Honda BF40D Owner's Manual
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Honda BF40D Owner's Manual

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Includes US and Canadian Models

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Summary of Contents for Honda BF40D

  • Page 1 Includes US and Canadian Models...
  • Page 2 The information and specifications included in this publication were in effect at the time of approval for printing. Honda Motor Co., Ltd. reserves the right, however, to discontinue or change specifications or design at any time without notice and without incurring any obligation whatever.
  • Page 3 INTRODUCTION Congratulations on your selection of We suggest you read the warranty a Honda outboard motor. We are policy to fully understand its certain you will be pleased with your coverage and your responsibilities of purchase of one of the finest ownership.
  • Page 4 INTRODUCTION A FEW WORDS ABOUT You will find important safety information in a variety of forms, including: SAFETY Safety Labels on the outboard motor. Your safety and the safety of others are very important. And using this Safety Messages preceded by a safety alert symbol and one of outboard motor safely is an important three signal words, DANGER, WARNING, or CAUTION.

  • Page 5: Table Of Contents

    CONTENTS OUTBOARD MOTOR SAFETY ........Gearshift/Throttle Control Lever ......26 IMPORTANT SAFETY INFORMATION ....Fast Idle Lever ............27 SAFETY LABEL LOCATIONS ........ LHT, LRT and XRT Types (power trim/tilt) Power Trim/Tilt Switch ......... 28 CONTROLS AND FEATURES ........
  • Page 6 CONTENTS INDICATORS ............33 OPERATION ..............42 Alternator (ACG) Indicator ........33 SAFE OPERATING PRECAUTIONS ..... 42 Malfunction Indicator ..........33 BREAK-IN PROCEDURE ........42 Oil Pressure Indicator ..........34 TRANSOM ANGLE ADJUSTMENT (LH Type) . 43 Overheat Indicator ..........
  • Page 7 CONTENTS CRUISING ..............61 Fuel Filter/Water Separator Inspection and TRIM TAB ..............63 Service ..............83 SHALLOW WATER OPERATION ......63 Portable Fuel Tank and Tank Filter Cleaning MOORING, BEACHING, LAUNCHING ....65 [standard equipment (Canadian types)], [optional equipment (American types)] ..
  • Page 8 Electric Starter Will Not Operate ......104 CONSUMER INFORMATION ........120 Battery Will Not Charge ........104 Honda publications ..........120 Fuse Replacment ..........105 Customer Service Information ........ . 120 OIL PRESSURE INDICATOR GOES OFF AND Warranty Statements ..........

  • Page 9: Outboard Motor Safety

    It is the operator’s responsibility to provide the necessary safeguards Always wear a PFD (Personal The Honda BF40D/BF50D outboard motors are designed for use with to protect people and property. Flotation Device) while on the...
  • Page 10 OUTBOARD MOTOR SAFETY Refuel With Care Carbon Monoxide Hazard Gasoline is extremely flammable, Exhaust contains poisonous carbon and gasoline vapor can explode. monoxide, a colorless, odorless gas. Refuel outdoors, in a well- Breathing carbon monoxide can ventilated area, with the engine cause loss of consciousness and may stopped.

  • Page 11: Safety Label Locations

    The label shown here contains important safety information. Please read it carefully. This label is considered a permanent part of your outboard motor. If the label comes off or becomes hard to read, contact an authorized Honda Marine dealer for a replacement.
  • Page 12 The label shown here contains important safety information. Please read it carefully. This label is considered a permanent part of your outboard motor. If the label comes off or becomes hard to read, contact an authorized Honda Marine dealer for a replacement.
  • Page 13 OUTBOARD MOTOR SAFETY PORTABLE FUEL TANK [standard equipment (Canadian types)] [optional equipment (American types)] FUEL CAUTION...
  • Page 14 If any fuel is spilled, Gasoline is harmful or fatal make sure that the area is if swallowed. Keep the fuel dry before starting the Honda outboard motor is tank out of reach of engine. designed to give safe and children.

  • Page 15: Controls And Features

    CONTROLS AND FEATURES CONTROL AND FEATURE IDENTIFICATION CODES Model BF40D BF50D Type LRTA LRTC LHTC LRTA LRTC XRTA Shaft Length Tiller Handle Remote Control Gas Assist Tilt Power Trim/Tilt Tachometer Trim Meter Optional equipment Refer to this chart for an explanation of the Type Codes used in this manual to identify control and feature applications.

