HONDA marine BF30D Owner's Manual
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HONDA marine BF30D Owner's Manual

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Owner`s Manual
BF25D
BF30D
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Includes US and Canadian Models
© 2023 Honda Motor Co., Ltd. - All Rights Reserved

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  • Page 1 Owner`s Manual BF25D BF30D • Includes US and Canadian Models © 2023 Honda Motor Co., Ltd. - All Rights Reserved...
  • Page 2 The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Keep this Owner’s Manual handy, so you can refer to it at any time. This Owner’s Manual is considered a permanent part of the outboard motor and should remain with the outboard motor if resold.
  • Page 3 We want to help you get the best scheduled maintenance, keep in mind results from your new outboard motor that your Honda Marine dealer is and to operate it safely. This manual specially trained in servicing Honda contains information on how to do outboard motors.
  • 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 • Safety Messages – preceded by a safety alert symbol and one of three are very important.

  • Page 5: Table Of Contents

    CONTENTS OUTBOARD MOTOR SAFETY ........7 Gearshift/Throttle Control Lever ......25 IMPORTANT SAFETY INFORMATION ....7 Power Trim/Tilt Switch SAFETY LABEL LOCATIONS ......9 (standard or optionally applicable equipment) ...26 Power Tilt Switch (power tlim/tilt only) .....26 CONTROLS AND FEATURES ........13 Manual Relief Valve (power tlim/tilt only) ..27 CONTROL AND FEATURE Common Controls ..........27...
  • Page 6 CONTENTS OTHER FEATURES ..........32 TRANSOM ANGLE ADJUSTMENT ....43 Anodes ..............32 PORTABLE FUEL TANK Overrev Limiter ........... 33 (standard or optionally applicable equipment) ..45 Portable Fuel Tank FUEL HOSE CONNECTIONS .......45 (standard or optionally applicable equipment) ... 33 FUEL PRIMING .............46 Fuel Filler Cap Vent Knob ........
  • Page 7 CONTENTS MANUAL RELIEF VALVE CLEANING AND FLUSHING ........88 (power tlim/tilt only) ........... 64 Cleaning and Flushing ..........88 STORAGE ..............91 SERVICING YOUR OUTBOARD MOTOR ....65 Fuel ..............91 THE IMPORTANCE OF MAINTENANCE ..65 Engine Oil ............93 MAINTENANCE SAFETY ........66 STORAGE PRECAUTIONS ........93 SPARE SWITCH CLIP AND EMERGENCY REMOVAL FROM STORAGE ......94...
  • Page 8 CONTENTS TAKING CARE OF UNEXPECTED TECHNICAL INFORMATION ........108 PROBLEMS ............98 Serial Number Locations ........108 ELECTRIC STARTER WILL NOT OPERATE ..98 Carburetor Modification for High Altitude ENGINE WILL NOT START ........ 99 Operation ............109 HARD STARTING OR STALLS AFTER Battery ..............109 STARTING ............

  • Page 9: Outboard Motor Safety

    INFORMATION • It is the operator’s responsibility to • Always wear a PFD (Personal provide the necessary safeguards to The Honda BF25D and BF30D Flotation Device) while on the protect people and property. outboard motors are designed for use boat.
  • 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 Breathing carbon monoxide can well-ventilated area, with the cause loss of consciousness and may engine stopped.

  • Page 11: Safety Label Locations

    OUTBOARD MOTOR SAFETY SAFETY LABEL LOCATIONS US, Puerto Rico, and US Virgin Islands Types READ OWNER’S MANUAL EMERGENCY ENGINE STARTING [SHGA and LRGA types] The labels shown here contain important safety information. Please read them carefully. These labels are considered permanent parts of your outboard motor.
  • Page 12 OUTBOARD MOTOR SAFETY Canadian Types READ OWNER’S MANUAL READ OWNER’S MANUAL EMERGENCY ENGINE STARTING AT CAUTION [SHGC and LHGC types] These labels and indications warn you of potential hazards that can cause serious injury. Read the labels, indications and safety notes and precautions described in this manual carefully. If a label comes off or becomes hard to read, contact your outboard motor dealer for a replacement.
  • Page 13 OUTBOARD MOTOR SAFETY PORTABLE FUEL TANK (standard or optionally applicable equipment) FUEL CAUTION...
  • Page 14 OUTBOARD MOTOR SAFETY Canadian Types • Be careful not to spill any fuel while refueling. Spilled fuel or fuel vapor may ignite. 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 •...

  • Page 15: Controls And Features

    CONTROLS AND FEATURES CONTROL AND FEATURE IDENTIFICATION CODES Model BF25D BF30D Type SHG□ LRG□ LHG□ LRT□ SHG□ SRT□ LRG□ LRTA LRTC Shaft Length ● ● ● ● ● ● ● ● ● Long Tiller Handle ● ● ● Remote Control ●...

