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Yamaha FL350A Owner's Manual
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Yamaha FL350A Owner's Manual

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F300A
FL300A
F350A
FL350A
F350A1
FL350A1
OWNER'S MANUAL
Read this manual carefully before operating this
outboard motor.
6AW-28199-77-E0

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Summary of Contents for Yamaha FL350A

  • Page 1 F300A FL300A F350A FL350A F350A1 FL350A1 OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6AW-28199-77-E0...
  • Page 2 EMU25052 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 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 EMU25121 F300A, FL300A, F350A, FL350A, F350A1, FL350A1 OWNER’S MANUAL ©2010 by Yamaha Motor Co., Ltd. 1st Edition, March 2010 All rights reserved. Any reprinting or unauthorized use without the written permission of Yamaha Motor Co., Ltd. is expressly prohibited.

  • Page 5: Table Of Contents

    Passengers ........2 Remote control transmitter....23 Overloading........2 Receiver .......... 24 Avoid collisions ......... 3 Yamaha Security System lock and Weather ..........3 unlock mode........24 Passenger training ......3 Digital electronic control ....25 Boating safety publications ....3 Digital electronic control-active Laws and regulations ......
  • Page 6 Instruments and indicators .... 38 Engine shut-off cord (lanyard)..54 Engine oil ........54 6Y9 Multifunction Color Gauge ..38 Engine ..........54 YAMAHA SECURITY SYSTEM Flushing device ....... 54 indicator ........38 Install cowling........55 Engine warm-up indicator ....38 Checking power trim and tilt Engine synchronization indicator ..
  • Page 7 Table of contents trim and tilt models) ...... 82 operate........112 Shallow water......... 83 Water separator-alert indicator Power trim and tilt models....83 blinks while cruising ....112 Operating in other conditions ..86 Treatment of submerged motor ... 114 Maintenance........

  • Page 8: Safety Information

    Safety information tor and the clamp bracket when the motor is EMU33622 Outboard motor safety trimmed or tilted. Keep body parts out of this Observe these precautions at all times. area at all times. Be sure no one is in this EMU36501 area before operating the power trim and tilt Propeller...

  • Page 9: Gasoline Exposure And Spills

    Have an approved personal flotation device tions. Overloading or incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han- recommends that you must wear a PFD dling and lead to an accident, capsizing or...

  • Page 10: Avoid Collisions

    Safety information swamping. EMU33880 Passenger training EMU33772 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. Be alert for conditions that limit your emergency.

  • Page 11: General Information

    EMU25183 Outboard motor serial number TIP: The outboard motor serial number is Consult your Yamaha dealer if you have any stamped on the label attached to the port questions concerning the digital electronic side of the clamp bracket. control serial number.

  • Page 12: Key Number

    General information ZMU05958 1. Digital electronic control serial number loca- tion ZMU07133 1. Key number EMU37290 EC Declaration of Conformity EMU25191 Key number (DoC) If a main key switch is equipped with the mo- This outboard motor conforms to certain por- tor, the key identification number is stamped tions of the European Parliament directive on your key as shown in the illustration.
  • Page 13 General information ZMU05943 1. CE marking location ZMU06040...

  • Page 14: Read Manuals And Labels

    Read all labels on the outboard motor and the boat. ● If you need any additional information, contact your Yamaha dealer. EMU33832 Warning labels If these labels are damaged or missing, contact your Yamaha dealer for replacements. F300A, FL300A, F350A, FL350A, F350A1, FL350A1 ZMU05950...
  • Page 15 General information ZMU06191 stops if you accidentally leave the EMU34651 Contents of labels helm, which could prevent a runaway The above warning labels mean as follows. boat. EMU33850 EWM01681 Other labels WARNING Keep hands, hair, and clothing away ● from rotating parts while the engine is running.
  • Page 16 General information Electrical hazard EMU35132 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 and requirements (350 HP@5500 r/min) EMU34520 Specifications FL300AET 220.7 kW@5500 r/min TIP: (300 HP@5500 r/min) “(AL)” stated in the specification data below FL350AET 257.4 kW@5500 r/min (350 HP@5500 r/min) represents the numerical value for the alumi- FL350AET1 257.4 kW@5500 r/min num propeller installed.

