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Yamaha F300A Owner's Manual

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OWNER'S MANUAL
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Read this manual carefully before operating this
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outboard motor.
F300A
FL300A
F350A
FL350A
F350A1
FL350A1
6AW-28199-76-E0

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Summary of Contents for Yamaha F300A

  • Page 1 F300A FL300A F350A FL350A F350A1 FL350A1 OWNER’S MANUAL Read this manual carefully before operating this outboard motor. 6AW-28199-76-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 ©2009 by Yamaha Motor Co., Ltd. 1st Edition, February 2009 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

    Table of contents Safety information......1 Multiple batteries ......12 Propeller selection ......12 Outboard motor safety ....1 Counter rotation models ....13 Propeller..........1 Start-in-gear protection ....13 Rotating parts........1 Engine oil requirements ....14 Hot parts ........... 1 Fuel requirements ......
  • Page 6 Table of contents Start-up checks ....... 36 Cooling water ........57 Adjusting trolling speed ....37 Warming up engine....... 58 Low oil pressure-alert...... 37 Electric start models ......58 Overheat alert ......... 37 Checks after engine warm-up ..58 Water separator alert ...... 38 Shifting ..........
  • Page 7 Table of contents Maintenance chart 1 ....... 81 Maintenance chart 2 ....... 83 Greasing ......... 84 Cleaning and adjusting spark plug ..........85 Inspecting idling speed ....88 Changing engine oil ......88 Checking wiring and connectors ..88 Checking propeller ......89 Removing propeller ......

  • Page 8: Safety Information

    Safety information EMU33622 tor and the clamp bracket when the motor is 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

    Personal flotation devices cording to the boat manufacturers instruc- Have an approved personal flotation device tions. Overloading or incorrect weight (PFD) on board for every occupant. Yamaha distribution can compromise the boats han-...

  • Page 10: Avoid Collisions

    Safety information dling and lead to an accident, capsizing or boating in hazardous weather. 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.

  • Page 11: General Information

    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.

  • Page 12: Key Number

    General information ZMU05958 1. Key number 1. Digital electronic control serial number loca- tion EMU37290 EC Declaration of Conformity (DoC) This outboard motor conforms to certain por- tions of the European Parliament directive relating to machinery. Each conformed outboard motor accompa- nied with EC DoC.EC DoC contains the fol- lowing information;...
  • 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. EMU33831 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 EMU35132 Electrical hazard 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 EMU35950 Idling speed (in neutral): Specifications 650 ±50 r/min TIP: Engine: Type: “*” means, select the engine oil referring to 4-stroke V the chart of engine oil paragraph. For further Displacement: information, see page 14. 5330.0 cm EMU2821E Bore ×...

  • Page 18: Installation Requirements

    Specifications and requirements F350AET1 X API GL-5 FL300AET XL Gear oil quantity: FL350AET XL F300AET 1.520 L FL350AET1 XL (1.607 US qt, 1.338 Imp.qt) Fuel and oil: F350AET 1.520 L Recommended fuel: (1.607 US qt, 1.338 Imp.qt) F300AET Regular unleaded gasoline F350AET1 1.520 L F350AET Premium unleaded gaso- (1.607 US qt, 1.338 Imp.qt)

  • Page 19: Digital Electronic Control Requirements

    Your dealer or other person experienced in Consult your Yamaha dealer for setting. proper rigging should mount the motor using EMU25694 correct equipment and complete rigging in- Battery requirements structions.

  • Page 20: Counter Rotation Models

    These propellers are identified with the Your Yamaha dealer can help you select the letter “L” after the size indication on the pro- right propeller for your boating needs. Select peller. WARNING! Never use a standard...

  • Page 21: Engine Oil Requirements

    EMU36360 Do not use anti-fouling paint which includes Fuel requirements copper or graphite. These paints can cause EMU37711 more rapid engine corrosion. Gasoline F300A, FL300A...

  • Page 22: Motor Disposal Requirements

    This label is attached to the clamp bracket or Spare parts, such as an extra set of spark the swivel bracket. plugs. Consult your Yamaha dealer for details. EMU39000 Emission control information The following labels are affixed to outboard motors that conform to US regulations.