  • Page 16: Component And Control Locations

    CONTROLS AND FEATURES COMPONENT AND CONTROL LOCATIONS LH and LHT Types ENGINE OIL POWER TRIM/ (tiller handle) SPARK PLUG FILLER CAP TILT SWITCH (inside the cover) (LHT type only) ENGINE COVER ENGINE COVER LATCH (front) ENGINE COVER LATCH (rear) OIL LEVEL TILLER DIPSTICK POWER TILT...
  • Page 17 CONTROLS AND FEATURES INDICATORS (Oil pressure, Overheat, Alternator, Malfunction) EMERGENCY STOP SWITCH GEARSHIFT LEVER THROTTLE FRICTION ADJUSTER EMERGENCY STOP SWITCH LANYARD THROTTLE GRIP EMERGENCY STOP POWER TRIM/TILT SWITCH SWITCH CLIP (LHT type only) IGNITION SWITCH STEERING FRICTION ADJUSTER IGNITION SWITCH KEY...
  • Page 18 CONTROLS AND FEATURES LRT and XRT Types (remote control) ENGINE OIL SPARK PLUG FILLER CAP (inside the cover) ENGINE COVER ENGINE COVER LATCH (front) ENGINE COVER LATCH (rear) OIL LEVEL DIPSTICK TILT LOCK POWER LEVER TILT FUEL LINE COOLING SWITCH CONNECTOR SYSTEM INDICATOR...
  • Page 19 CONTROLS AND FEATURES Remote Control Box Side-Mount Control Type [standard equipment (LRTC type)] [optional equipment (LRTA and XRTA types)] GEARSHIFT/THROTTLE CONTROL LEVER NEUTRAL RELEASE LEVER INDICATORS (Oil pressure, Overheat, POWER TRIM/TILT Alternator, Malfunction) SWITCH FAST IDLE LEVER SPARE EMERGENCY STOP SWITCH CLIP IGNITION SWITCH IGNITION SWITCH BUZZER...
  • Page 20 CONTROLS AND FEATURES Portable Fuel Tank [standard equipment (Canadian types)] [optional equipment (American types)] FUEL GAUGE PORTABLE FUEL TANK VENT KNOB FUEL FILLER CAP FUEL HOSE (standard equipment) FUEL HOSE CONNECTOR PRIMING BULB (female)
  • Page 21 CONTROLS AND FEATURES Trim Meter Tachometer Digital Speedometer [standard equipment (Canadian [standard equipment (Canadian [optional equipment (LRT and types)] types)] XRT types)] [optional equipment (LRTA and [optional equipment (LRTA and XRTA types)] XRTA types)] Digital Tachometer [optional equipment (LRT and XRT types)]...

  • Page 22: Controls

    CONTROLS AND FEATURES CONTROLS Emergency Stop Switch Clip and Turning the ignition switch key to the Emergency Stop Switch START position operates the starter LH and LHT Types motor. The key automatically returns EMERGENCY STOP SWITCH (tiller handle) to the ON position when released from the START position.

  • Page 23: Throttle Grip

    CONTROLS AND FEATURES Throttle Grip The emergency stop switch clip must The throttle grip controls engine be inserted in the emergency stop speed. switch in order for the engine to start and run. The emergency stop switch The throttle index mark shows lanyard must be attached securely to throttle position and is helpful for the operator or to the operator’s PFD...

  • Page 24: Throttle Friction Adjuster

    CONTROLS AND FEATURES Throttle Friction Adjuster Gearshif t Lever Steering Friction Adjuster N (neutral) THROTTLE FRICTION STEERING FRICTION ADJUSTER ADJUSTER R (reverse) (forward) RELEASE THROTTLE GRIP GEARSHIFT LEVER The throttle friction adjuster adjusts The gearshift lever is used to select F The steering friction adjuster adjusts resistance to throttle grip rotation.

  • Page 25: Transom Angle Adjusting Rod

    CONTROLS AND FEATURES Transom Angle Adjusting Rod Tilt Lever (LH type) The transom angle adjusting rod (LH type) limits the tilt angle of the outboard STERN BRACKET motor when fully lowered. Proper adjustment prevents the outboard motor from being trimmed too low (p.

  • Page 26: Lrt And Xrt Types

    CONTROLS AND FEATURES LRT and XRT Types Ignition Switch Turning the ignition switch key to the (remote control/side-mount START position operates the starter control type) motor. The key automatically returns [standard equipment (LRTC to the ON position when released START type)] from the START position.

  • Page 27: Emergency Stop Switch Clip And Emergency

    CONTROLS AND FEATURES Emergency Stop Switch Clip and The emergency stop switch clip must Emergency Stop Switch be inserted in the emergency stop switch in order for the engine to start and run. The emergency stop switch EMERGENCY STOP SWITCH lanyard must be attached to the operator’s PFD (Personal Flotation Device) or to the operator securely.

  • Page 28: Gearshift/Throttle Control Lever

    CONTROLS AND FEATURES Gearshif t/Throttle Control N (NEUTRAL) Lever 30° 30° F (FORWARD) R (REVERSE) GEARSHIFT/THROTTLE SHIFT SHIFT CONTROL LEVER MAXIMUM MAXIMUM NEUTRAL GEARSHIFT/THROTTLE RELEASE LEVER CONTROL LEVER The gearshift/throttle control lever Moving the control lever 30° from N A friction adjuster near the base of controls engine speed and selects F (neutral) selects the gear, and further the control lever adjusts the operating...

  • Page 29: Fast Idle Lever

    CONTROLS AND FEATURES Fast Idle Lever N (neutral) MAXIMUM FAST IDLE START (LOWEST POSITION) FAST IDLE LEVER Use the fast idle lever to accelerate The fast idle lever allows you to engine warm-up after starting the increase the idle speed only when the engine.

  • Page 30: Lht, Lrt And Xrt Types (Power Trim/Tilt)

    CONTROLS AND FEATURES LHT, LRT and XRT Types Power Tilt Switch (engine pan) The power trim/tilt switch is located (power trim/tilt) on the control lever. It is a rocker switch with UP and DN (down) Power Trim/Tilt Switch positions for changing the angle of the outboard motor.

  • Page 31: Manual Relief Valve

    CONTROLS AND FEATURES Manual Relief Valve The outboard motor can be tilted manually after opening the manual relief valve. This allows the outboard motor to be tilted up or down when RIGHT STERN BRACKET no battery is connected. Check that nobody is under the outboard motor before opening the manual relief valve.

  • Page 32: Common Controls

    CONTROLS AND FEATURES Common Controls Engine Cover Latches Trim Tab TRIM TAB BOLT Tilt Lock Lever (front) ENGINE TRIM TAB COVER LATCH UNLATCH PROPELLER The tilt lock lever is used to support The trim tab compensates for (rear) the outboard motor in the fully-raised ‘‘torque steer,’’...