  • Page 18: Installation Requirements

    Specifications and requirements Gear ratio: Lubrication: 1.73(26/15) Wet sump Trim and tilt system: Recommended gear oil: Power trim and tilt Hypoid gear oil SAE 90 or 80W-90, Propeller mark: API GL-5 F300AET X Gear oil quantity: F350AET X F300AET 1.520 L F350AET1 X (1.607 US qt, 1.338 Imp.qt) FL300AET XL...

  • Page 19: Mounting Motor

    ECM02460 sibly causing a collision or throwing NOTICE passengers overboard. The Yamaha Security System is sold in If the engine ever starts in gear, the ● conformity with the relevant laws and start-in-gear protection device is not...

  • Page 20: Battery Requirements

    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: Start-In-Gear Protection

    EMU35140 Start-in-gear protection 6.3 L (6.66 US qt, 5.54 Imp.qt) With oil filter replacement: Yamaha outboard motors or Yamaha-ap- 6.5 L (6.87 US qt, 5.72 Imp.qt) proved digital electronic control units are equipped with start-in-gear protection de- If the recommended engine oil grades are vice(s).

  • Page 22: Fuel Requirements

    Spare parts, such as an extra set of spark ● in the fuel tank. Contaminated fuel can plugs. cause poor performance or engine Consult your Yamaha dealer for details. damage. Use only fresh gasoline that EMU39000 Emission control information has been stored in clean containers.

  • Page 23: Star Labels

    SPARK PLUG GAP (mm): SPARK PLUG: EMU25273 VALVE LASH (mm) IN: FUEL: GASOLINE Star labels YAMAHA MOTOR CO.,LTD. Your outboard motor is labeled with a Cali- fornia Air Resources Board (CARB) star la- ZMU06894 bel. See below for a description of your EMU25262 particular label.
  • Page 24 Specifications and requirements EMU40330 EMU40350 One Star—Low Emission Three Stars—Ultra Low Emission The one-star label identifies engines that The three-star label identifies engines that meet the Air Resources Board’s Personal meet the Air Resources Board’s Personal Watercraft and Outboard marine engine Watercraft and Outboard marine engine 2001 exhaust emission standards.

  • Page 25: Components

    Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els (order from dealer). F300A, FL300A, F350A, FL350A, F350A1, FL350A1 ZMU05813 1. Top cowling 2. Anti-cavitation plate 3. Propeller* 4.
  • Page 26 Components Single station models (single type) ZMU07273 1. Digital electronic control (side-mount type)* 2. Engine shut-off switch* 3. Clip* 4. Switch panel (for use with side-mount type)* 5. Digital electronic control (single type)* 6. Switch panel (for use with single type)* 7.
  • Page 27 Components Single station models (twin/triple type) ZMU07280 1. Digital electronic control (twin type)* 2. Engine shut-off switch* 3. Clip* 4. Switch panel (for use with twin type)* 5. Start/Stop switch panel (for use with twin type)* 6. Digital electronic control (triple type)* 7.
  • Page 28 Components Dual station models / main station ZMU07274 1. Digital electronic control (single type)* 12. All Start/Stop switch panel (for use with twin/triple type)* 2. Switch panel (for use with single type)* 13. Station selector switch panel 3. Engine shut-off switch* 14.
  • Page 29 Components Dual station models / sub station ZMU07275 1. Digital electronic control (single type)* 2. Start/Stop switch panel (for use with single type)* 3. Digital electronic control (twin type)* 4. Start/Stop switch panel (for use with twin type)* 5. Digital electronic control (triple type)* 6.

  • Page 30: Remote Control Transmitter

    4. Fuel management meter (Square type)* 5. 6Y9 Multifunction Color Gauge* EMU38590 Remote control transmitter The lock and unlock modes of the Yamaha Security System are selected using the re- ZMU06455 mote control transmitter. While the engine is Store the remote control transmitter carefully running, input from the remote control trans- so it will not be lost.

  • Page 31: Receiver

    If the transmitter is not operating starting. Consult your Yamaha dealer for in- properly, contact a Yamaha dealer. stallation of the receiver. Keep the remote control transmitter EMU41610 ●...

  • Page 32: Digital Electronic Control

    Components Yamaha Security Digital electronic control-active System indicator mode Lock Unlock Light EMU35943 Digital electronic control The digital electronic control actuates the ZMU05850 shifter, the throttle and remote electrical op- erations. Make sure that the active indicator lights and that the digital electronic control unit is correctly connected to the outboard motor.