  • Page 16: Component And Control Locations

    CONTROLS AND FEATURES COMPONENT AND CONTROL LOCATIONS SHG and LHG Types (long tiller handle) FUEL HOSE CONNECTOR ENGINE COVER LONG TILLER OIL FILLER CAP HANDLE CLAMP OIL LEVEL SCREW DIPSTICK STERN COOLING SYSTEM BRACKET INDICATOR ANODE TILT LOCK LEVER ENGINE COVER LATCH ANTIVENTILATION PLATE TRANSOM ANGLE...
  • Page 17 CONTROLS AND FEATURES GEARSHIFT LEVER OIL PRESSURE EMERGENCY STOP THROTTLE FRICTION INDICATOR SWITCH CLIP ADJUSTER EMERGENCY STOP SWITCH OVERHEAT INDICATOR THROTTLE GRIP EMERGENCY STOP SWITCH LANYARD IGNITION SWITCH STEERING FRICTION ADJUSTER IGNITION SWITCH KEY...
  • Page 18 CONTROLS AND FEATURES LRG , SRT and LRT Types (remote control) POWER TILT SWITCH ENGINE COVER OIL FILLER CAP (power tlim/tilt only) TILT LOCK LEVER FUEL HOSE CONNECTOR OIL LEVEL DIPSTICK STEERING PLATE ENGINE COVER STERN LATCH BRACKET TILT LEVER (gas assist tilt only) ENGINE OIL ANODE...
  • Page 19 CONTROLS AND FEATURES Remote Control box (standard or optionally applicable equipment) (side-mount type) GEARSHIFT/THROTTLE CONTROL LEVER NEUTRAL RELEASE LEVER POWER TRIM/TILT SWITCH (power tlim/tilt only) OIL PRESSURE INDICATOR BUZZER OVERHEAT INDICATOR (inside of the box) FAST IDLE LEVER IGNITION SWITCH IGNITION SWITCH KEY EMERGENCY STOP SWITCH EMERGENCY STOP SWITCH CLIP...
  • Page 20 CONTROLS AND FEATURES Portable Fuel Tank Tachometer (standard or optionally applicable (standard or optionally applicable equipment) equipment) FUEL GAUGE PORTABLE FUEL TANK VENT KNOB Trim Meter (standard or optionally applicable equipment) FUEL FILLER CAP FUEL HOSE (standard equipment) FUEL HOSE CONNECTOR FUEL PRIMING BULB (female)

  • Page 21: Controls

    CONTROLS AND FEATURES CONTROLS Turning the ignition switch key to the START position operates the starter Long Tiller Handle motor. The key automatically returns Ignition Switch to the ON position when released from the START position. The engine will not start unless the gearshift lever is in the N (neutral) START position (p.

  • Page 22: Emergency Stop Switch Clip And Emergency Stop Switch

    CONTROLS AND FEATURES Emergency Stop Switch Clip and The emergency stop switch clip must Throttle Grip be inserted in the emergency stop Emergency Stop Switch switch in order for the engine to start THROTTLE GRIP and run. The emergency stop switch EMERGENCY STOP SWITCH lanyard must be attached securely to...

  • Page 23: Throttle Friction Adjuster

    CONTROLS AND FEATURES Throttle Friction Adjuster Gearshift Lever Steering Friction Adjuster THROTTLE FRICTION R (reverse) ADJUSTER STEERING FRICTION ADJUSTER N (neutral) (forward) RELEASE GEARSHIFT TO INCREASE TO DECREASE LEVER THROTTLE GRIP FRICTION FRICTION (LOCK) (FREE) The gearshift lever is used to select F The throttle friction adjuster adjusts (forward), N (neutral), or R (reverse) resistance to throttle grip rotation.

  • Page 24: Tilt Lever (Gas Assist Tilt Only)

    CONTROLS AND FEATURES Tilt Lever (gas assist tilt only) TILT (LOCK) TILT LEVER Moving the tilt lever to the TILT position allows the outboard motor to be tilted and moving the tilt lever to the RUN (LOCK) position locks the outboard motor in the desired position.

  • Page 25: Remote Control

    CONTROLS AND FEATURES Remote Control Turning the ignition switch key to the Emergency Stop Switch Clip and START position operates the starter (standard or optionally Emergency Stop Switch motor. The key automatically returns applicable equipment) to the ON position when released from the START position.

  • Page 26: Fast Idle Lever

    CONTROLS AND FEATURES Fast Idle Lever The emergency stop switch clip must be inserted in the emergency stop N (neutral) switch in order for the engine to start and run. The emergency stop switch GEARSHIFT/THROTTLE CONTROL LEVER lanyard must be attached securely to FAST IDLE the operator or to the operator’s PFD (Personal Flotation Device).

  • Page 27: Gearshift/Throttle Control Lever

    CONTROLS AND FEATURES Gearshift/Throttle Control Lever GEARSHIFT/THROTTLE CONTROL LEVER GEARSHIFT/THROTTLE N (neutral) CONTROL LEVER 32° 32° F (forward) R (reverse) ENGINE SPEED ENGINE SPEED NEUTRAL HIGH RELEASE LEVER HIGH The gearshift/throttle control lever automatically locks itself in the N (neutral) position. To move the lever out of the N (neutral) position, you The gearshift/throttle control lever A friction adjuster adjusts the...

  • Page 28: Power Trim/Tilt Switch (Standard Or Optionally Applicable Equipment)

    CONTROLS AND FEATURES Power Trim/Tilt Switch The power trim/tilt switch is located Power Tilt Switch on the tiller handle or on the control (standard or optionally applicable (power tlim/tilt only) lever. It is a rocker switch with UP equipment) and DN (down) positions for CONTROL LEVER changing the angle of the outboard Press UP to trim or...

  • Page 29: Manual Relief Valve (Power Tlim/Tilt Only)

    CONTROLS AND FEATURES Manual Relief Valve Common Controls Engine Cover Latches (power tlim/tilt only) Tilt Lock Lever REAR MANUAL RELIEF VALVE POWER FREE (To fix) ENGINE COVER LATCH LOCK MANUAL UNLATCH (To release) TILT LOCK LEVER RIGHT STERN BRACKET FRONT The outboard motor can also be tilted The tilt lock lever is used to support manually after opening the manual...

  • Page 30: Transom Angle Adjusting Rod

    CONTROLS AND FEATURES Transom Angle Adjusting Rod There are four transom angle Trim Tab adjustment positions. Three are The transom angle adjusting rod controlled by the adjusting rod and TRIM TAB BOLT limits the tilt angle of the outboard the fourth is controlled by the stern TRIM TAB motor when fully lowered.

  • Page 31: Instruments

    CONTROLS AND FEATURES INSTRUMENTS Tachometer Fuel Gauge (standard or optionally (standard or optionally applicable equipment) applicable equipment) Trim Meter (standard or optionally FUEL GAUGE applicable equipment) TACHOMETER TRIM METER The tachometer shows engine speed A fuel gauge is built into the fuel tank in revolutions per minute.