  • Page 33: Instruments

    CONTROLS AND FEATURES INSTRUMENTS Tachometer Digital Tachometer [standard equipment (Canadian [optional equipment (LRT and Trim Meter types)] XRT types)] [standard equipment (Canadian [optional equipment (LRTA and types)] XRTA types)] [optional equipment (LRTA and XRTA types)] Digital Tachometer includes the following functions. The tachometer shows engine speed Tachometer The trim meter indicates the relative...

  • Page 34: Digital Speedometer [Optional Equipment (Lrt And Xrt Types)]

    CONTROLS AND FEATURES Digital Speedometer Fuel Gauge [optional equipment (LRT and [standard equipment (Canadian XRT types)] types)] [optional equipment (American types)] FUEL GAUGE Digital Speedometer includes the following functions. Speedometer A fuel gauge is built into the fuel Fuel Level Meter tank connector of the portable fuel Voltmeter tank.

  • Page 35: Indicators

    ACG INDICATOR develops a problem. Have your MALFUNCTION INDICATOR Honda Marine dealer check for burned-out bulbs or other problems. Under normal conditions, the (internal buzzer) following occur when the ignition LRT and XRT Types...

  • Page 36: Oil Pressure Indicator

    CONTROLS AND FEATURES Oil Pressure Indicator When the engine control system When the oil pressure indicator is lit, detects an engine control system oil pressure is OK. LH and LHT Types malfunction, the malfunction indicator turns on and the buzzer If oil pressure becomes low, the sounds at one-second intervals.

  • Page 37: Overheat Indicator

    CONTROLS AND FEATURES Overheat Indicator Cooling System Indicator When the alert triggers, the overheat indicator comes on and the buzzer LH and LHT Types sounds a steady tone as the engine speed is reduced to 1,800 rpm. If the (RED) condition persists for another 20 seconds, the engine shuts off.

  • Page 38: Other Features

    CONTROLS AND FEATURES OTHER FEATURES Portable Fuel Tank The cooling system indicator [standard equipment (Canadian discharge port can also become Overrev Limiter types)] plugged. [optional equipment (American types)] The engine is equipped with an overrev limiter to prevent the possibility of mechanical damage from excessive engine speed.

  • Page 39: Fuel Filler Cap Vent Knob

    CONTROLS AND FEATURES Fuel Filler Cap Vent Knob Fuel Priming Bulb NMEA Interface Coupler NMEA2000 based information on VENT KNOB engine speed, fuel consumption, and various warnings can be read by connecting to the outboard motor with the interface cable (optional OUTLET END equipment).

  • Page 40: Anodes

    CONTROLS AND FEATURES Anodes ANODE ANODE (stern bracket) (each side) The anodes are made of a sacrificial material that helps to protect the outboard motor from corrosion. There are two anodes on the gear case, one on the stern bracket and two small anodes in the water passages of the engine block.

  • Page 41: Before Operation

    Be sure to take care of any problem in the OFF position. Familiarize yourself with all laws you find, or have your authorized and regulations relating to boating Honda Marine dealer correct it, and the use of outboard motors. before you operate the outboard motor.
  • Page 42 BEFORE OPERATION Safety Inspection Check that all fasteners are in Make sure a tool kit and the place and securely tightened. emergency starter rope are Look around the outboard motor onboard (p. ). Replace any for signs of oil or gasoline leaks. Check the emergency stop switch missing items.

  • Page 43: Tiller Handle Height/Angle Adjustment (Lh And Lht Types)

    BEFORE OPERATION Tiller Handle Height/Angle Install the height adjustment block Adjustment (LH and LHT so that the selected angle of the tiller handle is in this position. types) 13.2 in HANDLE ANGLE: 7° (336 mm) HANDLE ANGLE: 21° HANDLE ANGLE: 13° HANDLE ANGLE: 13°...

  • Page 44: Operation

    OPERATION SAFE OPERATING BREAK-IN PROCEDURE Next 60 minutes: PRECAUTIONS Run the engine up to a maximum of Break-in period: 10 hours 4,000 to 5,000 rpm, which is about To safely realize the full potential of 50% to 80% of maximum throttle this outboard motor, you need a Proper break-in operation allows the opening.

  • Page 45: Transom Angle Adjustment (Lh Type)

    OPERATION TRANSOM ANGLE The transom angle adjusting rod ADJUSTMENT (LH Type) limits the tilt angle of the outboard motor when fully lowered. Do not allow water to enter the idle STERN BRACKET exhaust port or the engine can be Proper adjustment prevents the damaged.

  • Page 46: Portable Fuel Tank

    OPERATION PORTABLE FUEL TANK FUEL HOSE CONNECTIONS Secure the portable fuel tank in the [standard equipment (Canadian boat so that it won’t move around types)] and become damaged. Turn the portable fuel tank vent knob [optional equipment (American counterclockwise to the open types)] position.

  • Page 47: Fuel Priming

    OPERATION FUEL PRIMING Connect the fuel hose to the tank and Do not touch the priming bulb with the outboard motor, as shown. Be the engine running or when tilting up sure both connectors snap securely the outboard motor. The vapor If you are using a portable fuel tank, into place.

  • Page 48: Infrequent Or Occasional Use

    OPERATION INFREQUENT OR STARTING THE ENGINE Put the emergency stop switch clip OCCASIONAL USE in the emergency stop switch, and attach the emergency stop switch Control Page If your outboard motor will be used Side-Mount Control Type ... 49 lanyard securely to the operator or on an infrequent or intermittent basis, to the operator’s PFD (Personal...
  • Page 49 OPERATION START POSITION N (neutral) POINTER GEARSHIFT LEVER IGNITION SWITCH KEY THROTTLE GRIP Check the position of the gearshift Align the engine start symbol Turn the ignition switch key to the lever. It must be in the N (neutral) ‘‘ ’’...
  • Page 50 OPERATION If the engine fails to start within 5 Before getting underway, allow seconds, release the key and wait the engine to warm-up sufficiently If the engine is not properly at least 10 seconds before to ensure good performance. operating the starter again. warmed up bef ore raising the engine speed, the buzzer and Above 41°F (5°C), warm-up the...

