Yamaha F40B Owner's Manual
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Yamaha F40B Owner's Manual

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F30A
F40B
OWNER'S MANUAL
67C-28199-75-E0

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Summary of Contents for Yamaha F40B

  • Page 1 F30A F40B OWNER’S MANUAL 67C-28199-75-E0...
  • Page 2 EMU25050 Read this owner’s manual carefully before operating your outboard motor.
  • Page 3 Therefore some items may not apply to ev- tain maximum enjoyment from your new ery model. Yamaha. If you have any question about the EMU25120 operation or maintenance of your outboard motor, please consult a Yamaha dealer.

  • Page 4: Table Of Contents

    Table of contents General information ......1 Tilt lock mechanism......14 Tilt support knob......15 Identification numbers record..1 Top cowling lock lever(s) (turn Outboard motor serial number ..1 type) ..........15 Key number........1 Flushing device ....... 15 EC label...........
  • Page 5 Table of contents models .......... 32 Removing the propeller ....55 Adjusting boat trim ......32 Installing the propeller ..... 55 Tilting up and down ....... 33 Changing gear oil ......56 Procedure for tilting up (hydro tilt Cleaning fuel tank ......57 models) .........

  • Page 6: General Information

    Record your outboard motor serial number in the spaces provided to assist you in ordering spare parts from your Yamaha dealer or for reference in case your outboard motor is sto- len. 1. Key number...

  • Page 7: Emission Control Information

    Before operating the boat, read any own- er’s or operator’s manuals supplied with it and all labels. Be sure you understand each item before operating. YAMAHA MOTOR CO.,LTD. Do not overpower the boat with this out- Motorfamilie board motor. Overpowering the boat could Abgastypenpruf- result in loss of control.

  • Page 8: Important Labels

    General information boat manufacturer. sure to cancel the Float Plan when you re- Do not modify the outboard. Modifications turn. could make the motor unfit or unsafe to Use common sense and good judgment use. when boating. Know your abilities, and be Never operate after drinking alcohol or tak- sure you understand how your boat han- ing drugs.

  • Page 9: Caution Labels

    General information EMU25401 EMU25472 Label Label EWM01260 ECM01190 WARNING CAUTION: Be sure shift control is in neutral before Transport and store the engine only as starting engine. (except 2HP) shown. Otherwise, engine damage could Do not touch or remove electrical parts result from Leaking oil.

  • Page 10: Gasoline

    General information ter. EMU25580 Gasoline Recommended gasoline: Regular unleaded gasoline with a min- imum octane rating of 90 (Research Octane Number). If knocking or pinging occurs, use a different ZMU01710 brand of gasoline or premium unleaded fuel. EMU25690 EMU25680 Battery requirement Engine oil ECM01060 CAUTION:...

  • Page 11: Propeller Selection

    Install an optional Rectifier Regulator or use accessories rated to withstand 18 volts or higher with the above models. Consult your Yamaha dealer for details on installing an optional Rectifier Regulator. EMU25741 Propeller selection ZMU04604 The performance of your outboard motor will 1.
  • Page 12 General information ZMU01713 1. Start-in-gear protection label...

  • Page 13: Basic Components

    EMU25795 Main components NOTE: * May not be exactly as shown; also may not be included as standard equipment on all mod- els. F30A, F40B ZMU04034 1. Top cowling 15. Fuel tank 2. Top cowling lock lever 16. Remote control box (side mount type)* 3.

  • Page 14: Fuel Joint

    Basic components licensing or approval authority regula- tions. 1. Power trim and tilt switch ZMU03157 2. Remote control lever 3. Neutral interlock trigger 1. Air vent screw 4. Neutral throttle lever 2. Fuel gauge 5. Main switch / choke switch 3.

  • Page 15: Neutral Interlock Trigger

    Basic components 6. Throttle 7. Fully open EMU26201 Neutral interlock trigger To shift out of neutral, first pull the neutral in- terlock trigger up. 1. Fully open 2. Fully closed EMU25911 Tiller handle To change direction, move the tiller handle to the left or right as necessary.