  • Page 23: Star Labels

    Specifications and requirements ZMU01702 EMU25273 EMU25290 Star labels Two Stars—Very Low Emission The two-star label identifies engines that Your outboard motor is labeled with a Cali- meet the Air Resources Board’s 2004 ex- fornia Air Resources Board (CARB) star la- haust emission standards.
  • Page 24 Specifications and requirements ZMU01704 EMU33861 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 25: Components

    EMU2579M Components diagram TIP: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. F300A, FL300A, F350A, FL350A, F350A1, FL350A1 ZMU05813 1. Top cowling 2. Anti-cavitation plate 3. Propeller* 4. Cooling water inlet 5.
  • Page 26 Components Single station models ZMU06310 1. Digital electronic control (side-mount type)* 2. Clip 3. Engine shut-off switch 4. Switch panel (for use with side-mount type)* 5. Digital electronic control (single type)* 6. Switch panel (for use with single type)* 7. Digital electronic control (twin type)* 8.
  • Page 27 Components Dual station models / main station ZMU05974 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. Clip 6. Engine shut-off switch 7.
  • Page 28 Components Dual station models / sub station ZMU05975 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. Clip 6. Engine shut-off switch 7.

  • Page 29: Digital Electronic Control

    Components ZMU05485 1. Tachometer unit (Square type)* 2. Speedometer unit (Square type)* 3. Speed & fuel meter unit (Square type)* 4. Fuel management meter (Square type)* EMU35942 Digital electronic control The digital electronic control actuates the shifter, the throttle and remote electrical op- erations.

  • Page 30: Digital Electronic Control-Active Indicator

    Components EMU34972 Digital electronic control-active indicator The digital electronic control-active indicator indicates that the digital electronic control system is in the operating state. ZMU05850 ZMU06276 ZMU05851 ZMU05888 ZMU05959 1. Control lever 2. Digital electronic control-active indicator 3. Digital electronic control-alert indicator 4.

  • Page 31: Digital Electronic Control-Alert Indicator

    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. ZMU05960 1. Digital electronic control-alert indicator EMU35821 Control lever Moving the lever forward from the neutral po- sition engages forward gear.

  • Page 32: Neutral Interlock Trigger

    Components Digital electronic control for twin type has the 4. Shift function of automatically synchronizing the 5. Fully closed engine speeds of both engines. 6. Throttle 7. Fully open Also digital electronic control for triple type has the function of automatically synchroniz- EMU26201 ing the engine speeds of the center engine Neutral interlock trigger...
  • Page 33 Components Twin type 22.5˚ ZMU06232 ZMU05882 1. Fully open 2. Fully closed 22.5 3. Free accelerator Single type ZMU05883 1. Fully open 2. Fully closed 3. Free accelerator ZMU05880 Triple type 22.5 ZMU05881 ZMU05961 1. Fully open 2. Fully closed 3.

  • Page 34: Throttle Friction Adjuster

    Components ver could move freely and cause an ac- cident. 22.5 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 ZMU05962 1.

  • Page 35: Station Selector Switch

    Components Triple type gine selector switch works only when all the control levers are in neutral. ZMU05963 ZMU05977 When constant speed is desired, tighten the adjuster to maintain the desired throttle set- 1. Engine selector switch ting. EMU35711 EMU35772 Station selector switch Engine shut-off cord (lanyard) and The station selector switch can select either clip...
  • Page 36 Components TIP: The engine cannot be started with the clip re- moved. Main station ZMU05978 1. Cord 2. Clip 3. Engine shut-off switch ZMU06235 Sub station ZMU04565 ZMU05979 START START ZMU05818 ZMU05980...

  • Page 37: Main Switch

    Components Single type START ZMU05981 ZMU06245 1. Cord 2. Clip START 3. Engine shut-off switch EMU35781 Main switch The main switch controls the ignition system; its operation is described below. Only equipped with the main station. “ ” (off) ZMU04567 With the main switch in the “...

  • Page 38: Starter Button

    Components Triple type Triple type START START START ZMU05982 ZMU05985 EMU35730 EMU35740 Starter button Engine stop button To start the engine with the electric starter, To stop the engine, push the red button. Only push the black button. Only equipped on the equipped on the sub station.