  • Page 51: Lrt And Xrt Types (Remote Control)

    OPERATION LRT and XRT Types The engine will not start or run (remote control) unless the emergency stop switch clip is in the emergency stop Side-Mount Control Type N (neutral) switch. [standard equipment (LRTC type)] The emergency stop switch clip [optional equipment (LRTA and and emergency stop switch lanyard XRTA types)]...
  • Page 52 OPERATION If the engine fails to start within 5 seconds, release the key and wait at least 10 seconds before START operating the starter again. FAST IDLE RANGE START Using the electric starter f or more (fully lowered) than 5 seconds at a time will overheat the starter motor and can damage it.
  • Page 53 OPERATION During the warm-up period, check the oil pressure indicator (p. If the engine is not properly overheat indicator (p. ), and MAXIMUM FAST IDLE warmed up bef ore raising the cooling system indicator (p. FAST IDLE engine speed, the buzzer and RANGE overheat indicator may activate If the indicators show any...

  • Page 54: Emergency Starting

    OPERATION EMERGENCY STARTING 25 mm BOLTS (rear) If the battery is discharged or the starter motor is inoperative, you can Remove start the engine manually using the Release the band the harness. clamp. emergency starter rope supplied with the outboard motor. CLAMP BRACKET (front)
  • Page 55 OPERATION Set the controls the same as for If necessary, rewind the rope and normal starting (p. pull again. If the engine does not start after several attempts, refer to Direction to pull TAKING CARE OF Turn the ignition switch key to the UNEXPECTED PROBLEMS on p.
  • Page 56 (p. ), and cooling system indicator (p. Have your closest authorized Honda Marine dealer check your Leave the alternator cover off, but electrical system and correct the problem so that you can use the install the engine cover (p.

  • Page 57: Stopping The Engine

    OPERATION STOPPING THE ENGINE LRT and XRT Types To stop the engine in an emergency, (remote control) pull the emergency stop switch clip Emergency Engine Stopping out of the emergency stop switch by EMERGENCY STOP SWITCH pulling the emergency stop switch LH and LHT Types lanyard.

  • Page 58: Normal Engine Stopping

    OPERATION Normal Engine Stopping LRT and XRT Types After cruising at full throttle, cool (remote control) down the engine by idling for a few LH and LHT Types minutes before stopping the engine. (tiller handle) Side-Mount Control Type N (neutral) SLOW CONTROL LEVER...
  • Page 59 OPERATION LH and LHT Types Turn the ignition switch key to the (tiller handle) OFF position to stop the engine. In the event that the engine does not stop when the ignition switch key is turned to the OFF position, pull the emergency stop switch clip out of the emergency stop switch by pulling the emergency...

  • Page 60: Gearshift And Throttle Operation

    OPERATION GEARSHIFT AND To shift gears, turn the throttle grip to THROTTLE FRICTION ADJUSTER THROTTLE OPERATION the SLOW position; then move the gearshift lever to select the F THROTTLE LH and LHT Types (forward), N (neutral), or R (reverse) GRIP (tiller handle) gears.

  • Page 61: Lrt And Xrt Types (Remote Control)

    OPERATION LRT and XRT Types To shift gears, move the control lever (remote control) to select the F (forward), N (neutral), or R (reverse) gear. TO INCREASE CONTROL LEVER The control lever cannot be moved FRICTION from the N (neutral) position unless the neutral release lever is squeezed.

  • Page 62: Steering

    OPERATION STEERING Steering Friction Adjuster LRT and XRT Types (remote control) STEERING FRICTION FRICTION LH and LHT Types ADJUSTER PLATE (tiller handle) Steer the boat in the same manner as an automobile. RIGHT TURN LEFT TURN TO DECREASE FRICTION (FREE) Use the steering friction adjuster to help hold a steady course while Move the tiller...

  • Page 63: Cruising

    OPERATION CRUISING If engine speed becomes unstable at antiventilation plate is level with the high speed due to activation of the water surface. Engine Speed overrev limiter, reduce speed and check the trim angle of the outboard When cruising into a high wind, trim motor.

  • Page 64: Lrt And Xrt Types

    OPERATION LHT Type OUTBOARD OUTBOARD It is necessary to trim the angle of the MOTOR MOTOR outboard motor to compensate for TRIMMED TOO TRIMMED TOO changes in boat load, weight HIGH distribution, water conditions, or propeller selection. Under normal conditions, the boat OUTBOARD MOTOR TRIMMED CORRECTLY will perform best when the...

  • Page 65: Trim Tab

    OPERATION TRIM TAB LH Type Refer to TRIM TAB ADJUSTMENT on p. If steering effort is not equal in both When operating in shallow water, tilt SHALLOW WATER directions, adjust the trim tab to the outboard motor, using the tilt OPERATION compensate for ‘‘torque steer,’’...
  • Page 66 OPERATION While the outboard motor is tilted, To return the outboard motor to the ENGINE COVER GRIP proceed at a low speed, and do not normal operating position, move the operate the outboard motor in reverse. tilt lever to the LOCK (RUN) The outboard motor will rise position.

