Anti-cavitation plate 4. Trim tab (anode) 5.

  • Page 27

    Components ZMU07140 1. Ignition coil 2. Oil dipstick 3. Cowling lock lever 4. Power trim and tilt switch 5. Flushing device 6. Oil level plug 7. Gear oil drain screw 8. Cooling water inlet 9. Anode 10. Power trim and tilt unit 11.

  • Page 28

    Components ZMU07202 1. Digital electronic control (single type)* 2. Switch panel (for use with single type)* 3. Digital electronic control (twin type)* 4. Switch panel (for use with twin type)* 5. Start/Stop switch panel (for use with twin type)* 6. All Start/Stop switch panel (for use with twin type)* 7.

  • Page 29: Remote Control Transmitter

    7. 6Y9 Multifunction Color Gauge* EMU38593 Remote control transmitter ZMU06455 The lock and unlock modes of the Yamaha Security System are selected using the re- Store the remote control transmitter carefully so it will not be lost. mote control transmitter. While the engine is...

  • Page 30: Receiver

    Yamaha dealer. Control Module) to prevent the engine from Keep the remote control transmitter  starting. Consult your Yamaha dealer for in- away from high temperatures and do stallation of the receiver. not place it in direct sunlight.

  • Page 31: Digital Electronic Control Box

    Components Yamaha Engine Security Number Main can be System of beeps switch started mode Lock 1 beep “ ” “ ”/ Unlock 2 beeps “ ” Yamaha Security Digital electronic control-active System indicator ZMU05851 mode 1. Control lever Lock 2. Digital electronic control-active indicator...

  • Page 32: Control Lever, Free Throttle Switch

    Digital electronic control-alert indicator The digital electronic control-alert indicator lights when trouble occurs in the connection between the digital electronic control and outboard motor. Consult your Yamaha deal- er for details. ZMU05878 1. Neutral “ ” 2. Forward “ ”...

  • Page 33: Throttle Friction Adjuster

    Components 22.5 ZMU05880 ZMU05883 1. Fully open 2. Fully closed 22.5 3. Free accelerator The free throttle switch can only be used  when the control lever is in the neutral po- sition. During operation the digital electronic con-  trol-active indicator changes from continu- ously lit to blinking.

  • Page 34: Engine Shut-off Cord (lanyard) And Clip

    Components the engine. This will prevent the boat from EWM01771 WARNING running away under power. WARNING! At- If the friction is too small, the control le- tach the engine shut-off cord to a secure  ver could move freely and cause an ac- place on your clothing, or your arm or leg cident.

  • Page 35: Main Switch

    Components pressing the Start/Stop button. For twin type, EMU41552 Main switch it is possible to start or turn off individual en- The main switch controls the ignition system; gine. The indicator for the corresponding en- its operation is described below. gine will come on.

  • Page 36: Cowling

    Components outboard motor up, and then tilts it up. Press- ing the switch “ ” (down) tilts the outboard motor down and trims it down. When the switch is released, the outboard motor will stop in its current position. For instructions on using the power trim and tilt switch, see pages 62 and 64.

  • Page 37: Tilt Model

    Components EMU26245 Trim tab with anode EWM00841 WARNING An improperly adjusted trim tab could cause difficult steering. Always test run after the trim tab has been installed or re- placed to be sure steering is correct. Be sure you have tightened the bolt after ad- justing the trim tab.

  • Page 38: Cowling Lock Lever, Fuel Filter

    Components using a garden hose and tap water. For in- ECM00661 NOTICE structions on using the flushing device, see Do not use the tilt support lever or knob page 69. when trailering the boat. The outboard motor could shake loose from the tilt sup- port and fall.

  • Page 39

    Components ZMU07518 1. Fuel filter...

  • Page 40

    EMU41642 play, see the 6Y9 Multifunction Color Gauge YAMAHA SECURITY SYSTEM owner’s manual. indicator This indicator appears when the YAMAHA SECURITY SYSTEM is in lock mode. Make sure it is off before starting the engine. CANCEL MENU ZMU07233 1.

  • Page 41: Instruments And Indicators

    Serious engine damage will occur. Do not continue to operate the engine if  a alert device has activated. Consult your Yamaha dealer if the problem can- ZMU07237 not be located and corrected. EMU41681 EMU41691 Overheat alert...

  • Page 42

    ZMU07251 ZMU07242 ZMU07252 Get back to the port soon if the low battery voltage-alert device has activated. For charging the battery, consult your Yamaha dealer. EMU41711 Engine trouble alert ZMU07250 The pop-up window will appear if the engine Stop the engine immediately and see page...