  • Page 32: Indicators

    CONTROLS AND FEATURES INDICATORS Remote Control When the green light is lit, oil pressure is OK. (standard or optionally applicable Oil Pressure Indicator equipment) If oil pressure becomes low, the green light will go off, and the engine Long Tiller Handle protection system will limit engine speed.

  • Page 33: Overheat Indicator

    CONTROLS AND FEATURES Overheat Indicator If the engine overheats, the red light Cooling System Indicator will come on, and the engine Long Tiller Handle protection system will limit engine speed. When normal engine temperature is restored, the engine speed will (RED) gradually rise to normal engine speed.

  • Page 34: Other Features

    CONTROLS AND FEATURES The cooling system indicator OTHER FEATURES The anodes are made of a sacrificial discharge port can also become material that helps to protect the plugged. outboard motor from corrosion. Anodes There are two anodes, one on the left stern bracket, and another on the trim tab.

  • Page 35: Overrev Limiter

    CONTROLS AND FEATURES Overrev Limiter Portable Fuel Tank Fuel Filler Cap Vent Knob (standard or optionally VENT KNOB The engine is equipped with an OPEN applicable equipment) overrev limiter to prevent the possibility of mechanical damage from excessive engine speed. CLOSE The overrev limiter may be activated during operation, limiting engine...

  • Page 36: Fuel Priming Bulb

    CONTROLS AND FEATURES Fuel Priming Bulb OUTLET END (outboard motor side) FUEL PRIMING BULB INLET END (fuel tank side) A priming bulb is built into the fuel hose that connects the fuel tank to the outboard motor. Before starting the engine, hold the priming bulb up in the direction of the arrow, then squeeze the priming bulb until it feels firm.

  • Page 37: Installation

    REQUIREMENTS performance. Follow the installation (0 – 50 mm) below the bottom of the instructions provided in this manual. Honda BF25D and BF30D outboard boat. motors can be installed on a boat The correct dimensions differ transom having a thickness range of...

  • Page 38: Attachment

    INSTALLATION The water level must be at least 4 in (Types with clamp screws) ATTACHMENT (100 mm) above the antiventilation If the outboard motor is installed too (tiller handle type) plate, otherwise the water pump may low, the boat will squat and be hard to CARRYING HANDLE not receive sufficient cooling water, plane, and the outboard motor will...

  • Page 39: Transom Angle Adjustment

    INSTALLATION TRANSOM ANGLE ADJUSTMENT LOCK NUT WASHER Use the transom angle adjusting rod (p. 43) to adjust the angle of the outboard motor so the propeller is MOUNTING WASHERS perpendicular to the surface of the BOLTS water. LOCK WASHER TRANSOM MOUNTING HOLES BOARD You may further secure the outboard...

  • Page 40: Electrical Connections

    INSTALLATION ELECTRICAL CONNECTIONS Charging System Honda BF25D and BF30D outboard motors produce a 12-volt, 10-ampere battery-charging current and are equipped for connection to a 12-volt battery. The battery-charging circuit is protected by a 15-ampere fuse located in the engine compartment.
  • Page 41 INSTALLATION Battery Battery Connections (–) BATTERY TERMINAL • Be careful to avoid connecting the For complete information, refer to the battery in reverse polarity, as this (+) BATTERY TERMINAL battery manufacturer’s instructions. will damage the battery-charging system in the outboard motor. Minimum Requirements •...

  • Page 42: Before Operation

    BEFORE OPERATION ARE YOU READY TO GET Safety UNDERWAY? Always wear a PFD (Personal Failure to properly maintain this Flotation Device) while on the boat. Your safety is your responsibility. A outboard motor, or failing to little time spent in preparation will correct a problem before Attach the emergency stop switch significantly reduce your risk of...
  • Page 43 BEFORE OPERATION Safety Inspection • Check that all fasteners are in place • Check that the stern bracket anode and securely tightened. and the trim tab are securely • Before each use, look around and attached and are not excessively •...

  • Page 44: Operation

    OPERATION SAFE OPERATING BREAK-IN PROCEDURE PRECAUTIONS Break-in period: 10 hours Exhaust contains poisonous To safely realize the full potential of carbon monoxide gas that can Proper break-in operation allows the this outboard motor, you need a build up to dangerous levels in moving parts to wear in smoothly for complete understanding of its closed areas.

  • Page 45: Transom Angle Adjustment

    OPERATION Next 60 minutes: TRANSOM ANGLE The transom angle adjusting rod Run the engine up to a maximum of limits the tilt angle of the outboard ADJUSTMENT 4,000 to 5,000 rpm, which is about motor when fully lowered. 50% to 80% of maximum throttle Proper adjustment prevents the opening.
  • Page 46 OPERATION Outboard Motor Angle Inspection (Cruising) Do not allow water to enter the idle exhaust port or the engine can be damaged. INCORRECT INCORRECT CAUSES BOAT TO ‘‘SQUAT’’ CAUSES BOAT TO ‘‘BOW STEER’’ O.K. CORRECT GIVES MAXIMUM PERFORMANCE Install the outboard motor at the best The trim angle differs according to trim angle for stable cruising and the combination of the boat, outboard...

  • Page 47: Portable Fuel Tank

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

  • Page 48: Fuel Priming

    OPERATION Connect the fuel hose to the tank and FUEL PRIMING INFREQUENT OR the outboard motor, as shown. Be OCCASIONAL USE If you are using a portable fuel tank, sure both connectors snap securely turn the portable fuel tank vent knob into place.