  • Page 33: Digital Electronic Control-Active Indicator

    Off: Shift and throttle not operable. ● EMU34984 Digital electronic control-alert indicator The digital electronic control-alert indicator lights when trouble occurs in the connection ZMU05888 between the digital electronic control and outboard motor. Consult your Yamaha deal- er for details. ZMU05890 ZMU06227...

  • Page 34: Control Lever

    Components Digital electronic control for twin type has the function to automatically synchronize both engine speeds. Also digital electronic control for triple type has the function to automatically synchronize the engine speeds of the center engine and starboard side engine, adapting the port side engine speed.

  • Page 35: Neutral Interlock Trigger

    Components 5. Fully closed 6. Throttle 22.5˚ 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. ZMU06232 1. Fully open 2. Fully closed 3. Free accelerator Single type ZMU06285 1.

  • Page 36: Throttle Friction Adjuster

    Components Twin type 22.5 ZMU05962 ZMU05882 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 posi- tion. During operation the digital electronic con- trol-active indicator changes from continu- ously lit to blinking.

  • Page 37: Station Selector Switch

    Components ver could move freely and cause an ac- Triple type cident. Do not overtighten the friction adjuster. ● If there is too much resistance, it could be difficult to move the control lever, which could result in an accident. Single type ZMU05963 When constant speed is desired, tighten the...

  • Page 38: Engine Shut-Off Cord (Lanyard) And Clip

    Components gine selector switch works only when all the TIP: control levers are in neutral. The engine cannot be started with the clip re- moved. ZMU05977 ZMU06235 1. Engine selector switch EMU35773 Engine shut-off cord (lanyard) and clip The clip must be attached to the engine shut- off switch for the engine to run.

  • Page 39: Main Switch

    Components START START ZMU05818 ZMU07142 1. Cord 2. Clip 3. Engine shut-off switch EMU35782 Main switch The main switch controls the ignition system; its operation is described below. Only equipped with the main station. “ ” (off) ● ZMU05978 With the main switch in the “ ”...

  • Page 40: Start/Stop Switch Panel

    Components Single type START ZMU07146 ZMU06245 Triple type START START START START ZMU04567 ZMU05982 START ZMU07145 ZMU07146 Twin type EMU42080 Start/Stop switch panel The engine can be started or turned off by pressing the Start/Stop button. For twin and triple type, it is possible to start or turn off in- START START dividual engine.

  • Page 41: All Start/Stop Switch Panel

    Components ZMU07173 ZMU07176 1. Start/Stop button 1. All Start/Stop button EMU35153 Power trim and tilt switch on digital electronic control The power trim and tilt system adjusts the outboard motor angle in relation to the tran- som. Pressing the switch “ ”...

  • Page 42: Power Trim And Tilt Switch On Bottom Cowling

    Components ZMU05822 ZMU05823 EMU26154 EMU35851 Power trim and tilt switch on bottom Power trim and tilt switches cowling The power trim and tilt system adjusts the outboard motor angle in relation to the tran- The power trim and tilt switch is located on som.

  • Page 43: Tilt Limiter

    To remove the top cowling, turn the cowling TIP: lock levers at the front and side to release Consult your Yamaha dealer about changing them and lift off the cowling. Reverse this the setting. procedure when reinstalling the top cowling.

  • Page 44: Flushing Device

    Components ZMU05934 When installing the cowling, check to be sure it fits properly in the rubber seal. Be sure to check that the gap between the top cowling and the bottom cowling is even ZMU05825 all around the cowling. If the top cowling is 1.

  • Page 45: Instruments And Indicators

    EMU41640 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. ZMU07233 1. Arrow keys 2. Set button ZMU07235 3.

  • Page 46: Overheat Alert

    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. EMU41680 EMU41690 Overheat alert...

  • Page 47: Water Separator Alert

    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. EMU41710 Engine trouble alert ZMU07250 The pop-up window will appear if the engine Stop the engine immediately and see page...

  • Page 48: 6Y8 Multifunction Meters

    For the optional sensor, consult your Yamaha dealer. The tachome- ter unit is available in round or square types. Check your tachometer unit type. ZMU07254 Return to port and consult a Yamaha dealer immediately. EMU31653 6Y8 Multifunction meters ZMU05415 Multifunction meters have 6 kinds of meter 1.

  • Page 49: Yamaha Security System Information

    8. Oil pressure (4-stroke models) EMU38620 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. Unlock mode ZMU05430 Stop the engine immediately if the buzzer sounds and the low oil pressure-alert indica- tor blinks.