  • Page 43: Y8 Multifunction Tachometers, Y8 Multifunction Meters

    Yamaha dealer. The tachometer unit is available in round or square types. Check your tachometer unit type. ZMU07254 Return to port and consult a Yamaha dealer immediately. EMU31654 6Y8 Multifunction meters Multifunction meters have 6 kinds of meter ZMU05415 units;...

  • Page 44: Information

    10. YAMAHA SECURITY SYSTEM indicator EMU38623 Yamaha Security System information Turn the main switch to the “ ” (on) posi- tion, the currently selected Yamaha Security System mode (Lock / Unlock) will show on the display. MODE Unlock mode ZMU05417 1.

  • Page 45: Overheat Alert

    Do not continue to run the engine if the MODE low oil pressure alert device has activat- ZMU06460 ed. Serious engine damage will occur. 1. YAMAHA SECURITY SYSTEM indicator EMU36222 Overheat alert EMU36131 If the engine temperature rises too high while...

  • Page 46: Water Separator Alert

    (fuel filter) while cruising. In such an event, stop the engine immediately and see page 94 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha ZMU05425...

  • Page 47: Low Battery Voltage-alert

    6Y8 Multifunction speed & fuel NOTICE meters In such an event, the engine will not oper- ate properly. Consult a Yamaha dealer im- The speed & fuel meter unit shows the boat mediately. speed and has the functions of fuel meter, to-...

  • Page 48

    For the optional sensors, consult your Yamaha dealer. After the main switch is first turned on, all the MODE displays come on as a test. After a few sec-...

  • Page 49: Y8 Multifunction Fuel Management Meters, Optional Meters

    For details, consult your Yamaha dealer. fuel display. The chosen display is selected by using the “ ” (set) and “...

  • Page 50

    Instruments and indicators Analog tachometer ZMU07245 Trim meter ZMU04581...

  • Page 51: Engine Control System, Alert System, Digital Electronic Control Alert

    The engine speed will automatically de- alert device has activated. Consult your  crease to about 2000 r/min. Yamaha dealer if the problem cannot be The overheat-alert indicator of the 6Y8 located and corrected.  Multifunction Tachometer will light or blink.

  • Page 52: Low Oil Pressure Alert

    Engine control system The buzzer will sound. switch of the engine overheating. If the alert  system has activated, stop the engine and tilt the outboard motor up to check the cooling water inlet for clogging. If the alert system has still activated, tilt the overheated out- board motor up and return to the port.

  • Page 53: Water Separator Alert

    Check the oil level and add oil as needed. If the oil level is correct and the alert device does not switch off, consult your Yamaha dealer. Twin engine drive users: If the low oil pressure alert system of one en- gine activates, both engines will slow down and the buzzer will sound.

  • Page 54

    If the alert system has activated, stop the en- gine immediately and see page 94 of this manual to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha dealer immediately. ECM02471 NOTICE Although the buzzer will stop when the...

  • Page 55: Mounting The Outboard Motor

    Consult your gine overheating. If the engine is mounted Yamaha dealer or boat manufacturer for fur- too low, water resistance (drag) will increase, ther information on determining the proper thereby reducing engine efficiency and per- mounting location.

  • Page 56

    Test runs at differ- ent heights can help determine the optimum mounting height. Consult your Yamaha deal- er or boat manufacturer for further informa- tion on determining the proper mounting height.

  • Page 57: Filling Engine Oil, Getting To Know Your Boat, Breaking In Engine

    NOTICE: Failure to follow the break-in The outboard motor is shipped from the fac- procedure could result in reduced engine tory without engine oil. If your Yamaha deal- life or even severe engine damage. [ECM00802] er did not fill the engine with engine oil, you...

  • Page 58: Checks Before Starting Engine, Fuel System, Removing Top Cowling

    Operation EMU36414 2. Bottom cowling Checks before starting engine 3. Top cowling EWM01922 WARNING If any item in “Checks before starting en- gine” is not working properly, have it in- spected and repaired before operating the outboard motor. Otherwise, an acci- dent could occur.

  • Page 59: Engine Oil

    Check the engine shut-off cord and clip for is between the upper and lower marks. damage, such as cuts, breaks, and wear. Consult your Yamaha dealer if the oil level is not at the proper level or if it ap- pears milky or dirty.

