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Honda Marine BF40A User Manual

Honda Marine BF40A
120 pages
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2001
© HONDA MOTOR CO., LTD. 2000
31ZW4604
00X31-ZW4-6040
CC 30.2002.06
PRINTED IN U.S.A
EM3
BF40A/50A
Owners
Manual

Table of Contents

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Honda Marine BF40A Specifications

General IconGeneral
HP Rating40 HP
Starting SystemElectric
LubricationWet Sump
SteeringRemote
Displacement808 cc
Full Throttle RPM Range5, 000-6, 000 RPM
Cooling SystemWater Cooled
ExhaustThrough Propeller
Recommended FuelUnleaded Gasoline (86 Octane)
Alternator12 Amp
Trim MethodPower trim and tilt
Fuel Tank CapacityOptional

Summary

INTRODUCTION

A FEW WORDS ABOUT SAFETY

Discusses the importance of safety and types of safety information provided.

TYPES OF HONDA BF40A/50A OUTBOARD MOTORS

IDENTIFICATION NUMBERS

OUTBOARD MOTOR SAFETY

IMPORTANT SAFETY INFORMATION

General safety advice for operating the outboard motor.

Operator Responsibility

Outlines the operator's duties and responsibilities for safe operation.

Refuel With Care

Provides instructions and precautions for refueling the outboard motor.

Carbon Monoxide Hazard

Warns about the dangers of carbon monoxide from exhaust.

SAFETY LABEL LOCATIONS

Shows where safety labels are located on the motor.

COMPONENT IDENTIFICATION

TILLER HANDLE TYPE

Identifies components of the tiller handle type outboard motor.

REMOTE CONTROL TYPE

Identifies components of the remote control type outboard motor.

CONTROLS (TILLER HANDLE TYPE)

Engine Start Button

Explains how to use the engine start button.

Shift Lever

Describes the gearshift lever positions (Forward, Neutral, Reverse).

Choke Knob

Explains how to use the choke knob for cold starts.

Throttle Grip

How to adjust engine speed using the throttle grip.

Throttle Opening Indicator

Shows how the indicator relates to throttle opening.

Throttle Friction Knob

How to set and release throttle grip for steady speed.

Engine Stop Switch

How to stop the engine using the stop switch.

Emergency Stop Switch Lanyard

How to use the lanyard for emergency stops.

Oil Pressure Indicator Light

Explains the function of the oil pressure indicator light.

Overheat Indicator Light

Explains the function of the overheat indicator light.

CONTROLS (REMOTE CONTROL TYPE)

Remote Control Lever

Controls gear selection and throttle opening.

Neutral Release Lever

Prevents accidental gear engagement.

Ignition Switch

Explains the functions of the ignition switch positions.

Emergency Stop Switch Lanyard

How to use the emergency stop switch and lanyard.

Choke/Fast Idle Lever

Provides electric choke and engine fast idle functions.

Manual Choke Knob

Used for starting when the battery is discharged.

Oil Pressure Indicator Light/Buzzer

Explains the oil pressure warning system.

Overheat Indicator Light/Buzzer

Explains the overheat warning system.

CONTROLS (POWER TRIM/TILT TYPE)

Power Trim/Tilt Switch

Adjusts motor trim and tilt angles.

Power Trim

Adjusts motor trim angle for boat trim and performance.

Power Tilt

Adjusts motor tilt angle for shallow water, beaching, etc.

Power Tilt Switch (motor pan)

Convenience switch for tilting during trailering/maintenance.

Trim Meter

Indicates motor trim angle for performance.

Tachometer

Shows approximate engine speed in RPM.

Manual Relief Valve

Used for manual tilting if power tilt fails.

Tilt Lock Lever

Holds the motor in the highest tilt position when moored.

Trim Tab

Adjusts for torque steer and functions as an anode.

Power Tilt Switch (Motor Pan)

Convenience switch for tilting during maintenance.

Manual Relief Valve

Manual tilting procedure if power tilt fails.

Tilt Lock Lever

How to use the tilt lock lever when the boat is moored.