  • Page 39: Power Trim And Tilt Switch On Digital Electronic Control

    Components Triple type ZMU05822 ZMU05988 EMU26153 EMU35152 Power trim and tilt switch on bottom Power trim and tilt switch on digital engine cowling electronic control The power trim and tilt switch is located on The power trim and tilt system adjusts the the side of the bottom engine cowling.

  • Page 40: Power Trim And Tilt Switches

    69 and 71. EMU35040 Tilt limiter This outboard motor is equipped with a tilt limiter that controls the tilt range. TIP: Consult your Yamaha dealer about changing the setting. EMU35030 Tilt support lever for power trim and ZMU05835 tilt model...

  • Page 41: Cowling Lock Lever (Turn Type)

    Components ZMU05852 ZMU05824 ZMU05853 ECM00660 NOTICE When installing the cowling, align the 3 posi- tions of the grommets to fit the cowling in the Do not use the tilt support lever or knob rubber seal. when trailering the boat. The outboard motor could shake loose from the tilt sup- port and fall.

  • Page 42: Flushing Device

    The water separator-alert indicator of 6Y8 Multifunction Tachometer will blink. The buzzer will sound intermittently only when the gear shift is in neutral. If the alert system has activated, stop the engine and consult a Yamaha dealer im- mediately. ZMU05825 1. Flushing device EMU35561...

  • Page 43: Instruments And Indicators

    6. Water detection-alert indicator sensor to the unit. For the optional sensor, 7. Battery voltage 8. Oil pressure (4-stroke models) consult your Yamaha dealer. The tachome- ter unit is available in round or square types. EMU36120 Check your tachometer unit type.

  • Page 44: Adjusting Trolling Speed

    Check the engine oil quantity and replenish oil if necessary. If the alert device has activated while the appropriate engine oil quantity is maintained, consult your Yamaha dealer. ECM01601 NOTICE Do not continue to run the engine if the...

  • Page 45: Water Separator Alert

    If the battery voltage drops, the low battery to drain the water from the fuel filter. Get voltage-alert indicator and the battery volt- back to the port soon and consult a Yamaha age value will start to blink. Get back to the dealer immediately.

  • Page 46: 6Y8 Multifunction Speedometers

    ZMU05433 ature display, depth display, and clock will also be available. For the optional sensors, 1. Speedometer consult your Yamaha dealer. 2. Fuel meter The speed & fuel meter unit is available in 3. Multifunction display round or square types. Check your speed &...

  • Page 47: 6Y8 Multifunction Fuel Management Meters

    Instruments and indicators ation. For more information, see the operation manual originally supplied with the meter. ZMU05436 1. Set button 2. Mode button ZMU05438 1. Set button 2. Mode button ZMU05437 1. Speedometer 2. Fuel meter ZMU05439 3. Multifunction display 1.

  • Page 48: 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. EMU35183 ZMU05891 Digital Electronic Control alert If during operation of the outboard motor any...
  • Page 49 Engine control system The buzzer will sound. Main station START START START ZMU05989 Sub station ZMU06297 ZMU05990 ZMU04583 START START ZMU05991 ZMU05827 ZMU05992...

  • Page 50: Low Oil Pressure Alert

    Twin engine drive or triple engine drive us- is correct and the alert device does not ers: switch off, consult your Yamaha dealer. If the overheat alert system of one engine ac- Twin engine drive or triple engine drive us- tivates, the engine will slow down.

  • Page 51: Installation

    Consult your Yamaha dealer or boat manu- excessive propeller slip, and the water in- facturer for further information on determin- takes for the cooling system may not get ad- ing the proper mounting location.
  • Page 52 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 53: Operation

    Operation EMU36381 For 10 hours for breaking in engine avoid ex- First-time operation tended idling, rough water and crowded ar- EMU36391 eas. 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 54: Remove Cowling

    ZMU05852 water. If enough water to raise the float ring 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 Fuel system...