  • Page 50: Overheat Alert

    Consult a Yamaha dealer im- immediately and see page 110 of this manu- mediately. al to drain the water from the fuel filter. Get back to the port soon and consult a Yamaha EMU36170 Low battery voltage-alert dealer immediately.

  • Page 51: 6Y8 Multifunction Speed & Fuel Meters

    Instruments and indicators port soon if the low battery voltage-alert de- vice has activated. For charging the battery, consult your Yamaha dealer. ZMU05432 1. Set button 2. Mode button ZMU05427 EMU36232 6Y8 Multifunction speed & fuel meters The speed & fuel meter unit shows the boat...

  • Page 52: 6Y8 Multifunction Fuel Management Meters

    The fuel management meter has the func- available. For the optional sensors, consult tions of fuel flow meter, total consumption your Yamaha dealer. display, fuel economy display, and remaining After the main switch is first turned on, all the fuel display. The chosen display is selected displays come on as a test.

  • Page 53: Optional Meters

    Instruments and indicators 2. Multifunction display EMU41730 Optional meters Various meters can be installed onto the out- board motor according to user preference. For details, consult your Yamaha dealer. Analog tachometer ZMU07245 Trim meter ZMU04581...

  • Page 54: Engine Control System

    Alert system ECM00091 NOTICE Do not continue to operate the engine if a alert device has activated. Consult your Yamaha dealer if the problem cannot be located and corrected. EMU35184 ZMU05891 Digital Electronic Control alert If during operation of the outboard motor any...

  • Page 55: Low Oil Pressure Alert

    Engine control system The pop-up window will appear on the off the alert activation on the engine not af- ● Multi-Display. fected by overheating, turn off the main 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.

  • Page 56: Water Separator Alert

    The outboard motor is equipped with a water drain the water from the fuel filter. Get back separator alert system. If water separated to the port soon and consult a Yamaha deal- from the fuel exceeds a specific volume, the er immediately.

  • Page 57: Installation

    Consult your Yamaha dealer or boat manu- takes for the cooling system may not get ad- facturer for further information on determin- equate water supply, which can cause...
  • Page 58 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 59: Operation

    Operation For 10 hours for breaking in engine avoid ex- EMU36381 First-time operation tended idling, rough water and crowded ar- eas. EMU36391 Fill engine oil For the first hour of operation: The engine is shipped from the factory with- Run the engine at varying speeds up to out engine oil.

  • Page 60: Remove Cowling

    If enough water to raise the float ring ZMU05852 is found in the fuel, or if a significant amount of debris is found, the fuel tank should be checked and cleaned by a Yamaha dealer. ZMU05853 EMU36442 ZMU05854 Fuel system...

  • Page 61: Engine Shut-Off Cord (Lanyard)

    NOTICE: If the be sure the level falls between the upper garden hose connector is not properly and lower marks. Consult your Yamaha connected, cooling water can leak out dealer if the oil level is out of specified and the engine can overheat during oper- level or if it appears milky or dirty.

  • Page 62: Install Cowling

    If the top cowling is loose, have it repaired by your EMU36941 Install cowling Yamaha dealer. Be sure that all cowling lock levers are released. Be sure that the rubber seal is seated all the way around the engine.

  • Page 63: Battery

    Operation the outboard motor accidentally falls. Body parts can be crushed between the ● motor and the clamp bracket when the motor is trimmed or tilted. Be sure no one is near the outboard ● motor before performing this check. Check the power trim and tilt unit for any sign of oil leaks.

  • Page 64: Filling Fuel

    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. EMU27452 Operating engine EMU30025 Filling fuel EWM00420 WARNING EWM01830 WARNING Before starting the engine, make sure ●...