CONTROLS (COMMON)

Tilt Lever (GAS ASSISTED TYPE)

Allows tilting the motor to FREE or LOCK positions.

Anode Metal

Sacrificial material to protect motor from corrosion.

Cooling System Indicator

Monitors cooling water circulation.

Water Intakes

Where engine cooling water is drawn in.

Transom Angle Adjusting Rod

Adjusts motor angle for correct boat trim.

Fuel Cap/Gauge/Vent Knob

Controls air entry/exit for the fuel tank.

Over-Rev Limiter

Limits maximum engine RPM to prevent damage.

PRE-OPERATION CHECKS

Engine Cover Removal/Installation

Instructions for removing and installing the engine cover.

Engine Oil

Importance of engine oil for performance and service life.

Fuel Level

How to check and refill the fuel tank.

Fuel Recommendations

Specifies recommended unleaded gasoline types.

Oxygenated Fuels

Information on using fuels with ethanol or MTBE.

Propeller and Cotter Pin

How to check and handle propeller and cotter pin.

Steering Friction Adjustment

Adjusting steering friction for smooth operation.

Remote Control Friction Adjustment

Adjusting friction for remote control lever.

Other Checks

Includes checks for fuel hose, stern bracket, tool kit, and anodes.

STARTING THE ENGINE

Fuel Tank and Vent Knob

Securing the fuel tank and operating the vent knob.

Fuel Line Connection

How to connect the fuel hose to the motor and tank.

STARTING THE ENGINE (TILLER HANDLE TYPE)

Step-by-step guide for starting the tiller handle type.

Emergency Engine Stop

How to stop the engine using the emergency switch.

Normal Engine Stop

How to stop the engine normally.

Throttle Grip

Aligning start symbol and turning grip for speed.

Choke Knob

How to use the choke knob when starting.

Start Button

How to use the start button.

Cooling System Indicator

Verifying water flow after starting.

Oil Pressure Indicator Light

Checking the oil pressure indicator light.

STARTING THE ENGINE (REMOTE CONTROL TYPE)

Step-by-step guide for starting the remote control type.

Emergency Engine Stop

Engaging the emergency stop switch and lanyard.

Neutral Position

Moving the control lever to the neutral position.

Choke/Fast Idle Lever

Using the lever for cold start and fast idle.

Ignition Key

Turning the ignition key to start the engine.

STARTING THE ENGINE (EMERGENCY STARTING)

Procedure for starting the engine in an emergency.

Engine Cover Removal

Instructions for removing the engine cover for emergency starting.

Flywheel Cover Removal

Instructions for removing the flywheel cover.

Neutral Position

Moving the shift or control lever to neutral.

Emergency Stop Switch

Engaging the emergency stop switch.

Choke Knob

Using the manual choke knob.

Throttle Grip / Choke/Fast Idle Lever

Aligning symbols and lifting the lever.

Emergency Starter Rope

How to use the emergency starter rope.

Troubleshooting Starting Problems

Lists causes and remedies for engine not starting.

OPERATION

Break-in Procedure

Instructions for the initial break-in period of the motor.

OPERATION (TILLER HANDLE TYPE)

Operating instructions specific to the tiller handle type.

Gear Shifting

How to shift gears using the tiller handle.

Steering

How to steer the boat using the tiller handle.

Cruising

Adjusting trim for cruising conditions.

Throttle Grip

How to increase speed using the throttle grip.

Throttle Friction Knob

Setting and releasing the throttle for steady speed.

OPERATION (REMOTE CONTROL TYPE)

Operating instructions specific to the remote control type.

Gear Shifting

How to shift gears using the remote control.

Cruising

Adjusting trim for cruising conditions with remote control.

OPERATION (GAS ASSISTED TILT TYPE)

Operating instructions specific to gas assisted tilt type.

Tilt Lever

How to tilt the motor up or down.

Tilt Lock Lever

How to lock the motor in position for mooing.

OPERATION (POWER TRIM/TILT TYPE)

Operating instructions specific to power trim/tilt type.