  • Page 49: Starting The Engine

    OPERATION STARTING THE ENGINE The engine will not start or run unless N (neutral) the emergency stop switch clip is in Long Tiller Handle the emergency stop switch. EMERGENCY STOP SWITCH The emergency stop switch clip and emergency stop switch lanyard system is a safety device that will stop the engine if you fall away from the controls while operating the boat.
  • Page 50 OPERATION 4. Turn the ignition switch key to the 5. Before getting underway, allow the START START position and hold it there engine to warm-up sufficiently to POSITION until the engine starts. ensure good performance. When the engine starts, release the Above 41°F (5°C), warm-up the key, allowing it to return to the ON POINTER...

  • Page 51: Remote Control

    OPERATION During the warm-up period, check Remote Control 1. Put the emergency stop switch clip the oil pressure indicator (p. 30), in the emergency stop switch, and For panel-mount or top-mount remote overheat indicator (p. 31) and attach the emergency stop switch control information, refer to the cooling system indicator (p.
  • Page 52 OPERATION N (neutral) FAST IDLE ON START START CONTROL LEVER IGNITION SWITCH KEY FAST IDLE LEVER 2. Set the control lever in the N 3. To start a cold engine, leave the fast 4. Turn the ignition switch key to the idle lever in the START (fully START position and hold it there (neutral) position.
  • Page 53 OPERATION FAST IDLE LEVER • Using the electric starter for more • If the engine is not properly than 5 seconds at a time will warmed up before raising the overheat the starter motor and can engine speed, the buzzer and damage it.

  • Page 54: Emergency Starting

    OPERATION EMERGENCY STARTING 3. Set the controls the same as for 6 × 22 mm BOLTS normal starting (see pages 47 – 51). If the battery is discharged or the Use the fast idle control if needed. starter motor is inoperative, you can Turn the ignition switch key to the start the engine manually using the ON position.
  • Page 55 OPERATION KNOT FLYWHEEL Exposed moving parts can cause Direction injury. to pull EMERGENCY • Do not operate the outboard STARTER motor without the engine ROPE cover. • Use extreme care when installing the engine cover. EMERGENCY STARTER ROPE 4. Set the knot at the end of the 6.

  • Page 56: Stopping The Engine

    OPERATION 8. If it was necessary to remove the STOPPING THE ENGINE To stop the engine in an emergency, pull the emergency stop switch clip out emergency stop switch lanyard of the emergency stop switch by pulling Emergency Engine Stopping from you to perform the emergency the emergency stop switch lanyard.

  • Page 57: Normal Engine Stopping

    OPERATION Normal Engine Stopping Remote Control Long Tiller Handle (side-mount type) Long Tiller Handle N (neutral) SLOW CONTROL LEVER IGNITION SWITCH KEY THROTTLE GRIP 1. Move the throttle grip to the Remote Control slowest speed and the gearshift lever or control lever to the N N (neutral) (neutral) position.

  • Page 58: Gearshift And Throttle Operation

    OPERATION 2. Turn the ignition switch key to the GEARSHIFT AND To shift gears, turn the throttle grip to OFF position to stop the engine. In the SLOW position; then move the THROTTLE OPERATION the event that the engine does not gearshift lever to select the F stop when the ignition switch key Long Tiller Handle...

  • Page 59: Remote Control (Side-Mount Type)

    OPERATION Remote Control To shift gears, move the control lever THROTTLE FRICTION ADJUSTER to select the F (forward), N (neutral), (side-mount type) or R (reverse) gear. THROTTLE CONTROL LEVER GRIP The control lever cannot be moved from the N (neutral) position unless the neutral release lever is squeezed.

  • Page 60: Steering

    OPERATION STEERING Steering Friction Adjuster CONTROL LEVER FRICTION ADJUSTER Long Tiller Handle STEERING FRICTION ADJUSTER RIGHT TURN LEFT TURN FRICTION PLATE TO DECREASE FRICTION TO INCREASE FRICTION TO INCREASE TO DECREASE Move the tiller Move the tiller FRICTION FRICTION handle to the left. handle to the right.

  • Page 61: Remote Control

    OPERATION Use the steering friction adjuster to CRUISING If engine speed becomes unstable at help hold a steady course while high speed due to activation of the Engine Speed cruising. overrev limiter, reduce speed and check the trim angle of the outboard For best fuel economy, limit the Move the adjuster to the LOCK motor.
  • Page 62 OPERATION antiventilation plate is level with the It is necessary to trim the angle of the SRT and LRT Types water surface. outboard motor to compensate for POWER TRIM/TILT SWITCH changes in boat load, weight When cruising into a high wind, trim distribution, water conditions, or the outboard motor down slightly to propeller selection.

  • Page 63: Trim Tab

    OPERATION TRIM TAB BOW TOO LOW DUE TO OUTBOARD OUTBOARD 1. LOAD IN THE FRONT MOTOR MOTOR 2. OUTBOARD MOTOR TRIMMED If steering effort is not equal in both TRIMMED TRIMMED TOO LOW TOO LOW TOO HIGH directions, adjust the trim tab to compensate for ‘‘torque steer,’’...

  • Page 64: Shallow Water Operation

    OPERATION SHALLOW WATER SHG , LRG and LHG Types ENGINE COVER GRIP OPERATION When operating in shallow water, tilt the outboard motor, using the tilt SRT and LRT Types lever, so the propeller and gear case won’t hit the bottom. When operating in shallow water, use the power trim/tilt switch (p.

  • Page 65: Mooring, Beaching, Launching

    OPERATION While the outboard motor is tilted, MOORING, BEACHING , until the lever contacts the stern proceed at a low speed, and do not bracket. LAUNCHING operate the outboard motor in Before tilting up, leave the outboard If more clearance is needed to swing reverse.

  • Page 66: Manual Relief Valve (Power Tlim/Tilt Only)

    OPERATION MANUAL RELIEF VALVE Be sure the valve is closed before operating the outboard motor. If the (power tlim/tilt only) valve is not closed, the outboard LOCK MANUAL RELIEF VALVE motor will tilt up when operated in FREE reverse. POWER (To fix) Check that nobody is under the outboard motor before opening the...