  • Page 65: Change Of Station

    The digital electronic control-active indi- be thrown forward. cator for the selected station lights. 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-...
  • Page 66 To operate the Yamaha Security System correctly, use the transmitter as close as possible from the receiver. If Yamaha Security System may not oper- ● ate correctly, repeat the activating proce- ZMU06237 dure once again.
  • Page 67 Operation the starter motor is turned continu- ously for more than 5 seconds, the battery will be quickly discharged, START START thus making it impossible to start the engine. The starter can also be dam- aged. If the engine will not start after 5 seconds of cranking, return the main switch to “...
  • Page 68 ZMU07148 gines has started, it can be stopped by pressing the Start/Stop button on the All start/Stop panel. EMU42170 Procedure for dual station models (main station) If equipped with the Yamaha Security System: If the lock mode of the Yamaha...
  • Page 69 Do not keep the start- possible from the receiver. er motor turning for more than 5 If Yamaha Security System may not oper- seconds. If the starter motor is turned ● ate correctly, repeat the activating proce- continuously for more than 5 sec- dure once again.
  • Page 70 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 71: Checks After Starting Engine

    Stop the engine and check whether the cooling water inlet on the lower case or the cooling water pilot hole is blocked. Consult your Yamaha dealer if the problem cannot be located and corrected. ZMU07148...

  • Page 72: Checks After Engine Warm Up

    Operation EMU36531 Checks after engine warm up EMU36541 Shifting While the boat is tightly moored, and without applying throttle, confirm that the engine shifts smoothly into forward and reverse, and back to neutral. EMU41820 Stop switches Perform the following procedure to check that the main switch and engine shut-off switch operate properly.
  • Page 73 Operation side control lever. The center engine runs at the average ● speed of port side and starboard side en- gines’ speeds. Operate the starboard side engine using ● the starboard side control lever. Push the engine selector switch once to operate the port side and starboard side engines.

  • Page 74: Shifting

    Operation ZMU05999 ZMU06285 EMU35124 1. Neutral interlock trigger Shifting Move the control lever firmly and crisply EWM00180 WARNING forward (for forward gear) or backward Before shifting, make sure there are no (for reverse gear) 22.5 (a detent can swimmers or obstacles in the water near felt).

  • Page 75: Stopping Boat

    Operation ZMU05829 ZMU06239 EMU31742 Stopping boat EWM01510 WARNING Do not use the reverse function to slow ● down or stop the boat as it could cause you to lose control, be ejected, or im- pact the steering wheel or other parts of the boat.
  • Page 76 Operation pipe due to the wave action, causing en- gine trouble. ZMU06004 ZMU07323 Operate the port side engine using the port ● ZMU06003 side control lever. 1. Port side control lever When all engines have started, the center ● 2. Starboard side control lever engine will run at the average speed of 3.
  • Page 77 Operation ZMU06005 ZMU06007 ZMU07324 ZMU07325 Operate the port side engine using the port Operate the port side engine using the port ● ● side control lever. side control lever. Operate the starboard side engine using Operate the center engine using the star- ●...
  • Page 78 Operation ZMU06009 ZMU06010 ZMU07326 ZMU07327 Operate the center engine using the port Operate the center engine using the port ● ● side control lever. side control lever. Operate the starboard side engine using ● the starboard side control lever. Operating the center engine ZMU06002...

  • Page 79: Boat Direction

    Operation EMU35901 Boat direction The illustrations below indicate the boat direction when operating the three outboard motors. When using the port side engine, center engine and starboard side engine ZMU06011 :Boat direction and turning force The size of the arrow is proportional to the turning force. :Propulsion...
  • Page 80 Operation When using the port side engine and starboard side engine ZMU06012 :Boat direction and turning force The size of the arrow is proportional to the turning force. :Propulsion...
  • Page 81 Operation When using the center engine ZMU06013 :Boat direction and turning force The size of the arrow is proportional to the turning force. :Propulsion...

  • Page 82: Trolling

    Operation TIP: EMU30880 Trolling Trolling is affected by currents and other ● EMU41830 operating conditions and may differ from Adjusting trolling speed the actual engine speed. When the control lever is either in the for- When warming up a cold engine, the troll- ●...
  • Page 83 “ ” (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 ZMU05833 remote control transmitter. Short beep will sound once when locking the securi- ty system.

  • Page 84: Procedure For Dual Station Models

    If equipped with the Yamaha Security ZMU07148 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 85: Trimming Outboard Motor

    Operation tween the motor and the clamp bracket EMU27862 Trimming outboard motor when the motor is trimmed or tilted. Use caution when trying a trim position EWM00740 ● WARNING for the first time. Increase speed gradu- Excessive trim for the operating condi- ally and watch for any signs of instabil- tions (either trim up or trim down) can ity or control problems.

  • Page 86: Adjusting Boat Trim

    Operation EMU27912 Adjusting boat trim When the boat is on plane, a bow-up attitude results in less drag, greater stability and effi- ciency. This is generally when the keel line of the boat is up about 3 to 5 degrees. With the bow up, the boat may have a greater tenden- cy to steer to one side or the other.