  • Page 55: Engine Shut-Off Cord (Lanyard)

    Operation Operate the throttle levers several times to make sure there is no hesitation in their travel. Operation should be smooth over the complete range of motion, and each le- ver should return completely to the idle po- sition. EMU36922 Engine shut-off cord (lanyard) Inspect the engine shut-off cord for damage, ZMU05979...

  • Page 56: Engine Oil

    Consult your Yamaha gine can overheat during operation. dealer if the oil level is out of specified [ECM01800] level or if it appears milky or dirty.

  • Page 57: Install Cowling

    If the top cowling is loose, have it repaired by your EMU36940 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 58: 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 59: Filling Fuel

    Operation start the engine. according to local laws or regulations. Refer to the battery manufacturer’s instruc- EMU27451 Operating engine tions for checks for your particular battery. EMU31812 EMU30023 Sending fuel Filling fuel If there is a fuel joint or a fuel cock on the EWM01830 boat, firmly connect the fuel line to the WARNING...

  • Page 60: Starting Engine

    Operation Place the control lever in “ ” (neutral). TIP: The start-in-gear protection device prevents the engine from starting except when in neu- tral. ZMU05976 The digital electronic control-active indi- cator for the selected station lights. EMU27493 Starting engine EWM01600 ZMU06236 WARNING Before starting the engine, make sure...
  • Page 61 Operation ZMU04628 Turn the main switch to “ ” (start), and hold it for a maximum of 5 seconds. START START START ZMU05828 ZMU06246 START ZMU05993 Turn the main switch to “ ” (on) to ZMU04596 make sure that the digital electronic con- trol-active indicator lights.
  • Page 62 Operation TIP: The start-in-gear protection device prevents the engine from starting except when in neu- START tral. ZMU05830 START ZMU05829 Turn the main switch “ ” (on) to make sure that the digital electronic control- active indicator lights. The engine can not be started when the digital electronic control-alert indicator lights.
  • Page 63 Operation start after 5 seconds of cranking, re- of the sub station lights. turn the main switch to “ ” (on), wait 10 seconds, then crank the engine again. [ECM00192] TIP: The sub station can start and stop the en- gine.

  • Page 64: Checks After Starting Engine

    Operation ZMU05997 ZMU05984 Push the starter button to start the mo- tor. NOTICE: Never push the starter button while the engine is running. Do not keep the starter motor turning for more than 5 seconds. If the starter motor is turned continuously for more than 5 seconds, the battery will be quickly discharged, thus making it impossible to start the engine.

  • Page 65: Warming Up Engine

    EMU35880 Selecting outboard motor blocked. Consult your Yamaha dealer if (triple engine) the problem cannot be located and cor- rected. After all engines have started, set all control levers to Neutral.
  • Page 66 Operation Operate the port side engine using the port side control lever. The center engine runs at the idling speed. Operate the starboard side engine using the starboard side control lever. Push the engine selector switch twice to operate the center engine. ZMU05999 Operate the port side engine using the port side control lever.

  • Page 67: Shifting

    Operation equipped). ZMU06000 ZMU06285 1. Neutral interlock trigger Move the control lever firmly and crisply forward (for forward gear) or backward (for reverse gear) 22.5° (a detent can felt). 22.5˚ 22.5˚ ZMU05999 EMU35124 Shifting EWM00180 WARNING Before shifting, make sure there are no swimmers or obstacles in the water near ZMU06238 you.

  • Page 68: Stopping Boat

    Operation slows to idle speed. 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 69 Operation pipe due to the wave action, causing en- gine trouble. ZMU06004 Operate the port side engine using the port side control lever. When all engines have started, the center engine will run at the average speed of port side and starboard side engines’ speeds.
  • Page 70 Operation Operate the port side engine using the port Operating the center engine and star- side control lever. board side engine Operate the starboard side engine using the starboard side control lever. Operating the port side engine and center engine ZMU06008 ZMU06006 ZMU06009...
  • Page 71 Operation ZMU06010 Operate the center engine using the port side control lever.

  • Page 72: 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 73 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 74 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 75: Stopping Engine

    Operation EMU27821 Stopping engine Before stopping the engine, first let it cool off for a few minutes at idle or low speed. Stop- ping the engine immediately after operating at high speed is not recommended. EMU35801 Procedure for single station models Turn the main switch to “...