Power Trim/Tilt Switch

Adjusting motor angle for trim and tilt.

Power Trim

Adjusting motor trim angle for boat performance.

Power Tilt

Adjusting motor tilt angle for shallow water, beaching, etc.

Trim Meter

Indicates the trim angle of the motor.

Power Tilt Switch (Motor Pan)

Convenience switch for tilting during maintenance.

Manual Relief Valve

Manual tilting procedure if power tilt fails.

Tilt Lock Lever

How to use the tilt lock lever when the boat is moored.

Trim Tab Adjustment

Adjusting the trim tab for torque steer.

OPERATION (MOTOR PROTECTION SYSTEM)

Information on motor protection systems and warnings.

Engine Oil Pressure and Overheat Warning System

Explains warning systems for oil pressure and overheating.

Cooling System Indicator

What to do when the overheat warning system is activated.

Over-Rev Limiter

How the over-rev limiter works and what to do if activated.

Power Trim Warning System

How the power trim warning system operates.

Anodes

Function and maintenance of anodes for corrosion protection.

Shallow Water Operation

How to operate the motor in shallow water.

High Altitude Operation

Performance considerations at high altitudes.

STOPPING THE ENGINE (TILLER HANDLE TYPE)

Emergency Engine Stop

How to stop the engine using the emergency switch.

Normal Engine Stop

How to stop the engine normally.

STOPPING THE ENGINE (REMOTE CONTROL TYPE)

Emergency Engine Stop

How to stop the engine using the emergency switch.

Normal Engine Stop

How to stop the engine normally.

TRANSPORTING

Trailering

Recommendations for trailering the boat with the motor attached.

Horizontal Transport

Procedures for transporting the motor horizontally.

CLEANING AND FLUSHING

Wash Plug (flush plug)

How to clean and flush the motor.

Flush Kit (optional part)

Instructions for using the flush kit coupler.

MAINTENANCE

The Importance of Maintenance

Why regular maintenance is essential.

Maintenance Safety

General safety precautions for maintenance.

Safety Precautions

Key safety rules before performing maintenance.

Emission Control System Information

Information on emissions and their sources.

The U.S. and California Clean Air Acts

Regulations regarding emission control systems.

Tampering and Altering

What constitutes tampering with emission systems.

Problems That May Affect Emissions

Symptoms indicating emission control issues.

Replacement Parts

Recommendations for using genuine Honda parts.

Maintenance

Following the maintenance schedule for optimal use.

Star Label

Explanation of the star label for cleaner marine engines.

Tool Kit and Spare Parts

List of tools and spare parts supplied with the motor.

Maintenance Schedule

Schedule for regular maintenance tasks.

Engine Oil

Oil check and change intervals, capacity, and recommended oil.

Gear Oil

Oil check and change intervals, capacity, and recommended oil.

Spark Plugs

Spark plug check, adjustment, and replacement intervals.

Battery (not included)

Minimum requirements and installation for the battery.

Lubrication

Lubrication intervals and points for applying grease.

Engine Fuel Filter

Fuel filter check and change intervals.

Fuel Tank and Filter

Fuel tank and filter cleaning interval and inspection.

Fuel Tank Cleaning

Procedure for cleaning the fuel tank.

Fuel Tank Filter

Fuel tank filter cleaning and replacement.

Fuse Replacement

How to replace a blown fuse.

Propeller

How to replace a damaged propeller.

Submerged Motor

Procedure for servicing a motor that has been submerged.

STORAGE/WINTERIZATION

Draining the Carburetors

Procedure for draining carburetors before storage.

Fuel Tank

Steps for preparing the fuel tank for storage.

Outboard Motor Position

Recommended positions for transport and storage.

TROUBLESHOOTING

(1) Engine does not start.

Lists causes and remedies for engine not starting.

SPECIFICATIONS

BF40A&BF50A Tuneup

Lists tuneup specifications for both models.

WARRANTY SERVICE

Warranty Service Information

Information on obtaining warranty service and contacting customer relations.

WIRING DIAGRAM

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