  • Page 67: Mooring, Beaching, Launching

    OPERATION MOORING, BEACHING, outboard motor until the lever TILT LOCK LEVER LAUNCHING contacts the stern bracket. (lock position) Before tilting up, leave the outboard If more clearance is needed to swing motor in the running position for one the tilt lock lever into the LOCK minute after stopping the engine to position, rock the outboard motor drain the water from inside the...
  • Page 68 OPERATION Check that nobody is under the outboard motor before opening the manual relief valve. If the manual MANUAL RELIEF relief valve is loosened (turned VALVE counterclockwise) when the outboard motor is tilted up, the outboard motor will suddenly tilt down. POWER MANUAL Be sure the valve is closed before...

  • Page 69: Servicing Your Outboard Motor

    Honda special tools are best handled by Genuine parts or their equivalents for professionals and are normally repair and replacement. performed by a Honda technician or Improperly maintaining other qualified mechanic. Maintenance, replacement, or this outboard motor or...

  • Page 70: Maintenance Safety

    SERVICING YOUR OUTBOARD MOTOR MAINTENANCE SAFETY Safety Precautions Read the instructions before you begin, and make sure you have the Some of the most important safety Make sure the engine is off before tools and skills required. precautions follow. However, we you begin any maintenance or cannot warn you of every repairs.

  • Page 71: Spare Switch Clip And Emergency Starter Rope

    SERVICING YOUR OUTBOARD MOTOR SPARE SWITCH CLIP (LH TOOL KIT and OWNER’S MANUAL and LHT Types) AND EMERGENCY STARTER ROPE 12 mm WRENCH PLIERS OIL CHECK SCREWDRIVER 18 19 mm SOCKET WRENCH SPARE SWITCH CLIP PHILLIPS/FLAT (LH and LHT Types) SCREWDRIVER 8 mm WRENCH OWNER’S MANUAL...

  • Page 72: Maintenance Schedule

    These items should be serviced by your servicing dealer, unless you have the proper tools and are mechanically proficient. Refer to the Honda shop manual for service procedures. For professional commercial use, log hours of operation to determine proper maintenance intervals.
  • Page 73 These items should be serviced by your servicing dealer, unless you have the proper tools and are mechanically proficient. Refer to the Honda shop manual for service procedures. For professional commercial use, log hours of operation to determine proper maintenance intervals.

  • Page 74: Trim Tab Adjustment

    SERVICING YOUR OUTBOARD MOTOR TRIM TAB ADJUSTMENT LEFT The trim tab compensates for ‘‘torque steer,’’ which is a reaction of RIGHT the outboard motor to propeller rotation. TRIM TAB TRIM TAB If uncompensated, torque steer would make the outboard motor tend to turn to one side.

  • Page 75: Manual Relief Valve

    SERVICING YOUR OUTBOARD MOTOR MANUAL RELIEF VALVE Check that nobody is under the (rear) outboard motor before opening the LHT, LRT and XRT Types manual relief valve. If the manual relief valve is loosened (turned ENGINE COVER LATCH counterclockwise) when the outboard MANUAL RELIEF VALVE motor is tilted up, the outboard motor...

  • Page 76: Engine Oil Level Check

    SERVICING YOUR OUTBOARD MOTOR Engine Oil Level Check OIL FILLER CAP Check the engine oil level with the Running the engine with a low oil engine stopped and the outboard level can cause engine damage. motor in the vertical position. Install the oil filler cap and tighten Unlatch and remove the engine it securely.

  • Page 77: Engine Oil Change

    SERVICING YOUR OUTBOARD MOTOR Engine Oil Change An engine oil evacuation device may DRAIN BOLT COVER be used to remove the engine oil. Drain the used oil while the engine is warm. Warm oil drains quickly and completely. Unlatch and remove the engine cover (p.
  • Page 78 SERVICING YOUR OUTBOARD MOTOR With the outboard motor in a SEALING WASHER vertical position, fill to the upper Improper disposal of engine oil can limit mark on the dipstick (p. be harmf ul to the environment. If with the recommended oil. you change your own oil, please dispose of the used oil properly.

  • Page 79: Engine Oil Recommendations

    SAE 5W-30 is recommended for Disconnect the spark plug caps general use. from the spark plugs. Honda recommends that you use API Remove the spark plugs with a service category SG, SH or SJ oil. spark plug wrench. The SAE oil viscosity and service category are in the API label on the oil container.
  • Page 80 SERVICING YOUR OUTBOARD MOTOR SIDE ELECTRODE Install the spark plugs carefully, New plug Plug needing by hand, to avoid cross-threading. replacement 0.024 0.028 in (0.6 0.7 mm) After each spark plug seats, tighten with a spark plug wrench to SEALING WASHER compress the sealing washer.

  • Page 81: Lubrication Points

    To prevent corrosion, apply anticorrosion oil to pivot surf aces where grease cannot penetrate. UPPER SWIVEL CASE/ MOUNT FRAME PROPELLER SHAFT LOWER SWIVEL CASE Apply Honda Marine Corrosion Inhibitor (or equivalent) to all areas under the engine cover and any exposed metal surfaces except the belts.

  • Page 82: Refueling

    Wait to relieve fuel within a 30 day period, we VENT KNOB pressure. recommend adding Honda Marine FUEL FILLER CAP Fuel Stabilizer each time you refuel. Portable Fuel Tank [standard equipment (Canadian...
  • Page 83 SERVICING YOUR OUTBOARD MOTOR Using the fuel tank mounted in SAFE FILL LEVEL the boat. Gasoline is highly flammable and explosive. Check the fuel level and refill if necessary. Do not fill the fuel tank You can be burned or above the UPPER LIMIT.

  • Page 84: Fuel Recommendations

    SERVICING YOUR OUTBOARD MOTOR FUEL RECOMMENDATIONS Engine damage or performance problems that result from using a fuel Use unleaded gasoline with a pump with percentages of ethanol or octane rating of 86 or higher. methanol greater than shown above are not covered under warranty. Your outboard motor is certified to operate on unleaded gasoline.