  • Page 16: Throttle Grip

    Basic components ZMU04036 ZMU04103 1. Throttle indicator 1. Forward “ ” 2. Neutral “ ” EMU25970 3. Reverse “ ” Throttle friction adjuster A friction device provides adjustable resis- EMU25941 Throttle grip tance to movement of the throttle grip or the remote control lever, and can be set accord- The throttle grip is on the tiller handle.

  • Page 17: Engine Stop Lanyard Switch

    Basic components NOTE: The engine cannot be started with the lock plate removed. ZMU03169 When constant speed is desired, tighten the adjuster to maintain the desired throttle set- ting. ZMU03353 EMU25990 Engine stop lanyard switch 1. Lock plate 2. Lanyard The lock plate must be attached to the en- gine stop switch for the engine to run.

  • Page 18: Manual Starter Handle

    Basic components gine. When the key is released, it returns automatically to the “ ” (on) position. START ZMU03354 EMU26070 ZMU03590 Manual starter handle To start the engine, first gently pull the han- EMU26141 Power trim and tilt switch on remote dle out until resistance is felt.

  • Page 19: Trim Tab With Anode

    Basic components ing the switch “ ” (up) trims the outboard after the trim tab has been installed or re- motor up, then tilts it up. Pressing the switch placed to be sure steering is correct. Be “ ” (down) tilts the outboard motor down sure you have tightened the bolt after ad- and trims it down.

  • Page 20: Tilt Support Knob

    Basic components ZMU04039 ZMU04041 1. Tilt lock lever 1. Top cowling lock lever(s) To lock it, set the tilt lock lever in the “ ” EMU26460 Flushing device (lock) position. To release, push the tilt lock This device is used to clean the cooling wa- lever in the “...

  • Page 21: Digital Tachometer

    Basic components gine is equipped with the appropriate func- tions. EMU26521 Low oil pressure warning indicator If oil pressure drops too low, the warning in- dicator will start to blink. For further informa- tion, see page 18. ECM00020 CAUTION: ZMU04043 Do not continue to run the engine if the low oil pressure warning indicator is on 1.

  • Page 22: Trim Meter (Digital Type)

    Warning system ECM00090 CAUTION: Do not continue to operate the engine if a warning device has activated. Consult your Yamaha dealer if the problem can- not be located and corrected. EMU26813 ZMU01740 Overheat warning This engine has an overheat warning device.

  • Page 23: Low Oil Pressure Warning

    Basic components crease to about 2000 r/min. The overheat warning indicator will light (if equipped on the bottom cowling or the ta- chometer). EMU30164 Low oil pressure warning If the oil pressure drops too low, the warning ZMU04045 device will activate. Activation of warning device The engine speed will automatically de- crease to about 2000 r/min.
  • Page 24 Check the oil level and add oil as needed. If the oil level is correct and the warning device does not switch off, consult your Yamaha dealer. ECM00100 CAUTION: Do not continue to run the engine if the low oil pressure warning indicator is on.

  • Page 25: Operation

    Operation EMU26901 specific boat and motor combination. Installation EWM00830 ECM00110 WARNING CAUTION: Improper mounting of the outboard mo- Incorrect engine height or obstructions tor could result in hazardous conditions to smooth water flow (such as the design such as poor handling, loss of control, or or condition of the boat, or accessories fire hazards.

  • Page 26: Breaking In Engine

    Con- and repaired before operating the out- sult your Yamaha dealer boat board motor. Otherwise an accident manufacturer for further information on de- could occur.

  • Page 27: Controls

    Operation Check fuel line connections to be sure they are tight (if equipped Yamaha fuel tank or boat tank). Be sure the fuel tank is positioned on a se- cure, flat surface, and that the fuel line is not twisted or flattened, or likely to contact sharp objects (if equipped Yamaha fuel tank or boat tank).

  • Page 28: Operating Engine

    Operation ing the air vent screw. This product emits exhaust gases which contain carbon monoxide, a col- orless, odorless gas which could cause brain damage or death when inhaled. Symptoms include nausea, dizziness, and drowsiness. Keep cockpit and cab- in areas well ventilated. Avoid blocking exhaust outlets.