  • Page 67: Servicing Your Outboard Motor

    THE IMPORTANCE OF To help you properly care for your Remember that your authorized outboard motor, the following pages Honda Marine dealer knows your MAINTENANCE include a maintenance schedule, outboard motor best and is fully Proper maintenance is essential for routine inspection procedures, and equipped to maintain and repair it.

  • Page 68: Maintenance Safety

    SERVICING YOUR OUTBOARD MOTOR MAINTENANCE SAFETY Safety Precautions • Read the instructions before you begin, and make sure you have the • Make sure the engine is off before Some of the most important safety tools and skills required. you begin any maintenance or precautions follow.

  • Page 69: Spare Switch Clip And Emergency Starter Rope

    TOOL BAG Individual items in the tool kit shown above can be purchased from an authorized Honda Marine dealer and may be used for simple maintenance EMERGENCY STARTER ROPE procedures and/or emergency repairs. Keep this tool kit or an equivalent Always carry the spare switch clip onboard, so that they will always be available if you need them.

  • Page 70: Maintenance Schedule

    SERVICING YOUR OUTBOARD MOTOR MAINTENANCE SCHEDULE Follow the MAINTENANCE SCHEDULE table and service your outboard motor accordingly. Please note, a claim for warranty coverage will not be denied simply because the maintenance schedule for your outboard motor was not followed. However, any part(s) that fails specifically due to lack of maintenance, or improperly performed maintenance, would not be covered under the Distributor’s Limited Warranty (U.S.) / Distributor’s Warranty (CA.).
  • Page 71 SERVICING YOUR OUTBOARD MOTOR REGULAR SERVICE PERIOD (3) First month Every 6 months Every year Every 2 years Perform at every indicated month or operating Each use After use hour interval, whichever comes first. 20 hrs. 100 hrs. 200 hrs. 400 hrs.

  • Page 72: Trim Tab Adjustment

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

  • Page 73: Manual Relief Valve (Power Tlim/Tilt Only)

    SERVICING YOUR OUTBOARD MOTOR MANUAL RELIEF VALVE For manual tilting, use a flat blade (FRONT) screwdriver to turn the valve (power tlim/tilt only) ENGINE COVER counterclockwise 2 and a half turns. Close the valve firmly after MANUAL RELIEF VALVE positioning the engine. POWER Be sure the valve is closed before (To fix)

  • Page 74: Engine Oil Level Check

    SERVICING YOUR OUTBOARD MOTOR Engine Oil Level Check OIL FILLER CAP • Running the engine with a low Check the engine oil level with the oil level can cause engine engine stopped and the outboard damage. motor in the vertical position. •...

  • Page 75: Engine Oil Change

    SERVICING YOUR OUTBOARD MOTOR When you check the oil level with the dipstick, you might notice the engine oil Engine Oil Change appears milky or the oil level has increased. If you notice either condition, An engine oil evacuation device may change the engine oil.
  • Page 76 SERVICING YOUR OUTBOARD MOTOR DRAIN BOLT TIGHTENING DRAIN BOLT SEALING WASHER TORQUE: (Replace) HOLE 17 lbf·ft (23 N·m , 2.3 kgf·m) Improper disposal of engine oil can be harmful to the environment. If you change your own oil, please dispose of the used oil properly. Put it in a sealed container, and take it to a recycling center.

  • Page 77: Engine Oil Recommendations

    SERVICING YOUR OUTBOARD MOTOR 4. With the outboard motor in a Engine Oil Recommendations Honda recommends that you use API vertical position, fill to the upper service category SG , SH or SJ oil. limit mark on the oil level dipstick Oil is a major factor affecting The SAE oil viscosity and service (p.

  • Page 78: Lubrication Points

    MOUNT FRAME To prevent corrosion, apply anticorrosion oil to pivot surfaces where grease cannot penetrate. PROPELLER SHAFT 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 79: Spark Plug Service

    SERVICING YOUR OUTBOARD MOTOR Spark Plug Service SIDE ELECTRODE New plug Plug needing RECOMMENDED SPARK replacement 0.024 – 0.028 in PLUGS: (0.6 – 0.7 mm) DR7EA (NGK) X22ESR-U (DENSO) Incorrect spark plugs can cause SEALING WASHER engine damage. INSULATOR 4. Inspect the spark plugs. Replace 5.
  • Page 80 SERVICING YOUR OUTBOARD MOTOR 7. After each spark plug seats, tighten with a spark plug wrench to compress the sealing washer. If reinstalling used spark plugs, tighten 1/8 – 1/4 turn after the spark plugs seat. SPARK PLUG If installing new spark plugs, tighten 1/2 turn after the spark plugs seat.

  • Page 81: Refueling

    Wait to relieve through at least one complete tank of VENT KNOB pressure. fuel within a 30 day period, we OPEN recommend adding Honda Marine FUEL FILLER CAP Fuel Stabilizer each time you refuel. Portable Fuel Tank (standard or optionally applicable equipment) PRESS 2.
  • Page 82 SERVICING YOUR OUTBOARD MOTOR Using the fuel tank mounted in SAFE FILL LEVEL the boat. Gasoline is highly flammable and Check the fuel level and refill if explosive. necessary. Do not fill the fuel tank above the UPPER LIMIT. Refer to You can be burned or seriously the boat manufacturer’s instructions.

  • Page 83: Fuel Recommendations

    SERVICING YOUR OUTBOARD MOTOR FUEL RECOMMENDATIONS If your outboard motor will be used on an infrequent or intermittent basis, This engine is certified to operate on please refer to the fuel section of the unleaded gasoline with a pump STORAGE chapter (p. 91) for octane rating of 86 or higher.