  • Page 85: Fuel Filter/Water Separator Inspection And Service

    SERVICING YOUR OUTBOARD MOTOR Fuel Filter/Water Separator Inspection and Service Gasoline is highly flammable and explosive. The fuel filter is located under the engine cover between the fuel You can be burned or coupling and the fuel pump. seriously injured when handling fuel.
  • Page 86 SERVICING YOUR OUTBOARD MOTOR FUEL FILTER FUEL FILTER BRACKET CLAMP ASSEMBLY FUEL HOSES SUSPENSION STRAP HOSE CLIPS FUEL FUEL FILTER FUEL FILTER (commercially available) HOSES (inside strainer cup) (inside strainer cup) Inspect the filter for water and/or Remove the suspension strap from Disconnect the fuel tubes from the sediment accumulation.
  • Page 87 SERVICING YOUR OUTBOARD MOTOR Align the center of the filter body and the arrow FILTER BODY of the suspension strap rib. O-RING FUEL FILTER FLOAT SUSPENSION (red ring) STRAP STRAINER CUP Unscrew the strainer cup from the Install the fuel filter, float, O-rings Install the suspension strap to the filter body.

  • Page 88: Portable Fuel Tank And Tank Filter Cleaning

    SERVICING YOUR OUTBOARD MOTOR Portable Fuel Tank and Tank Fuel Tank Connect the fuel hoses to the fuel Filter Cleaning filter securely with the hose [standard equipment (Canadian clamps. Remove the fuel hose FUEL HOSE (standard equipment) types)] clips used to close the fuel hoses. [optional equipment (American types)] Securely connect the fuel hose...

  • Page 89: Anode Replacement

    SERVICING YOUR OUTBOARD MOTOR Fuel Tank Filter Anode Replacement CONNECTOR 5 mm SCREWS (4) GASKET ANODE (each side) FUEL TANK FILLER ANODE (stern bracket) FUEL TANK FILTER JOINT (Fuel Hose Connector) The anodes are located on each side Remove the four 5 mm screws of the gear case and on the stern using a flat screwdriver, then bracket.

  • Page 90: Propeller Replacement

    SERVICING YOUR OUTBOARD MOTOR Propeller Replacement Installation Inspect the propeller shaft for any [standard equipment (Canadian fishing line or debris. types)] Apply marine grade grease to the [optional equipment (American propeller shaft. types)] Install the thrust washer with the Before replacing the propeller, grooved side toward the gear case.
  • Page 91 Be sure to replace the cotter pin spline washer and the plain washer. with a new one. Lightly tighten the castle nut by Use a Honda Genuine stainless hand or wrench until the propeller steel cotter pin or equivalent has no free play.

  • Page 92: Cleaning And Flushing

    For Touch up any damaged paint, and belt. If water or corrosion inhibitor safety, remove the propeller from the coat areas that may rust with Honda penetrates these components, they outboard motor (p. Corrosion Inhibitor, or equivalent.
  • Page 93 CLEANING AND FLUSHING Move the gearshift lever or control GARDEN HOSE ADAPTER lever to the N (neutral) position. (FLUSH KIT COUPLER) Flush the outboard motor in the neutral position only. Turn on the fresh water supply to WATER INTAKE the flush kit coupler. Running the engine without good water circulation can cause overheating and water pump damage.
  • Page 94 CLEANING AND FLUSHING Allow the engine to run at idle for at least 5 minutes to clean the inside of the outboard motor. Stop the engine, and disconnect the fuel hose from the outboard motor. Remove the garden hose adapter. Remove the sealing washer from the garden hose adapter and install the sealing washer on the wash...

  • Page 95: Storage

    Gasoline will oxidize and deteriorate can avoid fuel deterioration problems Add Honda Marine fuel stabilizer in storage. Old gasoline will cause by draining all the fuel from the fuel following the instructions on the hard starting, and it leaves gum tank and vapor separator.
  • Page 96 STORAGE Draining the Fuel System Disconnect the fuel hose connector You can avoid fuel deterioration from the outboard motor (p. problems by draining the fuel tank Gasoline is highly flammable and explosive. and vapor separator. Before draining Remove the engine cover (p. and checking the fuel system, check You can be burned or the fuel filter for contamination and/...
  • Page 97 Honda Make sure the gasoline supply is Marine fuel stabilizer following not contaminated. the directions on the container.

  • Page 98: Engine Oil

    STORAGE Engine Oil HOISTING THE OUTBOARD After the outboard motor is placed MOTOR in storage and disconnected from the hoist, install the engine cover. Change the engine oil (p. STORAGE PRECAUTIONS Remove the spark plugs (p. and remove the emergency stop switch clip from the emergency HOIST Select a well-ventilated storage area.

  • Page 99: Removal From Storage

    STORAGE Any other horizontal storage position may cause damage to the outboard motor or oil leakage. Cover the outboard motor to keep out CASE PROTECTOR dust. Do not use plastic sheet as a dust cover. A nonporous cover will trap moisture, promoting rust and corrosion.

  • Page 100: Transporting

    TRANSPORTING WITH OUTBOARD MOTOR LRT and XRT Types (remote WITH OUTBOARD MOTOR INSTALLED ON BOAT control) REMOVED FROM BOAT When trailering a boat with the Use an outboard motor support bar to Secure the outboard motor in either outboard motor attached, always prevent the outboard motor from the vertical or horizontal position disconnect the fuel line from the...

