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INSTRUCTION BOOK
350 c.c.
Model 16
Standard 20 and 20 De-Luxe (500 c.c.)
Standard 31 and 31 De-Luxe (650 c.c.)
CS and CSR Models (650 c.c)
A.J.S. MOTOR
Proprietors : ASSOCIATED
J
A
A
A
SINGLE CYLINDER
MODEL
SPINGTWINS
Issued by:
CYCLES
MOTOR
S
:
LONDON
'CYCLES
LTD.
500 c.c.
Model 18
S.E.18

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Summarization of Contents

Safety on the Road
Motorcycle Safety Advice
Basic safety advice for motorcyclists regarding road usage and vehicle control.
DATA
Engine Specifications
Details on engine sizes, bore, stroke, and cylinder dimensions.
Carburetter and Ignition Data
Jet sizes, needle positions, contact breaker gap settings.
Gear Ratios and Chains
Ratios for all gears, sprocket teeth counts, and chain dimensions.
CONTROLS
Handlebar and Foot Controls
Identification and function of all rider controls.
Dashboard Instruments
Identification of speedometer, ammeter, and lamps.
DRIVING
Fuel, Starting, and Warm-up
Procedures for fuel, starting, and warming up the engine.
Riding Techniques
Guidance on gear selection, riding, and engine break-in.
LUBRICATION
Engine, Gearbox, and Hub Lubrication
Recommended oils and greases for key components.
Fork and Chain Lubrication
Lubricant types for front forks and drive chains.
Oil Circulation Systems
Explanation of oil flow for singles and twins.
MAINTENANCE
Periodic Maintenance Schedule
Recommended checks and tasks at mileage intervals.
Daily and Weekly Checks
Essential daily and weekly maintenance tasks.
ENGINE SERVICE
Tappet and Rocker Adjustment
Procedures for adjusting valve tappets and rockers.
DECARBONISATION
Component Removal Procedures
Steps for removing major engine components.
Valve and Piston Service
Procedures for valve grinding and piston replacement.
Timing and Ignition Settings
Adjusting ignition and valve timing for optimal performance.
CARBURETTER SERVICE
Carburetter Function and Adjustment
Explains carburettor operation and adjustment steps.
Air Filter Maintenance
Instructions for cleaning and maintaining the air filter element.
Carburetter Tuning Issues
Common problems affecting idling and fuel consumption.
TRANSMISSION SERVICE
Gear Box Operation and Lubrication
Details on gear box cover removal, lubrication, and assembly.
Clutch Adjustment and Service
Procedures for clutch adjustment and servicing.
Chain Adjustment
Procedures for adjusting front and rear drive chains.
FORK & FRAME SERVICE
Steering Head Adjustment
How to adjust steering head bearings for proper play.
Front Fork Servicing
Maintenance and oil topping up for front forks.
Rear Suspension
Information on rear suspension unit lubrication and adjustment.
WHEELS AND BRAKES
Wheel Removal and Refitting
Steps for removing and refitting front and rear wheels.
Wheel Bearing Adjustment
How to adjust wheel bearings for proper play.
Brake Adjustment
Procedures for adjusting front and rear brake shoes.
ELECTRICAL SERVICE
Alternator and Lighting Systems
Operation and maintenance of the alternator and lighting.
Magneto Ignition System
Information on the Lucas magneto and contact breaker.
Dynamo, Control Box, and Battery
Dynamo operation, control box, and battery maintenance.
Lighting and Accessories
Details on spark plugs, lamps, horn, and electrical terminals.
USEFUL INFORMATION
Tracing Mechanical Troubles
Common engine problems and their probable causes.
Cleaning and Appearance
Methods for cleaning the motorcycle and maintaining its finish.
REPAIRS AND SERVICE
Service Department Operations
Contact and operational details for the service department.
Spare Parts Ordering and Correspondence
Guidelines for ordering parts and communicating with the company.
FREE SERVICE SCHEME
Initial Inspection and Service
Details of the free service offered after purchase.
SPARE PARTS
Parts List and Ordering Information
Information on finding stockists and ordering spare parts.
TOOLS AND SPECIAL EQUIPMENT
Standard and Optional Tools
Lists standard and optional tools for maintenance.
GUARANTEE
Guarantee Terms and Repairs Guarantee
Conditions and limitations of the product guarantee and repair warranty.

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