  • Page 84: Fuel Filter Inspection And Replacement

    SERVICING YOUR OUTBOARD MOTOR Fuel Filter Inspection and Replacement Gasoline is highly flammable and The fuel filter is located under the explosive. engine cover between the fuel You can be burned or seriously coupling and the fuel pump. injured when handling fuel. PULL PUSH Water or sediment accumulation in...
  • Page 85 SERVICING YOUR OUTBOARD MOTOR HOSE CLAMPS FUEL FILTER FUEL HOSES HOSE CLIPS (commercially available) FUEL FILTER FUEL HOSE 3. Raise the fuel filter, and take the 5. Place commercially available hose 6. Remove the fuel filter from the fuel clips on the fuel hoses on each side filter out of the engine under case hoses.

  • Page 86: Portable Fuel Tank And Tank Filter Cleaning (Standard Or Optionally Applicable Equipment)

    SERVICING YOUR OUTBOARD MOTOR 9. Securely connect the fuel hose Portable Fuel Tank and Tank HOSE CLAMPS FUEL PUMP connector to the outboard motor Filter Cleaning (p. 45). (standard or optionally applicable equipment) 10. Prime the engine using the priming bulb (p. 46). Check for fuel leaks.

  • Page 87: Anode Replacement

    SERVICING YOUR OUTBOARD MOTOR Fuel Tank Fuel Tank Filter Anode Replacement CONNECTOR 5 mm SCREWS (4) FUEL HOSE GASKET (Standard equipment) FUEL TANK FILTER JOINT ANODE FUEL TANK (trim tab) (Fuel Hose Connector) FILTER Empty the portable fuel tank into an 1.

  • Page 88: Propeller Replacement

    SERVICING YOUR OUTBOARD MOTOR There are two anodes. One anode is Propeller Replacement Installation located on the left stern bracket and Before replacing the propeller, 1. Apply marine grade grease to the the other anode is on the trim tab. remove the emergency stop switch propeller shaft.
  • Page 89 Note that these wrenches are not included with the tool set that comes with the outboard motor. Contact your authorized Honda Marine dealer for additional tool information. MARINE GREASE PLAIN WASHER CASTLE NUT COTTER PIN...

  • Page 90: Cleaning And Flushing

    CLEANING AND FLUSHING Cleaning and Flushing 1. Tilt down the outboard motor. Do not apply water or corrosion After each use in salt water or dirty inhibitor directly to the timing belt water, thoroughly clean and rinse the under the engine cover. If water or outboard motor with fresh water.
  • Page 91 CLEANING AND FLUSHING 7. Turn on the fresh water supply to GARDEN HOSE ADAPTER WATER INTAKES the flush kit coupler. (FLUSH KIT COUPLER) Running the engine without good water circulation can cause overheating and water pump damage. Damage caused by running the outboard motor without sufficient cooling water is not covered by the Distributor’s Limited Warranty (U.S.) /...
  • Page 92 CLEANING AND FLUSHING 9. Allow the engine to run at idle for Flushing Without the Honda at least 5 minutes to clean the Garden Hose Adapter Running the engine without good inside of the outboard motor. water circulation can cause It is necessary to run the engine overheating and water pump 10.

  • Page 93: Storage

    Please when you filled the fuel tank. 1. Add Honda Marine fuel stabilizer check with your servicing dealer for You can extend fuel storage life by following the instructions on the local storage recommendations.
  • Page 94 STORAGE Draining the Fuel System 3. With the outboard motor in a # 1 CARBURETOR DRAIN TUBE vertical position, place an approved You can avoid fuel deterioration DRAIN SCREW gasoline container below the fuel problems by draining the fuel tank drain outlet, and use a funnel to and carburetors.

  • Page 95: Engine Oil

    STORAGE 6. Repeat this procedure to drain # 3 Engine Oil STORAGE PRECAUTIONS carburetor. 1. Change the engine oil (p. 73). Select a well-ventilated storage area. 7. After all three carburetors are If possible, avoid storage areas with 2. Remove the spark plugs (p. 77), drained, reinstall the drain tube on high humidity.

  • Page 96: Removal From Storage

    STORAGE If the outboard motor will be removed from the boat for storage, Any other horizontal storage position we recommend storing it vertically by may cause damage to the outboard mounting it on a commercially motor or oil leakage. available stand. Cover the outboard motor to keep out dust.

  • Page 97: Transporting

    TRANSPORTING WITH OUTBOARD MOTOR Remote Control All Types INSTALLED ON BOAT Use an outboard motor support bar to The preferred method is to leave the prevent the outboard motor from engine in the normal running When trailering a boat with the moving while trailering the boat.

  • Page 98: With Outboard Motor Removed From Boat

    TRANSPORTING WITH OUTBOARD MOTOR To carry, hold the outboard motor by the carrying handle, or hold by the REMOVED FROM BOAT carrying handle and the lug beneath Secure the outboard motor in either the engine cover latch, as shown. the vertical or horizontal position shown on p.
  • Page 99 TRANSPORTING ENGINE COVER HOIST HOOK LIFTING When transporting the outboard 2. Secure the outboard motor with the 3. Reinstall the engine cover. motor on a vehicle, perform the bolts, nuts and washers. When trailing or transporting the following. boat with the outboard motor 1.

  • Page 100: Problems

    TAKING CARE OF UNEXPECTED PROBLEMS ELECTRIC STARTER WILL NOT OPERATE Possible Cause Correction Battery connections loose or corroded. Clean and tighten battery connections. Battery discharged. Recharge battery. Fuse burnt out. Replace fuse (p. 103). Starter malfunction, switch malfunction, or electrical Use emergency starting procedure (p.

