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Honda Outboard Motor BF20 User Manual

Honda Outboard Motor BF20
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Honda Outboard Motor BF20 Specifications

General IconGeneral
Engine Type4-Stroke
Full Throttle RPM Range5000 - 6000 RPM
Cooling SystemWater Cooled
Fuel DeliveryCarburetor
LubricationWet Sump
Oil Capacity1.1 L
Fuel Tank Capacity12 L
Gear Ratio2.08:1
Power TiltOptional
Max Output20 HP
FuelUnleaded Gasoline (86 octane)
Shaft Length20 in (508 mm)
Displacement350 cc (21.4 cubic inches)
Ignition SystemDigital CDI
Starting SystemManual or Electric
ExhaustThrough propeller hub
Propeller3-Blade

Summary

Safety Instructions

General Safety Guidelines

Understand controls, proper mounting, avoid unsafe operation, and handle fuel carefully.

Installation

Pre-Operation Check

Engine Oil Level Check

Procedures for checking and filling engine oil, including viscosity recommendations.

Starting the Engine

Initial Startup Steps

Preparing fuel valve and throttle for starting the engine.

Choke and Starter Rope Operation

How to use the choke and pull the starter rope correctly.

Water Flow Verification

Ensuring proper water circulation from the check hole after starting.

Operation

Cruising and Throttle Control

Adjusting throttle for speed and balancing the boat for optimal performance.

Stopping the Engine

Engine Shutdown Sequence

Steps to safely stop the engine using throttle, stop button, and fuel valve.

Maintenance

Maintenance Schedule Overview

Schedule of periodic inspections and service intervals for motor upkeep.

Engine Oil Change Procedure

Step-by-step instructions for draining and refilling engine oil.

Transporting and Storage

Troubleshooting

Engine Failure to Start

Common issues and checks for an engine that will not start.

Extension Case Overheating

Steps to diagnose and resolve overheating of the extension case, checking water intake.

Warranty Service

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