  • Page 29: Starting Engine

    Operation ZMU04049 ZMU02024 If a steering friction adjuster is provided NOTE: on your outboard motor, securely attach The start-in-gear protection device prevents the fuel line to the fuel line clamp. the engine from starting except when in neu- tral. NOTE: During engine operation place the tank hori- Attach the engine stop switch lanyard to zontally, otherwise fuel cannot be drawn...
  • Page 30 Operation NOTE: When the engine is cold, it needs to be warmed up. For further information, see page 26. If the engine is warm and fails to start, open the throttle slightly and try to start the engine again. If the engine still fails to start, see page 61.

  • Page 31: Warming Up Engine

    Consult Never turn the main switch to “ ” your Yamaha dealer if the cause for the (start) while the engine is running. low oil pressure warning indicator can- Do not keep the starter motor turning not be found.

  • Page 32: Shifting

    Consult your Yamaha dealer if the prob- lem cannot be located and corrected. ZMU04052 Move the gear shift lever quickly and firmly from neutral to forward.

  • Page 33: Reverse (Automatic Reverse Lock And Power Trim And Tilt Models)

    Operation ZMU03406 ZMU03620 EMU27784 Remote control models Reverse (automatic reverse lock and Pull up the neutral interlock trigger (if power trim and tilt models) equipped) and move the remote control EWM00190 lever quickly and firmly from neutral to WARNING reverse. When operating in reverse, go slowly.
  • Page 34 Operation not open the throttle more than half. Oth- erwise the boat could become unstable, which could result in loss of control and an accident. Tiller control models Place the throttle grip in the fully closed position. ZMU03620 Remote control models Check that the tilt lock lever is in the lock position.

  • Page 35: Stopping Engine

    Operation the fuel line if there is a fuel joint on the outboard motor. ZMU03627 EMU27820 ZMU04057 Stopping engine Before stopping the engine, first let it cool off Tighten the air vent screw on the fuel for a few minutes at idle or low speed. Stop- tank cap (if equipped).

  • Page 36: Adjusting Trim Angle

    Operation also affected by variables such as the load in body parts between the drive unit and the boat, sea conditions, and running speed. clamp bracket. EWM00740 Use caution when trying a trim position 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...

  • Page 37: Adjusting Trim Angle For Hydro Tilt

    Operation “ ” (down). hand and tilt the engine to the desired Make test runs with the trim set to different angle. angles to find the position that works best for Place the tilt lock lever back into the lock your boat and operating conditions.

  • Page 38: Tilting Up And Down

    Operation formance further, and the boat may “por- board motor should be tilted up to protect the poise” (hop in the water), which could throw propeller and casing from damage by colli- the operator and passengers overboard. sion with obstructions, and also to reduce salt corrosion.

  • Page 39: Procedure For Tilting Up

    Operation ZMU03087 ZMU04064 Hold the rear of the top cowling with one hand, tilt the engine up, and turn the tilt support lever toward you or tilt support knob into the clamp bracket, and then place the tilt lock lever back into the lock position to support the outboard motor.

  • Page 40: Procedure For Tilting Down (Manual And Hydro Tilt Models)

    Operation Disconnect the fuel line from the out- board motor or close the fuel cock. ZMU04068 EWM00260 ZMU04066 WARNING After tilting the outboard motor, be sure Press the power trim and tilt switch / to support it with the tilt support knob or power tilt switch “...

  • Page 41: Procedure For Tilting Down

    Operation switch “ ” (up) until the outboard motor is supported by the tilt rod and the tilt support lever / tilt support knob becomes free. Release the tilt support lever or pull out the tilt support knob. ZMU04069 Hold the rear of the top cowling with one hand, tilt the outboard motor up slightly and pull out the tilt support knob or re- turn the tilt support lever.

  • Page 42: Cruising In Shallow Water

    Operation EMU28060 EMU28174 Cruising in shallow water Procedure for hydro tilt models Place the gear shift lever in neutral. The outboard motor can be tilted up partially to allow operation in shallow water. EMU28080 Hydro tilt models The outboard motor can be tilted up partially to allow operation in shallow water.

  • Page 43: Power Trim And Tilt Models / Power Tilt Models

    Operation tilt the outboard motor down. Push the tilt lock lever down to the lock position. ZMU03525 Slightly tilt the outboard motor up to the desired position using the power trim / tilt ZMU04076 switch. EMU28090 Power trim and tilt models / power tilt models The outboard motor can be tilted up partially to allow operation in shallow water.
  • Page 44 NOTE: For cooling system flushing instructions, see page 41. Cruising in turbid water Yamaha strongly recommends that you use the optional chromium-plated water pump kit if you use the outboard motor in turbid (mud- dy) water conditions.