  • Page 101: Engine Will Not Start

    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. 47 or 49). Throttle grip not in START position Turn throttle grip to START position (p.
  • Page 102 TAKING CARE OF UNEXPECTED PROBLEMS ENGINE WILL NOT START Possible Cause Correction Out of fuel. Refuel (p. 79). Fuel vent closed (portable fuel tank). Open the vent knob (p. 33). Fuel hose not primed. Squeeze priming bulb (p. 46). Fuel filter or fuel tank filter clogged. Replace fuel filters (p.

  • Page 103: 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. 47). (long tiller handle type). Fast idle lever raised (remote control/side-mount type). Lower fast idle lever, unless engine is warm (p. 50). Fuel vent closed (portable fuel tank).

  • Page 104: Engine Overheats

    TAKING CARE OF UNEXPECTED PROBLEMS HARD STARTING OR STALLS AFTER STARTING Possible Cause Correction Spark plugs faulty, fouled, or improperly gapped. Gap or replace spark plugs (p. 77). Carburetor malfunction, fuel pump failure, ignition Take outboard motor to an authorized Marine dealer, or malfunction, etc.

  • Page 105: Battery Will Not Charge And Electric Starter Will Not Operate

    TAKING CARE OF UNEXPECTED PROBLEMS BATTERY WILL NOT 3. Remove and inspect the fuse. If a 10A FUSE FUSE COVER fuse is burnt out, install a CHARGE AND ELECTRIC replacement fuse of the specified STARTER WILL NOT rating. The outboard motor is OPERATE supplied with a spare fuse in each fuse holder.

  • Page 106: Oil Pressure Indicator Goes Off And Engine Speed Is Limited

    TAKING CARE OF UNEXPECTED PROBLEMS OIL PRESSURE INDICATOR If oil pressure becomes low, the green If low oil pressure activates the indicator will go off, and the engine engine protection system, stop the GOES OFF AND ENGINE protection system will limit engine engine, check the engine oil level SPEED IS LIMITED speed.

  • Page 107: Overheat Indicator Comes On And Engine Speed Is Limited

    TAKING CARE OF UNEXPECTED PROBLEMS OVERHEAT INDICATOR If the engine overheats, the red indicator will come on, and the COMES ON AND ENGINE engine protection system will limit SPEED IS LIMITED engine speed. If you are at cruising Long Tiller Handle speed, engine speed will decrease gradually.

  • Page 108: Submerged Outboard Motor

    If there is a Honda Marine dealership for half an hour. indicator again. nearby, take the outboard motor to the dealer immediately. If you are far...
  • Page 109 TAKING CARE OF UNEXPECTED PROBLEMS If the engine was running when it 7. Attempt to start the engine. submerged, there may be If the engine fails to start, remove mechanical damage, such as bent the spark plugs, dry them, then connecting rods.

  • Page 110: Technical Information

    TECHNICAL INFORMATION Serial Number Locations STARTER MOTOR 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 111: Carburetor Modification For High Altitude Operation

    3,000 feet authorized Marine dealer return the (900 meters) or above, consult with carburetor to original factory your authorized Honda Marine specifications. dealer. Your dealer can determine the appropriate carburetor settings for the altitude at which you operate your outboard motor.

  • Page 112: Emission Control System Information

    TECHNICAL INFORMATION Emission Control System The U.S., California Clean Air Tampering and Altering Information Acts, and Canadian Environmental Protection Act Source of Emissions Tampering is a violation of Federal and California law. EPA, California, and Canadian The combustion process produces regulations require all manufacturers Tampering with or altering the carbon monoxide, oxides of nitrogen,...
  • Page 113 TECHNICAL INFORMATION Problems That May Affect Replacement Parts A manufacturer of an aftermarket part assumes the responsibility that the Emissions The emission control systems on your part will not adversely affect Honda engine were designed, built, If you are aware of any of the emission performance.

  • Page 114: Star Label

    TECHNICAL INFORMATION Star Label The Star Label means Cleaner Marine Engine US, Puerto Rico, and US Virgin This engine has been certified as a: Islands A Star label was applied to this outboard motor in accordance with the requirements of the California Air Resources Board.
  • Page 115 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 conventional carbureted two-stroke engines. These engines are equivalent to Emission the U.S.

  • Page 116: Specifications

    TECHNICAL INFORMATION Specifications MODEL BF25D CARB star label ULTRA LOW EMISSION Description code BATJ D.C. output 12V – 10A Type Cooling system Water cooling with thermostat Overall length 28.3 in (720 mm) Exhaust system Water exhaust Overall width 14.8 in (375 mm) Spark plugs DR7EA (NGK) X22ESR-U (DENSO)
  • Page 117 TECHNICAL INFORMATION Specifications CARB star label ULTRA LOW EMISSION MODEL BF25D D.C. output 12V – 10A Description code BATJ Cooling system Water cooling with thermostat Type Exhaust system Water exhaust Overall length 25.2 in (640 mm) Spark plugs DR7EA (NGK) Overall width 14.8 in (375 mm) X22ESR-U (DENSO)
  • Page 118 TECHNICAL INFORMATION Specifications MODEL BF30D CARB star label ULTRA LOW EMISSION Description code BAUJ D.C. output 12V – 10A Type Cooling system Water cooling with thermostat Overall length 28.3 in (720 mm) Exhaust system Water exhaust Overall width 14.8 in (375 mm)
  • Page 119 TECHNICAL INFORMATION Specifications MODEL BF30D CARB star label ULTRA LOW EMISSION Description code BAUJ D.C. output 12V – 10A Cooling system Water cooling with thermostat Type Exhaust system Water exhaust Overall length 25.2 in (640 mm) Spark plugs DR7EA (NGK) Overall width 14.8 in (375 mm)

  • Page 120: Consumer Information

    Shop manuals are available through Find a Dealer (optional equipment, oils, and your Honda Marine dealer or visit lubricants) to enhance your boating For Canada: http://marine.honda.com /Service & experience. Call 1-888-946-6329 or visit our...

