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BSA b50 series - User Manual

BSA b50 series
25 pages
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Summary

Introductory Notes

Technical Data and Controls

Control Identification

Identifies various controls on the motorcycle, including levers, switches, and pedals.

Taking Over the Machine

Gasoline (Petrol) Handling

Information on fuel type and handling for the motorcycle.

Handlebar Controls Overview

Details on twist grip, brake levers, clutch, and other handlebar controls.

Other Hand Controls

Describes petrol taps, steering lock, and master electrical switch functions.

Foot Controls and Instruments

Foot Controls Operation

Explains the operation of gearshift, rear brake, stop-light, and starter pedals.

Motorcycle Instruments Guide

Details on speedometer, revolution counter, and warning lights.

Driving Procedures

Starting the Motor

Step-by-step guide for starting the motorcycle engine.

Stopping the Motor

Instructions on how to safely stop the motorcycle engine.

Breaking-in Procedure

Guidance on the initial running-in period for the new engine.

Routine Maintenance Schedule

Weekly Maintenance Checks

Items to check weekly for optimal performance and safety.

2,000 Mile Service Items

Maintenance tasks to be performed every 2,000 miles.

4,000 Mile Service Items

Maintenance tasks to be performed every 4,000 miles.

10,000 Mile Service Items

Maintenance tasks to be performed every 10,000 miles.

As Required Maintenance

Maintenance tasks performed based on specific needs or conditions.

Lubrication System Overview

Oil Filters Maintenance

Changing Engine Oil

Valve Clearances Adjustment

250 cc Engine Valve Clearances

Procedure for setting valve clearances on 250cc engines.

500 cc Engine Valve Clearances

Procedure for setting valve clearances on 500cc engines.

Exhaust Valve Lifter Adjustment

Contact Breaker Maintenance

Contact Breaker Cleaning

Instructions for cleaning the contact breaker points.

Contact Breaker Gap Setting

How to set the correct gap for the contact breaker points.

Advance and Retard Mechanism

Spark Timing Procedure

Spark Timing Without Strobelight

Method for timing the spark without specialized equipment.

Spark Plug Maintenance

The Amal Carburettor

Carburettor Jets and Float Bowl

Information on carburettor jets and float bowl maintenance.

Pilot Mixture and Slow-Running Adjustments

Throttle Cable and Air Filter

Routine Lubrication Intervals

Lubrication Checks Every 250 Miles

Lubrication tasks required at 250-mile intervals.

Lubrication Checks Every 1,000 Miles

Lubrication tasks required at 1,000-mile intervals.

Lubrication Checks Every 2,000 Miles

Lubrication tasks required at 2,000-mile intervals.

Lubrication Checks Every 4,000 Miles

Lubrication tasks required at 4,000-mile intervals.

Lubrication Checks Every 10,000 Miles

Lubrication tasks required at 10,000-mile intervals.

Lubricant Recommendations

USA Only Lubricants

Recommended motor oils and lubricants for the USA market.

Other Countries Lubricants

Recommended motor oils and lubricants for other countries.

Chains, Clutch, and Transmission (Gearbox)

Primary Chain Adjustment and Lubrication

How to adjust and lubricate the primary chain.

Rear Chain Lubrication and Adjustment

Clutch Control and Spring Pressure

Transmission (Gearbox) Maintenance

Wheels and Brakes Overview

Tire Pressure and Bearings

Information on tire inflation and wheel bearing maintenance.

Speedometer Gearbox and Brake Cam Spindle

Maintenance for speedometer gearbox and rear brake cam spindle.

General Brake Information

General advice on maintaining brake efficiency.

Rear Brake Adjustment

Front Brake Adjustment

Wheel Removal Procedures

Rear Wheel Removal

Steps for removing the rear wheel assembly.

Front Wheel Removal (8-inch Brake)

Steps for removing the front wheel with 8-inch brake.

Front Wheel Removal (6-inch Brake)

Steps for removing the front wheel with 6-inch brake.

Suspension and Steering Adjustments

Front Forks Servicing

Information on servicing the front forks, including oil changes.

Steering Head Adjustment

How to adjust the steering head for play and smooth rotation.

Rear Suspension

Notes on the rear suspension units and their maintenance.

Wheel Balancing

The Electrical Equipment

Electrical Equipment Description

Overview of the electrical system components and function.

Alternator and Zener Diode

Maintenance for the alternator and zener diode.

Ignition Components and Switches

Information on ignition coil, capacitor, and switches.

Lighting System Removal

Battery Maintenance

Battery Topping-Up

Procedure for checking and adding distilled water to the battery.

Battery Maintaining Condition

Advice on maintaining battery charge and preventing sulfation.

Headlight Beam Setting and Bulb Replacement

Pilot Light and Direction Indicator Lights

Stop;Tail Light Replacement

Wiring Diagram and Cable Harness

The Capacitor and Running Without Battery

Running Without the Battery

Function of the capacitor and how to run the motorcycle without a battery.

Electrical Equipment (Moto-cross Models)

Alternator and Ignition Coil

Details on the moto-cross model's alternator and ignition coil.

Brake Burnishing Procedure

Brake Burnishing Stage 1

First stage of brake burnishing procedure.

Brake Burnishing Stage 2

Second stage of brake burnishing procedure.

Brake Burnishing Stage 3

Third stage of brake burnishing procedure.

BSA b50 series Specifications

General IconGeneral
Displacement499 cc
Frame TypeSingle downtube
Front SuspensionTelescopic forks
Rear SuspensionTwin shock absorbers
Front BrakeDrum
Rear BrakeDrum
IgnitionCoil
Final DriveChain
Transmission4-speed

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