Make AJS
Model TWINS
Year 1949-1955
Pages 150
Item MAINTENANCE MANUAL

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Format PDF SCAN





CONTENTS
Chapter I. T H E ENGINE · · · · · · · Page 9
Lubrication SystemCleaning Crankshaft Sludge TrapsO.H.V. Rocker AdjustmentIgnitionTimingRemoving and Replacing Timing GearDecarbonisingEngine NoisesEngine Overhaul Removing Engine from FrameDismantling EngineCentre WebCrankshaft Assembly Main BearingsInspectionReassemblyCrank-case and CrankshaftConnecting-rodsCentreWebInstalling Engine in FrameCrankshaft BalanceCrankshaft Modification.
II. CARBURATION · · · · · · · 58
Carburetter Function1950-54 TypesFaultsPilot-jet ModificationExcessive Petrol Consump-tionMixture BiasMonobloc Carburetter FaultsEngine Fails to IdleHeavy Fuel Con-sumptionCarburetter Flooding.
III. TRANSMISSION · · · · · · · 66
Chain AdjustmentRivet ExtractorChain Lubri-cationGearboxesC.P. Gearbox FaultsB.52 Gearbox FaultsDismantling and Reassembling C.P. Gearbox in the FrameDismantling and Reassembling B.52 Gearbox in the Frame ClutchesOperationAdjustmentClutch Slip Removing the Clutch.
IV. FRAME AND FORKS · · · · · · 89
Steering-head AdjustmentSteering Troubles Wheel AlignmentTeledraulic SuspensionFaults in the Front ForksDismantling the Forks Changing the Fork SpringsReplacing the Oil SealChecking the Oil ContentRemoving the Front-fork AssemblyRemoving a Fork Inner TubeRear-suspension ServiceChecking Oil ContentComplete DismantlingRemoving the Oil Tank and Battery Carrier.
V. WHEELS AND BRAKES · · · · · · 109
Adjusting Front-wheel BearingsDismantling Wheel BearingsRemoving and Refitting Rear WheelDismantling Rear Brake DrumBacklash in the Driving StudsAdjusting Rear Wheel

CONTENTS vii
Chapter BearingsBrakesRemoving and Replacing BrakeLinersFitting New LinersBrake-shoe Adjust-mentIneffective BrakesBrake Squeal. Page
VI. ELECTRICAL AND IGNITION EQUIPMENT Magneto Lubrication Adjustment Cleaning Removal Dynamo Testing Removal Regulator Testing Cleaning Cut-out Testing and Adjustment Burnt Contacts Sparking-plugs Ammeter Testing Battery Lamp Bulbs BlowingRemoving the Headlamp Focusing the Main Driving BeamWiring Diagrams. · · 119
VII. TUNING FOR SPEED Valve TimingValve SpringsRocker ClearancesCarburationExhaust SystemDismantling theEngineFrame AdjustmentsWheels and Tyres Chains. · · · · · · 135
APPENDIX I · · · · · · · 140
Periodic MaintenanceRecommended Lubricants.
APPENDIX 2 Technical DataSpring DataGearbox and ChainData. · · · · · · · 142
INDEX · · · · · · · 148·



As motor bikes and or vehicles are made in generations, these manuals are suitable for other years of manufacture

YOUR LOCAL DEALERSHIP TECHNICIANS ARE USING THE SAME TYPE OF MANUAL TO SERVICE, MAINTAIN, DIAGNOSE AND REPAIR YOUR BIKE.

System requirements for installation

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