  • Page 121: Customer Service Information

    CONSUMER INFORMATION Customer Service Information If you need to contact Honda • Your name, address and telephone regarding your experiences with your number (complete with area code) Contacting Honda Honda product or with your dealer, • Model and complete serial number please contact the Honda office in Your Owner’s Manual was written to •...
  • Page 122 CONSUMER INFORMATION To obtain warranty service you must Warranty Service Sometimes, in spite of the best take your Honda outboard motor, intentions of all concerned, a Please remember that recommended misunderstanding may occur. If you together with proof of original retail maintenance interval servicing is not aren’t satisfied with your dealer’s purchase date, at your expense, to a...

  • Page 123: 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. United States, Puerto Rico and U.S.
  • Page 124 However, if you should require further assistance, write or part that is proven to be defective in material or call the Honda Marine Customer Relations Department of workmanship under normal use during the applicable American Honda Motor Co., Inc. Please see Contacting warranty time period.
  • Page 125 CONSUMER INFORMATION Exclusions: • Reimbursement for towing charges, in and out of water This warranty does not extend to the following: charges, or technician travel time • Conditions caused by lack of routine maintenance or • Growth of marine organisms on motor surfaces, improper storage (as outlined in the Owner’s Manual) external or internal •...
  • Page 126 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 127 Honda Marine authorized service facility or dealer in the United States, Puerto Rico, or the U.S. Virgin Islands, during normal business hours.

  • Page 128: Emission Control System Warranty

    CONSUMER INFORMATION Your emission control system may include parts such as Emission Control System Warranty the carburetor or fuel injection system, the ignition Your new Honda outboard engine complies with both the system, catalytic converter, canisters, clamps, filters, fuel U.S. EPA and State of California emission regulations. caps, fuel lines, fuel tanks, valves, and vapor hoses.
  • Page 129 § 2441(a)(13)* or their equivalent. If any emission-related You are responsible for presenting your outboard engine to a Honda Marine dealer as soon as a problem exists. The part on your engine is defective under warranty, the part warranty repairs will be completed in a reasonable amount will be repaired or replaced by American Honda Motor of time, not to exceed 30 days.
  • Page 130 American Honda Motor Co., Inc. is also liable for authorized Honda Marine dealer determines it causes the damages to other engine components caused by a failure failure of a warranted part, your warranty claim may be of any warranted part during the warranty period.
  • Page 131 American Honda Motor Co., neglect, improper maintenance, misuse, misfueling, Inc. to sell and service that Honda marine product during improper storage, and/or collision, the incorporation of, or its normal business hours. Claims for repair or adjustment...
  • Page 132 CONSUMER INFORMATION EMISSION CONTROL SYSTEM WARRANTY PARTS: SYSTEMS COVERED PARTS DESCRIPTION: LENGTH OF WARRANTY: BY THIS WARRANTY: Portable fuel tank, Outboard internal fuel tank, Fuel cap, Fuel hoses, Primer Two years, no limit on hours of bulb, Fuel hose joint, Vapor separator, and Carbon canister, use;...

  • Page 133: Distributor's Warranty

    If any defects c) Any marine product on which required maintenance should be found in a Honda Marine product within the services have been performed as prescribed in the relevant warranty period, necessary repairs and Owner’s Manual.
  • Page 134 Honda Marine dealership. If you are unable to obtain or e) Normal maintenance services, including tightening of are dissatisfied with the warranty service you receive, first nuts, bolts and fittings and engine tune-up and the contact the owner of the dealership involved;...
  • Page 135 New genuine Honda replacement parts or accessories sold transportation or towing costs or any other indirect, to a consumer or installed by an authorized Honda Marine incidental or consequential damage, inconvenience or dealer which are not covered by the DISTRIBUTORS commercial loss.

  • Page 136: Index

    INDEX Anodes ................32 Dealer Locator Information ........118 Replacement ..............85 Distributor’s Limited Warranty ........121 ARE YOU READY TO GET UNDERWAY? ....40 Distributor’s Warranty ..........131 ATTACHMENT ............36 ELECTRIC STARTER WILL NOT OPERATE ... 98 Battery .................109 ELECTRICAL CONNECTIONS ......... 38 BATTERY WILL NOT CHARGE AND EMERGENCY STARTING ..........
  • Page 137 INDEX Fast Idle Lever ...............24 Ignition Switch ............19, 23 Fuel IMPORTANT SAFETY INFORMATION ..... 7 Filler Cap Vent Knob ..........33 INDICATORS ............... 30 Filter Inspection and Replacement ......82 INFREQUENT OR OCCASIONAL USE ....46 Gauge INSTALLATION ............35 (standard or optionally applicable equipment) ..29 INSTRUMENTS ............
  • Page 138 INDEX Oil Pressure Indicator ............30 Serial Number Locations ..........108 OIL PRESSURE INDICATOR GOES OFF AND SERVICING YOUR OUTBOARD MOTOR ....65 ENGINE SPEED IS LIMITED .......104 SHALLOW WATER OPERATIONS ......62 OPERATION ..............42 SPARE SWITCH CLIP AND OTHER FEATURES .............32 EMERGENCY STARTER ROPE ......
  • Page 139 INDEX Tachometer Warranty Statements ........... 121 (standard or optionally applicable equipment) ..29 TAKING CARE OF UNEXPECTED PROBLEMS ..98 TECHNICAL INFORMATION ........108 THE IMPORTANCE OF MAINTENANCE ....65 Throttle Friction Adjuster ..........21 Throttle Grip ..............20 Tilt Lever (gas assist tilt only) ........22 Tilt Lock Lever ..............27 TOOL KIT ..............67 Transom Angle Adjusting Rod ........28...
  • Page 140 MEMO...
  • Page 141 MEMO...
  • Page 142 MEMO...
  • Page 143 0000.00AA.AA 31ZW2648 00X31-ZW2-6480 Printed in Japan...

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