  • Page 60

    Check the rubber seal for damage. If the garden hose connector to the fitting on rubber seal is damaged, have it replaced the bottom cowling and tighten it secure- by a Yamaha dealer. ly. Otherwise, cooling water will leak out during operation, causing the engine to overheat.

  • Page 61

    Operation Check that the rubber seal is seated all the way around the bottom cowling. Check that all of the cowling lock levers are pulled outward. Align the 3 protrusions on the top cowl- ing with the corresponding holders on the bottom cowling, and then place the top cowling on the bottom cowling.

  • Page 62: Checking Power Trim And Tilt System

    Operation EMU35245 Checking power trim and tilt system EWM01931 WARNING Never get under the lower unit while it  is tilted, even when the tilt support lever is locked. Severe injury could occur if the outboard motor accidentally falls. Body parts can be crushed between the ...

  • Page 63: Operating Engine, Filling Fuel, Sending Fuel, Starting Engine

    Operation start the engine. ly with dry rags. Dispose of rags properly Refer to the battery manufacturer’s instruc- according to local laws or regulations. tions for checks for your particular battery. EMU40252 Operating engine EMU30027 Filling fuel EWM02601 WARNING EWM01831 WARNING This product emits exhaust gases which Gasoline and its vapors are highly flam-...

  • Page 64

    If equipped with the Yamaha Security System: If the lock mode of the Yamaha Security System is selected, use the re- mote control transmitter to select the un- lock mode. Short beep will sound twice when unlocking the Yamaha Security System.

  • Page 65

    Operation make sure that the digital electronic con- Start/Stop button, press the button to trol-active indicator lights. The engine start the engine. The indicator for the can not be started when the digital elec- starting engine will come on. tronic control-alert indicator lights. ZMU07148 ZMU07217 When starting the engine using the...

  • Page 66: Checks After Starting Engine, Cooling Water, Checks After Engine Warm Up, Stop Switches

    Check that the engine stops when the clip  hole is blocked. Consult your Yamaha is pulled from the engine shut-off switch. dealer if the problem cannot be located Check that the engine cannot be started ...

  • Page 67: Stopping Boat, Adjusting Trolling Speed

    Operation result, for quick gear shifting there could be a time lag when the gear is shifted until the en- gine speed has decreased sufficiently. To shift out of neutral Pull the neutral interlock trigger up (if equipped). Move the control lever firmly and crisply forward (for forward gear) or backward (for reverse gear) 22.5...

  • Page 68: Stopping Engine

    Operation r/min. The display will show the engine TIP: speed when the engine speed is increased Trolling is affected by currents and other  from the fully closed position during trolling operating conditions and may differ from speed setting mode. When the throttle is re- the actual engine speed.

  • Page 69: Trimming Outboard Motor

    ” (off). If equipped with the Yamaha Security System: When you leave your boat, set the Yamaha Security System to the lock mode by pressing the lock button of the remote control transmitter. Short beep will sound once when locking the securi- ty system.

  • Page 70: Adjusting Boat Trim

    Operation a complete stop with the engine off. Do bow up, the boat may have a greater tenden- not adjust the trim angle with this cy to steer to one side or the other. Compen- switch while the boat is moving. sate for this as you steer.

  • Page 71: Tilting Up And Down

    Operation the bow is greatly increased, heightening the To prevent the cooling water passages  from becoming frozen when the ambi- danger of “bow steering” and making opera- tion difficult and dangerous. ent temperature is 5C (41F) or below, tilt the outboard motor up after it has been stopped 30 seconds or more.

  • Page 72

    Operation ZMU05838 ZMU07153 ZMU07177 Once the outboard motor is supported Set the tilt support lever to support the with the tilt support lever, press the pow- engine. WARNING! After tilting the er trim and tilt switch “ ” (down) to re- outboard motor, be sure to support it tract the trim rods.

  • Page 73: Shallow Water, Cruising In Shallow Water

    Operation ZMU07178 ZMU07179 Push the power trim and tilt switch “ ” EMU28063 Shallow water (down) to lower the outboard motor to the desired position. EMU40702 Cruising in shallow water The outboard motor can be tilted up partially to allow operation in shallow water. ECM02361 NOTICE Do not tilt the outboard motor up so that...

  • Page 74: Operating In Other Conditions

    Operation mal running position, press the power trim and tilt switch and slowly tilt the out- board motor down. EMU41371 Operating in other conditions Operating in salt water After operating in saltwater, brackish water, or water high in other minerals, flush the cooling system with fresh water to minimize ZMU05829 corrosion and clogging of the cooling water...