  • Page 45: Maintenance

    Maintenance EMU28216 5000–6000 r/min Specifications Maximum output: Dimension: F30AET 22.1 kW@5500 r/min (30 Overall length: HP@5500 r/min) F30AET 700 mm (27.6 in) F30AMHD 22.1 kW@5500 r/min (30 F30AMHD 1332 mm (52.4 in) HP@5500 r/min) F40BED 700 mm (27.6 in) F40BED 29.4 kW@5500 r/min (40 F40BET 700 mm (27.6 in) HP@5500 r/min) F40BMHD 1332 mm (52.4 in)

  • Page 46: Transporting And Storing Outboard Motor

    Maintenance Valve clearance (cold engine) IN: 2.0 L (2.11 US qt) (1.76 Imp.qt) 0.15–0.25 mm (0.0059–0.0098 in) Recommended gear oil: Valve clearance (cold engine) EX: Hypoid gear oil SAE#90 0.25–0.35 mm (0.0098–0.0138 in) Gear oil quantity: Min. cold cranking amps (CCA/EN): 430.0 cm (14.54 US oz) (15.17 430.0 A...

  • Page 47: Storing Outboard Motor

    ZMU04078 sition using a motor support device such as a transom saver bar. Consult your Yamaha dealer for further details. EMU28241 Storing outboard motor...

  • Page 48: Lubrication (Except Oil Injection Models)

    56. Inspect the oil for the pres- when starting or during operation. ence of water that indicates a leaky seal. Keep hands, hair, and clothes away Seal replacement should be performed from the flywheel and other rotating by an authorized Yamaha dealer prior to...

  • Page 49: Battery Care

    Maintenance use. ways apply. Consult your battery Grease all grease fittings. For further de- manufacturer’s instructions. tails, see page 49. Procedure Disconnect and remove the battery from EMU28430 Battery care the boat. Always disconnect the black EWM00330 negative cable first to prevent the risk of WARNING shorting.

  • Page 50: Cleaning The Outboard Motor

    If necessary, clean ECM00540 and paint the areas. A touch-up paint is avail- CAUTION: able from your Yamaha dealer. Do not leave the garden hose connector loose on the bottom cowling fitting or let the hose hang free during normal opera-...

  • Page 51: Periodic Maintenance

    Be sure to turn off the engine when you perform maintenance unless otherwise specified. If you or the owner is not famil- iar with machine servicing, this work should be done by your Yamaha dealer or other qualified mechanic. EMU28510 Replacement parts...

  • Page 52: Maintenance Chart

    Refer to the sections in this chapter for explanations of each owner-specific action. 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 50 hours Item...

  • Page 53: Maintenance Chart (Additional)

    Maintenance Initial Every 50 hours Item Actions 10 hours hours (6 hours (1 (1 month) months) months) year) Cleaning / adjustment / Spark plug(s) replacement Inspection / replace- Timing belt ment Valve clearance (OHC, Inspection / adjustment OHV) NOTE: When operating in salt water, turbid or muddy water, the engine should be flushed with clean water after each use.

  • Page 54: Greasing

    Maintenance EMU28940 Greasing Yamaha grease A (water resistant grease) Yamaha grease D (corrosion resistant grease; for propeller shaft) F30A, F40B ZMU04081 EMU28951 damaged insulator could allow external Cleaning and adjusting spark plug sparks, which could lead to explosion or EWM00560 fire.

  • Page 55: Checking Fuel System

    Improper repairs can make the outboard unsafe to operate. Check the fuel lines for leaks, crack, or mal- function. If a problem is found, your Yamaha dealer or other qualified mechanic should re- 1. Spark plug gap pair it immediately.

  • Page 56: Checking Fuel Filter

    If not warmed up fully, the idle speed will measure higher than normal. If you have difficulty ver- ifying the idle speed, or the idle speed re- quires adjustment, consult a Yamaha dealer ZMU04083...