  • Page 87: Tilting Up And Down

    Operation Bow Down ECM00991 NOTICE Too much trim-in causes the boat to “plow” through the water, decreasing fuel economy Before tilting the outboard motor, fol- ● and making it hard to increase speed. Oper- low the procedure under “Stopping en- ating with excessive trim-in at higher speeds gine”...
  • Page 88 Operation ZMU05839 ZMU06280 Set the tilt support lever to support the engine. WARNING! After tilting the outboard motor, be sure to support it with the tilt support knob or tilt sup- port lever. Otherwise the outboard motor could fall back down suddenly if oil in the power trim and tilt unit or in the power tilt unit loses pressure.

  • Page 89: Procedure For Tilting Down

    Operation ZMU05856 Push the power trim and tilt switch “ ” (down) to lower the outboard motor to the desired position. ZMU05824 Once the outboard motor is supported with the tilt support lever, press the pow- er trim and tilt switch “ ”...

  • Page 90: Shallow Water

    Otherwise severe dam- age from overheating can result. TIP: F350A, FL350A, F350A1, FL350A1: When ZMU05841 the outboard motor is partially tilted up for shallow water operation, the engine speed may be controlled around 2500 r/min. This occurs due to protect the power trim and tilt unit and does not indicate a malfunction.
  • Page 91 Operation and tilt switch. WARNING! Using the power trim and tilt switch on the bot- tom cowling while the boat is moving or engine is on could increase the risk of falling overboard and could distract the operator, increasing the risk of collision with another boat or an obstacle.
  • Page 92 Operation motor may hits an object in the water as tilting down. Close the throttle so that the engine slows to idle speed. After the engine is at idle speed in gear move the control lever firmly and crisply into the neutral position. ZMU05840 ZMU06236 ZMU05841...

  • Page 93: Operating In Other Conditions

    Operation EMU41370 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 corrosion and clogging of the cooling water passages with deposits. Also, rinse the exte- rior of the outboard motor with fresh water.

  • Page 94: Maintenance

    EMU35580 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 95: Procedure

    101. Inspect the oil for the presence of water that indicates a leaky seal. Seal replacement should be per- formed by an authorized Yamaha dealer prior to use. Grease all grease fittings. For further de- tails, see page 94.

  • Page 96: Cleaning The Outboard Motor

    If necessary, nector. clean and paint the areas. A touch-up paint is Reinstall the garden hose connector available from your Yamaha dealer. onto the fitting on the bottom cowling. EMU2847C Tighten connector securely.

  • Page 97: Replacement Parts

    (rpm) for many hours to perform a maintenance procedure, Operating continuously at a low engine ● have a Yamaha dealer or other qualified speed (rpm) for many hours mechanic do the work. Operating without sufficient time for engine ●...

  • Page 98: Maintenance Chart 1

    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 20 hours Item...
  • Page 99 Maintenance Initial Every 20 hours Item Actions hours (1 hours (3 hours (5 months) year) years) years) Fuel filter (can be dis- Inspection or replace- assembled) ment as necessary Fuel line (High pres- Inspection sure) Fuel line (High pres- Inspection or replace- sure) ment as necessary Fuel line (Low pres-...

  • Page 100: Maintenance Chart 2

    (3 hours (5 months) year) years) years) Wire harness connec- Inspection or replace- tions/wire coupler con- ment as necessary nections (Yamaha) Meter/gauge Inspection EMU34451 Maintenance chart 2 Every Item Actions 1000 hours Exhaust guide/exhaust Inspection or replace- manifold ment as necessary...

  • Page 101: Greasing

    Maintenance EMU28943 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) F300A, FL300A, F350A, FL350A, F350A1, FL350A1 ZMU05859...

  • Page 102: Cleaning And Adjusting Spark Plug

    ZMU05901 Instead, take the outboard motor to a Remove the bolts to move the plate. Yamaha dealer. You should periodically re- move and inspect the spark plug because heat and deposits will cause the spark plug to slowly break down and erode.
  • Page 103 Maintenance 2. Spark plug part number 3. Spark plug I.D. mark (NGK) Spark plug gap: 1.0–1.1 mm (0.039–0.043 in) When fitting the plug, wipe off any dirt from the threads, and then screw it in to the correct torque. ZMU05903 Spark plug torque: Remove the spark plug.
  • Page 104 Maintenance ZMU05901 Bolt tightening torque: 8.0 Nm (0.8 kgf-m, 5.8 ft-lb) 12. Install the rear cover, and tighten the ZMU05929 bolts. ZMU05900 Bolt tightening torque: 8.0 Nm (0.8 kgf-m, 5.8 ft-lb) 13. Be sure to fit the 4 positions during in- ZMU05932 stallation.