  • Page 75: Transporting And Storing Outboard Motor, Storing Outboard Motor

    EMU35581 Storing outboard motor erably as it warms up and can build up When storing your Yamaha outboard motor pressure in the fuel container. This can for prolonged periods of time (2 months or cause fuel leakage and a potential fire longer), several important procedures must hazard.

  • Page 76: Flushing Cooling Water Passage

    Maintenance Have a Yamaha dealer drain the gasoline EMU40963 Flushing cooling water passage from the vapor separator. Perform this procedure right after operation EMU41142 Cleaning the outboard motor for the most thorough flushing. When cleaning the outboard motor, the top...

  • Page 77: Replacement Parts, Periodic Maintenance, Severe Operating Conditions

    EMU2850C Replacement parts Periodic maintenance If replacement parts are necessary, use only EWM01872 genuine Yamaha parts or parts of equivalent WARNING design and quality. Any part of inferior quality These procedures require mechanical may malfunction, and the resulting loss of skills, tools, and supplies.

  • Page 78

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

  • Page 79: Maintenance Chart 1

     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 80

    Maintenance Initial Every Item Actions Page 20 hours 100 hours 300 hours 500 hours (3 months) (1 year) (3 years) (5 years) Inspection or Fuel filter (can be replacement as disassembled) necessary Inspection or Fuel line (High replacement as — pressure) necessary Inspection or...

  • Page 81: Maintenance Chart 2

    Connector connec- Inspection or tions/lead connec- replacement as — tions necessary (Yamaha) Inspection — Meter/gauge EMU46240 *1 cylinder head exhaust passage *2 cylinder head, cylinder block, cylinder block thermostat portion, oil cooler cover, exhaust guide EMU46080 Maintenance chart 2...

  • Page 82: Greasing

    Maintenance EMU46110 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft and trim rods) ZMU07181...

  • Page 83: Inspecting Spark Plug

    Do not attempt to diagnose any problems yourself. Instead, take the out- ZMU07183 board motor to a Yamaha dealer. You should 1. ECM (Electronic Control Module) cover periodically remove and check the spark plug because heat and deposits will cause...

  • Page 84: Inspecting Engine Idle Speed

    Maintenance To install the spark plug Wipe off any dirt from the threads, insu- lator, and gasket surface of the spark plug. Install the spark plug, and then tighten it to the specified torque. Spark plug tightening torque: 28 Nm (2.86 kgf-m, 20.7 ft-lb) ZMU06948 TIP: To check the spark plug...

  • Page 85: Changing Engine Oil

    Maintenance be accurate. [ECM01862] Inspect the engine idle speed. If the en- gine idle speed is out of specification, consult a Yamaha dealer or other quali- fied mechanic. Idle speed (in neutral): 650–750 r/min EMU41206 Changing engine oil ZMU05843 EWM00761 WARNING Start the engine.

  • Page 86

    13. Recheck the oil level using the dipstick to be sure the level falls between the up- per and lower marks. Consult your Yamaha dealer if the oil level is out of ZMU07184 specified level. 1. Oil changer Add the correct amount of oil through the filler hole.

  • Page 87

    Maintenance 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. Changing the engine oil by draining the oil Put the outboard motor in an upright po- sition (not tilted).

  • Page 88

    Maintenance ZMU07958 ZMU07959 1. Apron 1. Drain screw 2. Gasket Remove the oil filler cap. TIP: If the oil does not drain easily, change the tilt angle or turn the outboard motor to port and starboard to drain the oil. 10.

  • Page 89

    16. Recheck the oil level using the dipstick [ECM01851] to be sure the level falls between the up- per and lower marks. Consult your Yamaha dealer if the oil level is out of specified level. ZMU07020 Recommended engine oil: YAMALUBE 4 or 4-stroke outboard...

  • Page 90: Inspecting Wiring And Connectors

    22. 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.

  • Page 91: Inspecting Propeller, Removing Propeller

    Maintenance when loosening or tightening the propeller nut. Place a block of wood between the anti- cavitation plate and the propeller to prevent the propeller from turning. ZMU07186 ZMU06953 Checkpoints Check each of the propeller blades for ero-  sion from cavitation or ventilation, and oth- er damage.

  • Page 92: Installing Propeller

    Maintenance ening the propeller nut. to install the thrust washer before in- [EWM01891] stalling the propeller. Otherwise, the lower case and propeller boss could be damaged. [ECM01882] Install the spacer, washer, and propeller nut. Tighten the propeller nut to the specified torque.