  • Page 101: Taking Care Of Unexpected Problems

    TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction Clip not inserted in emergency stop switch. Insert clip in emergency stop switch. Gearshift lever or control lever not in neutral position. Shift to neutral (p. Throttle grip not in START position (tiller handle type). Turn throttle lever or grip to START position (p.
  • Page 102 TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction Out of fuel. Refuel (p. Fuel vent closed (portable fuel tank). Open fuel filler cap vent (p. Fuel hose not primed. Squeeze priming bulb (p. Fuel filter or fuel tank filter clogged. Replace fuel filters (p.
  • Page 103 46 49 ); if engine still will malfunction, stuck valves, starter malfunction, switch not start, then take outboard motor to an authorized malfunction, or electrical problem in the starting Honda Marine dealer, or refer to the shop manual. circuit, etc.

  • Page 104: Hard Starting Or Stalls After Starting

    TAKING CARE OF UNEXPECTED PROBLEMS HARD STARTING OR STALLS AFTER STARTING Possible Cause Correction Throttle grip not in START position Turn throttle grip to START position (p. (tiller handle type). Fast idle lever raised (remote control/side-mount type). Leave fast idle lever in the START position (p. Fuel vent closed (portable fuel tank).

  • Page 105: Engine Overheats

    Correction Spark plugs faulty, fouled, or improperly gapped. Gap or replace spark plugs (p. Fuel system malfunction, fuel pump failure, ignition Take outboard motor to an authorized Honda Marine malfunction, etc. dealer, or refer to the shop manual. ENGINE OVERHEATS...

  • Page 106: Fuses

    TAKING CARE OF UNEXPECTED PROBLEMS FUSES SPARE FUSES (10 A, 15 A, 30 A) Electric Starter Will Not Operate The 10A, 15A, and 30A fuses protect the electric starter relay and related circuits. FUSES (10 A, 15 A, 30 A) The 10A fuse protects the ignition switch and related circuits.

  • Page 107: Fuse Replacement

    If a fuse is outboard motor to an authorized Remove the fuse case lid. blown, install a replacement fuse Honda Marine dealer for inspection of the same specified rating. The and service, or refer to the shop outboard motor is supplied with manual.

  • Page 108: Oil Pressure Indicator Goes Off And Engine Speed Is Limited

    TAKING CARE OF UNEXPECTED PROBLEMS OIL PRESSURE INDICATOR LRT and XRT Types Digital Tachometer GOES OFF AND ENGINE (remote control) SPEED IS LIMITED (GREEN) LH and LHT Types Normal (tiller handle) Abnormal (GREEN) If oil pressure becomes low, the oil pressure indicator will go off, and the BUZZER engine protection system limits...

  • Page 109: Overheat Indicator Comes On And Engine Speed Is Limited

    30 seconds, and the engine will respond normally to (internal buzzer) throttle control lever operation. If the engine protection system remains activated after 30 seconds, return to the nearest boat landing, and have the outboard motor inspected by an authorized Honda Marine dealer.
  • Page 110 Engine overheating may be the result outboard motor inspected by an of restricted water intake screens, or authorized Honda Marine dealer. there may be a problem with the cooling system thermostat or water pump.

  • Page 111: Submerged Outboard Motor

    If there is a Honda Marine dealership nearby, take the outboard motor to If the engine was running when it the dealer immediately. If you are far...
  • Page 112 Attempt to start the engine. Be As soon as possible, take the sure the water level is at least 2 outboard motor to an authorized Honda Marine dealer for inches (5 cm) above the antiventilation plate. inspection and service. Running the outboard motor without...

  • Page 113: Technical Information

    TECHNICAL INFORMATION Serial Number Locations ENGINE SERIAL NUMBER Record the product identification number, the engine serial number, and the date of purchase in the space provided on this page. You will need these numbers when ordering parts, and when making technical or warranty inquiries (p.

  • Page 114: Battery

    Do not disconnect the battery and lead compounds. Wash your Honda utilizes appropriate air/fuel cables while the engine is running. hands after handling. ratios and other emissions control Disconnecting the cables while the...
  • Page 115 The following instructions and tampering are: procedures must be followed in order to keep the emissions from your Removal or alteration of any part Honda engine within the emission of the intake, fuel, or exhaust standards. systems. Alterations that would cause the engine to operate outside its design parameters.
  • Page 116 Emissions The emission control systems on Follow the maintenance schedule on If you are aware of any of the your Honda engine were designed, . Remember that this schedule following symptoms, have your built, and certified to conform with is based on the assumption that your...

  • Page 117: Star Label

    TECHNICAL INFORMATION Star Label The Star Label means Cleaner Marine Engine US, Puerto Rico, and US Virgin Islands This engine has been certified as a: A Star label was applied to this outboard motor in accordance with the requirements of the California Air Resources Board.
  • Page 118 TECHNICAL INFORMATION The one-star label identifies engines that meet the Air Resources Board’s One Star Personal Watercraft and Outboard marine engine 2001 exhaust emission standards. Engines meeting these standards have 75% lower emissions than Emission conventional carbureted two-stroke engines. These engines are equivalent to the U.S.

  • Page 119: Specifications

    63° (when Transom angle is 12°) Full transistor battery 8°, 12°, 16°, 20°, 24° Ignition system Transom angle Trochoid pump pressure lubrication Lubrication system With propeller Honda outboard motors are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
  • Page 120 Electric starter 8°, 12°, 16°, 20°, 24° Starter system Transom angle Full transistor battery Ignition system Trochoid pump pressure lubrication Lubrication system With propeller Honda outboard motors are power rated in accordance with NMMA procedures and using the ICOMIA standard 28/23.
  • Page 121 TECHNICAL INFORMATION BF40D/BF50D Tune up 0.024 0.028 in (0.6 0.7 mm) See page 78 Spark plug gap 50 rpm See shop manual Idle speed Intake: 0.15 0.02 mm See shop manual Valve clearance Exhaust: 0.23 0.02 mm No other adjustment is needed...

