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Honda CM400E 1981 User Manual

Honda CM400E 1981
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Honda CM400E 1981 Specifications

General IconGeneral
Displacement395 cc
Bore x Stroke70.5 x 50.6 mm
Compression Ratio9.3:1
IgnitionCDI
StartingElectric
Transmission5-speed
Final DriveChain
Front SuspensionTelescopic fork
Rear SuspensionDual shocks
Front BrakeSingle disc
Rear BrakeDrum
Front Tire3.60-19
Rear Tire4.10-18
Engine Type4-stroke, parallel twin
Wheelbase1, 410 mm
Seat Height780 mm
Fuel System2 x 30mm Keihin carburetors

Summary

Important Notice

Operator and Passenger Safety

Motorcycle capacity and safe operation guidelines.

On-Road Use Guidelines

Regulations for using the motorcycle on roads.

Manual Readability and Warnings

Explains how to interpret warnings and cautions.

Welcome to Your New Motorcycle

Motorcycle Safety

Safe Riding Rules

Safety practices for motorcycle operation.

Protective Apparel

Recommendations for rider safety gear.

Loading and Accessories

Guidance on carrying cargo and using accessories.

Tires

Tire Pressure and Maintenance

Importance of proper inflation and condition checks.

Accessories

Accessory Guidelines

Rules for selecting and installing non-Honda accessories.

Modifications

Modification Warnings

Dangers and legalities of altering the motorcycle.

Description

Parts Location

Identification of key components on the motorcycle.

Component Identification

Left Side Components

Labels for steering lock, fuel valve, etc.

Right Side Components

Labels for seat latch, foot pegs, brake pedal, etc.

Serial Numbers

VIN and Engine Number Location

Where to find identification numbers.

Parts Function

Instruments and Indicators

Explanation of gauges and warning lights.

Ignition Switch Operation

Key Positions and Functions

Description of ON, OFF, and P modes.

Engine Stop and Starter Buttons

Engine Stop Switch

Function and usage of the engine stop switch.

Starter Button

How to use the starter button.

Controls and Switches

Handlebar Controls

Headlight dimmer, turn signal, horn functions.

Steering and Seat Features

Steering Lock

How to engage and disengage the steering lock.

Helmet Holder

Location and use of the helmet holder.

Seat Removal

Procedure for removing the motorcycle seat.

Document Compartment

Location for owner's manual and documents.

Shock Absorbers and Fuel System

Shock Absorbers Adjustment

How to adjust rear suspension preload.

Fuel Valve Operation

Using the ON, OFF, and RES positions.

Fuel Tank and Engine Oil

Fuel Tank Capacity and Refueling

Information on fuel capacity and safe refueling.

Engine Oil Level Check

Procedure for checking and maintaining engine oil.

Engine Oil Recommendations

Oil Type and Viscosity

Recommended engine oil specifications.

Operation - Pre-Ride Inspection

Daily Inspection Checklist

Items to check before riding the motorcycle.

Starting the Engine

Starting Procedure (Normal Air Temp)

Steps for starting the engine in moderate temperatures.

Starting Procedure (High Air Temp)

Steps for starting in hot conditions.

Starting the Engine - Low Temp and Flooded

Starting Procedure (Low Air Temp)

Steps for starting in cold weather.

Flooded Engine Procedure

How to handle a flooded engine.

Break-In Period

Break-In Maintenance and Guidelines

Recommendations for the initial 600 miles.

Riding

Shifting Pattern and Guidelines

How to shift gears for optimal performance.

Riding - High Altitude and Other Notes

High Altitude Riding Advice

How altitude affects performance.

Braking

Normal and Maximum Deceleration

Techniques for effective braking.

Braking Warnings and Conditions

Precautions for wet or slippery surfaces.

Parking and Anti-Theft Tips

Proper Parking Procedure

Steps for securing the motorcycle when parked.

Anti-Theft Measures

Advice to prevent motorcycle theft.

Special Procedures

Road-Side Repair Guidance

Procedures for common roadside issues.

Tool Kit

Contents of the Tool Kit

List of tools provided for basic maintenance.

Front Wheel Removal and Installation

Front Wheel Removal Procedure

Steps to detach the front wheel.

Front Wheel Installation Notes

Key points for reattaching the front wheel.

Rear Wheel Removal and Installation

Rear Wheel Removal Procedure

Steps to detach the rear wheel.

Rear Wheel Installation Notes

Key points for reattaching the rear wheel.

Fuse Replacement

Fuse Box Location and Fuse Types

Where to find fuses and their ratings.

Fuse Replacement Procedure

How to safely replace a blown fuse.

Maintenance

Maintenance Overview and Schedule

General maintenance information and schedule.

Maintenance Schedule Details

Emission Related Items Maintenance

Maintenance for emission control components.

Non-Emission Related Items Maintenance

Maintenance for other vehicle parts.

Maintenance Record

Recording Service History

How to use the maintenance log.

Engine Oil Service

Engine Oil Change Procedure

Steps for draining and refilling engine oil.

Idle Speed and Air Cleaner Service

Idle Speed Adjustment

How to adjust engine idle speed.

Air Cleaner Element Service

How to clean or replace the air filter.

Crankcase Breather and Clutch

Crankcase Breather Drain

Procedure for draining crankcase deposits.

Clutch Adjustment

How to adjust clutch lever free play.

Brake Adjustment

Front Brake Adjustment

How to adjust front brake lever free play.

Rear Brake Adjustment

How to adjust rear brake pedal free play.

Drive Chain Care

Drive Chain Inspection and Adjustment

Checking slack and adjusting the chain.

Drive Chain Lubrication

How to properly lubricate the drive chain.

Side Stand and Battery Service

Side Stand Inspection

Checking the side stand for wear and damage.

Battery Electrolyte Level

How to check and maintain battery fluid.

Cleaning and Storage

Motorcycle Cleaning Procedure

How to properly wash the motorcycle.

Motorcycle Storage Guidelines

Recommendations for long-term storage.

Emission Control System

Source of Emissions

Explanation of exhaust and crankcase emissions.

Exhaust Emission Control System

How Honda reduces emissions.

Crankcase Emission Control System

System for managing crankcase emissions.

Problems Affecting Emissions

Common Emission-Related Symptoms

Signs of emission system issues.

Consumer Information

Vehicle Stopping Distance

Braking performance data.

Specifications

Dimensions and Weight

Physical characteristics of the motorcycle.

Engine Specifications

Spark Plugs and Valve Clearance

Specifications for ignition and valve timing.

Chassis and Suspension Specifications

Caster, Trail, and Tire Sizes

Geometric and tire specifications.

Power Transmission and Electrical Specifications

Gear Ratios and Generator Output

Drivetrain and electrical system details.

Lights and Fuse Specifications

Bulb Wattage and Fuse Ratings

Details on lighting and fuses.

Owner Satisfaction

Resolving Dealership Issues

Steps for addressing problems with the dealer.

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