  • Page 93: Changing Gear Oil

    If the gear oil is board motor in a vertical position, have a milky or contains water or a large Yamaha dealer change the gear oil. amount of metal particles, the gear Tilt the outboard motor so that the gear case may be damaged.

  • Page 94: Inspecting And Replacing Anode(s)

    Place the outboard motor in a vertical EMU29317 Inspecting and replacing anode(s) position. Using a flexible or pressurized Yamaha outboard motors are protected from filling device, inject the gear oil into the corrosion by sacrificial anodes. Inspect the gear oil drain screw hole.

  • Page 95: Checking Battery (for Electric Start Models)

    TIP: Inspect ground leads attached to external anodes on equipped models. Consult a Yamaha dealer for inspection and replace- Check the battery’s charge. If your boat ment of internal anodes attached to the pow- is equipped with the digital speedome- er unit.

  • Page 96: Connecting The Battery

    Connecting an accessory battery (optional) arcing and cause an explosion. If connecting an accessory battery, con- sult your Yamaha dealer about correct [EWM01913] wiring. It is recommendable to install the EMU35606 Connecting the battery...

  • Page 97: Storing The Battery, Disconnecting The Battery

    EMU38661 Storing the battery When storing your Yamaha outboard motor for prolonged periods of time (2 months or longer), remove the battery and store it in a cool, dry place. Check the battery and charge it if necessary.

  • Page 98: Trouble Recovery, Troubleshooting

    If your outboard motor requires repair, bring Starter will not operate. it to a Yamaha dealer. Q. Is your Yamaha Security System in the If the engine trouble-alert indicator is blink- lock mode? ing, consult your Yamaha dealer.

  • Page 99

    Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Are ignition parts malfunctioning? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace fuel filter. Q. Has alert system activated? A.

  • Page 100

    A. Have outboard motor adjusted to proper Q. Is low oil pressure-alert indicator on or transom height. blinking? A. Have serviced by a Yamaha dealer. Q. Has alert system activated? A. Find and correct cause of alert. Q. Is heat range of spark plugs incorrect? A.

  • Page 101: Impact Damage

    Q. Are outboard motor mounting bolts loose? Q. Are electrical parts malfunctioning? A. Tighten bolts or have serviced by a A. Have serviced by a Yamaha dealer. Yamaha dealer. Q. Is specified fuel not being used? Q. Is steering pivot loose or damaged? A.

  • Page 102: Replacing Fuse

    Trouble Recovery cy, be sure to keep the unused one tilted up and operate the other engine at low speed. ECM00371 NOTICE If the boat is operated with one engine in the water but not running, water may run into the exhaust pipe due to wave action, causing engine trouble.

  • Page 103

    1. Manual valve screw ZMU04337 Tilt the outboard motor up manually to 1. Fuse puller the desired position, and then tighten the Consult your Yamaha dealer if the new fuse manual valve screw by turning it clock- immediately blows again. wise. EMU40983...

  • Page 104

    Trouble Recovery Remove the top cowling. Remove the bolts, and then remove the fuel filter cover. ZMU07521 1. Filter housing 2. O-ring ZMU07519 3. Filter cup 4. Water detection switch lead 1. Bolt 2. Fuel filter cover Drain the water in the filter cup by soak- ing it up with a rag.

  • Page 105: 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 106

    INDEX Cooling water ........59 Cowling lock lever ......... 31 6Y8 Multifunction fuel management meters ..........42 6Y8 Multifunction meters ...... 36 6Y8 Multifunction speed & Digital electronic control-active fuel meters.......... 40 indicator ..........24 6Y8 Multifunction speedometers ..41 Digital Electronic Control alert ....

  • Page 107

    INDEX Fuel filter, checking....... 52 Optional meters ........42 Fuel leaks, checking for ......51 Outboard motor, checking ....53 Fuel level ..........51 Outboard motor disposal Fuel requirements......... 15 requirements........16 Fuel system .......... 51 Outboard motor (painted surface), Fuse, replacing ........

  • Page 108

    INDEX Shallow water ........66 Yamaha Security System lock and Shifting..........59 unlock mode ........23 Shifting (checks after engine warm up) ... 59 Spark plug, inspecting ......76 Specifications........10 Star labels..........17 Start-in-gear protection ......14 Starting engine........56 Start/Stop switch panel ......

  • Page 110

    Printed in Japan November 2014–0.5  1 ! Printed on recycled paper...

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