  • Page 122: Consumer Information

    Visit www.honda-marine.com and If you need to contact Honda click on PARTS & ACCESSORIES regarding your experiences with your Shop Manual to see the entire catalog of Honda product or with your dealer,...
  • Page 123 Please include the following It is important to realize that your information in your communication: warranty applies to defects in Your new Honda is covered by the material or workmanship of your Your name, address and telephone following warranties: Honda. Your warranty coverage does...
  • Page 124 (such as spark plug(s), water pump, contact the owner of the dealership or etc.). their designated representative. As the owner of a Honda product, your servicing dealer may ask you to authorize an inspection. If the problem is covered under warranty, your dealer will perform any warranty repairs for you at no cost.

  • Page 125: Warranty Statements

    CONSUMER INFORMATION Warranty Statements The American Honda Distributor’s Limited Warranty applies to outboards purchased in the United States, Puerto Rico, or the U.S. Virgin Islands. The Honda Canada Distributor’s Warranty applies to outboards purchased in Canada. The product warranty is only valid in the country where the product was purchased.
  • Page 126 First, contact the owner of the Warranty: dealership involved; normally this should resolve the American Honda will repair or replace, at its option, any problem. However, if you should require further part that is proven to be defective in material or...
  • Page 127 Parts affected or damaged by an abuse, submersion implied warranties: and/or collision American Honda disclaims any responsibility for loss of Normal wear and tear time or use of the outboard, revenue, or the equipment in Fuel contamination and water entering engine through...
  • Page 128 CONSUMER INFORMATION Accessories and Replacement Parts This warranty is limited to Honda Marine parts, accessories and apparel when distributed by American Honda Motor Co., Inc., 1919 Torrance Blvd., Torrance, California 90501-2746. Products Covered by Warranty: Length of Warranty: (from date of original retail purchase)
  • Page 129 CONSUMER INFORMATION To Obtain Warranty Service: how long an implied warranty lasts and/or do not allow You must, at your expense, take the Honda Outboard the exclusion or limitation of incidental or consequential Motor product accessory or replacement part or the...

  • Page 130: Emission Control System Warranty

    Emission Control System Warranty outboard engine at no cost to you including diagnosis, parts and labor. Your new Honda outboard engine complies with both the U.S. EPA and State of California emission regulations. Your emission control system may include such parts as...
  • Page 131 American has failed due to abuse, neglect, improper maintenance, Honda Motor Co., Inc. A list of warranty parts is on page or unapproved modifications. 131 . Normal maintenance items, such as spark plugs and...
  • Page 132 American Honda Motor Co., alteration of any part. Inc. to sell and service that Honda Marine product during This warranty does not cover replacement of expendable his normal business hours. Claims for repair or...
  • Page 133 CONSUMER INFORMATION EMISSION CONTROL SYSTEM WARRANTY PARTS: SYSTEMS COVERED BY THIS PARTS DESCRIPTION WARRANTY: Fuel Metering Carburetor assembly, Throttle body, Fuel injector, Fuel pump, Fuel pressure regulator, Throttle position sensor, Intake air temperature sensor, Engine temperature sensor, Manifold absolute pressure sensor, Idle air control valve, Barometric pressure sensor, Fuel line solenoid valve, Intake manifold, Intake valves, and Oxygen sensor or Air fuel ratio sensor Evaporative...

  • Page 134: Distributor's Warranty

    Honda Canada Inc. and/or Honda Motor Co. Ltd., as an authorized Honda dealer which has been registered appropriate from the context. at the time of purchase on a form provided by Honda, which has had set-up and pre-delivery service HONDA WARRANTS THAT each new Honda marine...
  • Page 135 Any marine products modified, altered, disassembled expense, during normal service hours, to any authorized or remodelled; Honda Marine dealership. If you are unable to obtain or Normal maintenance services, including tightening of are dissatisfied with the warranty service you receive, nuts, bolts and fittings and engine tune-up and the first contact the owner of the dealership involved;...
  • Page 136 New genuine Honda replacement parts or accessories responsibility for loss of time or use of the product, sold to a consumer or installed by an authorized Honda transportation or towing costs or any other indirect, Marine dealer which are not covered by the...

  • Page 137: Index

    INDEX Alternator (ACG) Indicator ..........33 Distributor’s Limited Warranty ........123 Anodes ................38 Distributor’s Warranty ..........132 Replacement .............. . 87 ARE YOU READY TO GET UNDERWAY? ....39 Electric Starter Will Not Operate ........
  • Page 138 (LRT and XRT Types) ..........26 GEARSHIFT AND THROTTLE OPERATION ..58 NMEA INTERFACE COUPLER ........ . 37 HARD STARTING OR STALLS AFTER STARTING ............. . 102 HOISTING THE OUTBOARD MOTOR ..... 96 Honda Publications ............120...
  • Page 139 INDEX Oil Pressure Indicator ............ . 34 Spark Plug Service ............77 OIL PRESSURE INDICATOR GOES OFF AND Specifications .............. . 117 ENGINE SPEED IS LIMITED ....... 106 Star Label ..............115 OPERATION ..............42 STARTING THE ENGINE ..........
  • Page 140 INDEX Tachometer [standard equipment (Canadian types)], [optional equipment (LRTA and XRTA types)] ..31 TAKING CARE OF UNEXPECTED PROBLEMS . 99 ..TECHNICAL INFORMATION ........111 THE IMPORTANCE OF MAINTENANCE ....67 Throttle Friction Adjuster (LH and LHT Types) ....
  • Page 141 MEMO...
  • Page 142 MEMO...
  • Page 143 US:K2 C:K3 31ZZ4621 N HC 1000.2011.10 00X31-ZZ4-6210 Printed in China...

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