  • Page 76: Trimming Outboard Motor

    Operation cause boat instability and can make steering the boat more difficult. This in- creases the possibility of an accident. If the boat begins to feel unstable or is hard to steer, slow down and/or readjust the trim angle. The trim angle of the outboard motor helps determine the position of the bow of the boat in the water.

  • Page 77: Adjusting Boat Trim

    Operation angle can cause loss of control. If equipped with a power trim and tilt switch located on the bottom cowling, use the switch only when the boat is at a complete stop with the engine off. Do not adjust the trim angle with this switch while the boat is moving.

  • Page 78: 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 79: Procedure For Tilting Up (Power Trim And Tilt Models)

    Operation stopped 30 seconds or more. EMU35505 Procedure for tilting up (power trim and tilt models) The main switch must be “ ” (on) for the power trim and tilt switch on the dig- ital electronic control to operate. Place the control lever in neutral. ZMU06280 ZMU06236 ZMU05837...

  • Page 80: Procedure For Tilting Down (Power Trim And Tilt Models)

    Operation ZMU05839 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 81: Shallow Water

    Operation ZMU05856 ZMU05841 Push the power trim and tilt switch “ ” (down) to lower the outboard motor to the desired position. ZMU06021 ZMU06258 ZMU05842 EMU28061 Shallow water ZMU05840 EMU32871 Power trim and tilt models The outboard motor can be tilted up partially to allow operation in shallow water.
  • Page 82 Operation unit could be damaged. Do not tilt the outboard motor up so that the cooling water inlet on the lower unit is above the surface of the water when setting up for and cruising in shallow water. Otherwise severe dam- age from overheating can result.

  • Page 83: Cruising In Other Conditions

    Operation ZMU06020 ZMU05839 To return the outboard motor to the nor- mal running position, press the power trim and tilt switch and slowly tilt the out- board motor down. EMU35391 Cruising in other conditions Cruising in salt water After operating in salt water, flush the cooling water passages with fresh water to prevent them from becoming clogged.

  • Page 84: Maintenance

    Drain the remaining gasoline in the va- a transom saver bar. Consult your Yamaha por separator into a container. Loosen dealer for further details. the drain screw, and then remove the EMU35580 cap.

  • Page 85: Lubrication

    90. Inspect the 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. Grease all grease fittings. For further de- tails, see page 84.

  • Page 86: Cleaning The Outboard Motor

    If necessary, clean hose adapter from the garden hose con- and paint the areas. A touch-up paint is avail- nector. able from your Yamaha dealer. Reinstall the garden hose connector EMU2847C Periodic maintenance onto the fitting on the bottom cowling.

  • Page 87: Replacement Parts

    Maintenance have a Yamaha dealer or other qualified speed (rpm) for many hours mechanic do the work. Operating without sufficient time for en- The procedures involve disassembling gine to warm up and cool down the motor and exposing dangerous parts.

  • Page 88: 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 89 Maintenance Initial Every 20 hours Item Actions hours hours hours months) (1 year) (3 years) (5 years) Engine oil filter (car- Replacement tridge) 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)

  • Page 90: Maintenance Chart 2

    (5 years) Main switch/stop Inspection or replace- switch ment as necessary 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-...

  • Page 91: Greasing

    Maintenance EMU28941 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) F300A, FL300A, F350A, FL350A, F350A1, FL350A1 ZMU05859...

  • Page 92: Cleaning And Adjusting Spark Plug

    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 93 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 94 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) ZMU05932 13. Be sure to fit the 4 positions during in- stallation.

  • Page 95: Inspecting Idling Speed

    3 months, and ev- ery 100 hours or at 1-year intervals there- after. Otherwise the engine will wear quickly. ZMU05930 Consult your Yamaha dealer for replace- ment of the engine oil filter and change of the engine oil. EMU29113 Checking wiring and connectors Check that each connector is engaged se- curely.

  • Page 96: Checking Propeller

    Maintenance EMU29174 Checking propeller EWM01881 WARNING You could be seriously injured if the en- gine accidentally starts when you are near the propeller. Before inspecting, re- moving, or installing the propeller, place the shift control in neutral, turn the main switch to “...