  • Page 105: Inspecting Engine Idle Speed

    Maintenance consult a Yamaha dealer or other quali- fied mechanic. Idle speed (in neutral): 650 50 r/min EMU35084 Changing engine oil ECM01710 NOTICE ZMU05930 Change the engine oil after the first 20 hours of operation or 3 months, and ev- ery 100 hours or at 1-year intervals there- after.

  • Page 106: Checking Propeller

    Maintenance ZMU01897 Checkpoints Check each of the propeller blades for ero- ● sion from cavitation or ventilation, or other damage. Check the propeller shaft for damage. ● Check the splines for wear or damage. ● Check for fish line tangled around the pro- ●...

  • Page 107: Installing Propeller

    Maintenance ation and be lost. Apply Yamaha marine grease or a corro- sion resistant grease to the propeller shaft. Install the thrust washer and propeller on the propeller shaft. NOTICE: Make sure to install the thrust washer before in- stalling the propeller. Otherwise, the lower case and propeller boss could be damaged.

  • Page 108: Changing Gear Oil

    Remove the cooling water inlet covers case may be damaged. Have a Yamaha dealer check and repair the on both sides of the gear case. Be care- ful not to lose the bolt and nut. outboard motor.

  • Page 109: Inspecting And Replacing Anode(S)

    FL300AET 1.310 L EMU29313 Inspecting and replacing anode(s) (1.385 US qt, 1.153 Imp.qt) FL350AET 1.310 L Yamaha outboard motors are protected from (1.385 US qt, 1.153 Imp.qt) corrosion by sacrificial anodes. Inspect the FL350AET1 1.310 L external anodes periodically. Remove scales (1.385 US qt, 1.153 Imp.qt)

  • Page 110: Checking Battery (For Electric Start Models)

    Consult a tery’s charge. If the battery needs charg- Yamaha dealer for inspection and replace- ing, consult your Yamaha dealer. ment of internal anodes attached to the pow- Check the battery connections. They er unit.
  • Page 111 Connecting an accessory battery (optional) If connecting an accessory battery, con- sult your Yamaha dealer about correct wiring. It is recommendable to install the fuse to the isolator lead as shown in the illustration. For the fuse size, be sure to follow local regulations.

  • Page 112: Disconnecting The Battery

    Maintenance Twin engines Triple engines ZMU05941 ZMU05956 1. Starboard side engine 1. Starboard side engine 2. Port side engine 2. Center engine 3. Red cable 3. Port side engine 4. Black cable 4. Red cable 5. Isolator lead with circuit protection 5.

  • Page 113: Storing The Battery

    EMU38660 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 114: Trouble Recovery

    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 115 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 116 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 117: Temporary Action In Emergency

    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 118: Running In An Emergency (Twin Engines Or Triple Engines)

    Trouble Recovery damage and a fire hazard. EMU35790 Running in an emergency (twin Consult your Yamaha dealer if the new fuse engines or triple engines) immediately blows again. Normally use all outboard motors together for cruising. When using only one or two en-...

  • Page 119: Operate

    If the engine cannot be tilted up or down with the power trim and tilt because of a dis- charged battery or a failure with the power trim and tilt unit, consult your Yamaha deal- EMU35613 Water separator-alert indicator blinks...
  • Page 120 Trouble Recovery ZMU05895 Unscrew the filter cup from the filter housing. NOTICE: Be careful not to twist the water detection switch lead when unscrewing the filter cup. [ECM01960] ZMU05892 Disconnect the water detection switch coupler. NOTICE: Be careful not to get any water on the water detection switch coupler, otherwise a malfunc- tion could occur.

  • Page 121: 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 immedi- ZMU05895 ately. NOTICE: Do not attempt to run the...
  • Page 122 YAMAHA MOTOR CO., LTD. Printed in Japan March 2010–0.1  1 ! Printed on recycled paper...

This manual is also suitable for:

Fl300aF350aF300aF350a1Fl350a1

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