  • Page 57: Changing Engine Oil

    Maintenance or other qualified mechanic. Verify whether the idle speed is set to specification. For idle speed specifica- tions, see page 40. EMU29073 Changing engine oil EWM00760 WARNING Avoid draining the engine oil immedi- ZMU04084 ately after stopping the engine. The oil Prepare a suitable container that holds a is hot and should be handled with care larger amount than the engine oil capac-...

  • Page 58: Checking Wiring And Connectors

    Con- tinued operation with a problem could cause severe engine damage. Consult your Yamaha dealer if the problem can- not be located and corrected. ZMU04087 Turn off the engine and wait 3 minutes.

  • Page 59: Water Leakage

    Engine oil leakage smoothly. Check for oil leaks on the around the engine. NOTE: NOTE: Consult your Yamaha dealer if any operation If any leaks are found, consult your Yamaha is abnormal. dealer. EMU29171 EMU29161 Checking propeller Checking power trim and tilt system...

  • Page 60: Removing The Propeller

    Maintenance age. NOTE: If the shear pin equipped: it is designed to break if the propeller hits a hard underwater obstacle to help protect the propeller and drive mechanism. The propeller will then spin freely on the shaft. If this happens, the shear pin must be replaced.

  • Page 61: Changing Gear Oil

    Be sure the outboard motor is securely damage. Consult a Yamaha dealer for re- fastened to the transom or a stable pair of the lower unit seals. stand. You could be severely injured if NOTE: For disposal of used oil consult your Yamaha...

  • Page 62: Cleaning Fuel Tank

    EMU29312 If you have any question about properly Inspecting and replacing anode(s) doing this procedure, consult your Yamaha outboard motors are protected from Yamaha dealer. corrosion by sacrificial anodes. Inspect the Keep away from sparks, cigarettes, external anodes periodically. Remove scales flames, or other sources of ignition from the surfaces of the anodes.

  • Page 63: Checking Battery (For Electric Start Models)

    SKIN - Flush with water. anodes on equipped models. Consult a EYES - Flush with water for 15 minutes Yamaha dealer for inspection and replace- and get immediate medical attention. ment of internal anodes attached to the pow- Antidote (INTERNAL): er unit.

  • Page 64: Connecting The Battery

    NOTE: Consult a Yamaha dealer when charging or re-charging batteries. 1. Red cable 2. Black cable...

  • Page 65: Coating The Boat Bottom

    Maintenance ZMU02068 EMU29400 Coating the boat bottom A clean hull improves boat performance. The boat bottom should be kept as clean of ma- rine growth as possible. If necessary, the boat bottom can be coated with an anti-foul- ing paint approved for your area to inhibit marine growth.

  • Page 66: 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 warning indicator is Q. Are spark plug(s) fouled or of incorrect flashing, consult your Yamaha dealer.
  • Page 67 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 68 Trouble Recovery A. Have serviced by a Yamaha dealer. Q. Are weeds or other foreign matter tangled on gear housing? Q. Is load on boat improperly distributed? A. Remove foreign matter and clean lower A. Distribute load to place boat on an even unit.

  • Page 69: Temporary Action In Emergency

    (if equipped). Replace Q. Is steering pivot loose or damaged? it with a spare one of the proper amperage. A. Tighten or have serviced by a Yamaha EWM00630 dealer. WARNING Be sure to use the specified fuse.

  • Page 70: Power Trim And Tilt Will Not Operate

    Trouble Recovery ZMU04094 ZMU04095 1. Fuse box 1. Manual valve screw 2. Fuse (20 A) Put the engine in the desired position, 3. Spare fuse (20 A) 4. Fuse puller then tighten the manual valve screw by turning it counterclockwise. EMU29531 Starter will not operate If the starter mechanism does not operate...

  • Page 71: Emergency Starting Engine

    Trouble Recovery gine power means the loss of most steering control. Also, without engine power, the boat could slow rapidly. This could cause people and objects in the boat to be thrown forward. Be sure no one is standing behind you when pulling the starter rope.

  • Page 72: Treatment Of Submerged Motor

    24. EMU29760 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. If you cannot immediately take the outboard motor to a Yamaha dealer, follow the proce-...
  • Page 74 YAMAHA MOTOR CO., LTD. Printed in Japan April 2004–0.2 × 1 ! Printed on recycled paper...

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