  • Page 97: Installing Propeller

    EWM00800 tion and be lost. WARNING Be sure the outboard motor is securely Apply Yamaha marine grease or a cor- fastened to the transom or a stable rosion resistant grease to the propeller stand. You could be severely injured if shaft.
  • Page 98 ZMU05871 which can cause gear damage. Con- sult a Yamaha dealer for repair of the Put a new gasket on the oil level plug. lower unit seals. When the oil begins to flow out of the oil...

  • Page 99: Inspecting And Replacing Anode(S)

    Tightening torque: 3 Nm (0.3 kgf-m, 2.2 ft-lb) EMU29312 Inspecting and replacing anode(s) Yamaha outboard motors are protected from corrosion by sacrificial anodes. Inspect the external anodes periodically. Remove scales from the surfaces of the anodes. Consult a ZMU05873...

  • Page 100: Connecting The Battery

    Connecting an accessory battery (optional) connections can produce shorting or If connecting an accessory battery, con- arcing and cause an explosion. sult your Yamaha dealer about correct [EWM01910] wiring. It is recommendable to install the EMU35603 fuse to the isolator lead as shown in the Connecting the battery illustration.
  • Page 101 Maintenance Single engine Twin engines ZMU05939 ZMU05941 1. Isolator lead with circuit protection 1. Starboard side engine 2. Red cable 2. Port side engine 3. Black cable 3. Red cable 4. Fuse 4. Black cable 5. Battery for accessories 5. Isolator lead with circuit protection 6.

  • Page 102: Disconnecting The Battery

    Maintenance Triple engines damage to the electrical system. [ECM01940] Disconnect the positive cable(s) and re- move the battery from the boat. Clean, maintain, and store the battery according to the manufacturer’s instruc- tions. ZMU05956 1. Starboard side engine 2. Center engine 3.

  • Page 103: Trouble Recovery

    Q. Has fuel pump malfunctioned? If your outboard motor requires repair, bring A. Have serviced by a Yamaha dealer. it to your Yamaha dealer. If the engine trouble-alert indicator is flash- Q. Are spark plug(s) fouled or of incorrect ing, consult your Yamaha dealer.
  • Page 104 Q. Is fuel contaminated or stale? A. Fill tank with clean, fresh fuel. Q. Is carburetor clogged? A. Have serviced by a Yamaha dealer. Q. Is fuel filter clogged? A. Clean or replace filter. Q. Is fuel joint connection incorrect? A.
  • Page 105 Q. Is fuel system obstructed? Q. Is water pump or thermostat faulty? A. Check for pinched or kinked fuel line or A. Have serviced by a Yamaha dealer. other obstructions in fuel system. Q. Is there excess water in fuel filter cup? Q.

  • Page 106: Temporary Action In Emergency

    When using only one or two en- gines in an emergency, be sure to keep the Q. Is steering pivot loose or damaged? unused engine(s) tilted up and operate the A. Tighten or have serviced by a Yamaha other engine(s) at low speed. dealer. ECM01730...

  • Page 107: Replacing Fuse

    3. Spare fuse (10 A, 15 A, 20 A, 30 A, 60 A) of wire could allow excessive current flow. This could cause electric system damage and a fire hazard. Consult your Yamaha dealer if the new fuse immediately blows again. ZMU05875 1. Fuel feed pump fuse (10 A) 2.

  • Page 108: Power Trim And Tilt Will Not Operate

    If the engine cannot be tilted up or down with the power trim and tilt because of a dis- 1. Water separator-alert indicator charged battery or a failure with the power trim and tilt unit, consult your Yamaha deal- Stop the engine. Remove the top cowling. EMU35612 Disconnect the lead from the holder.
  • Page 109 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 110: Treatment Of Submerged Motor

    EMU33501 Treatment of submerged motor If the outboard motor is submerged, immedi- ately take it to a Yamaha dealer. Otherwise ZMU05895 some corrosion may begin almost immedi- ately. NOTICE: Do not attempt to run the...
  • Page 112 YAMAHA MOTOR CO., LTD. Printed in Japan March 2009–0.1 × 1 ! Printed on recycled paper...

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