A	Page.	K.	Page
Air cleaner. Maintenance of	71	Kickstart mechanism. (Illustration)	37
Ammeter. Testing	73	Kickstart mechanism. Dismantling	35
Automatic timing unit. Removal of	39	Kickstart mechanism. Reassembling	38
Automatic timing unit. (Illustration)	40	Kickstart return spring. Replacing	36
Automatic voltage regulator	80
		L.
B.		Lamps	73
Ball valve assembly	20	Lamp bulbs	73
Ball valve assembly. (Illustration)	18	Lighting set	73
Ballrace retaining ring tool. (Illustration)	53	Lubrication of chains	87
Battery. Filling and charging 83 Battery. Maintenance and storage of	84	Lubrication of engine	18
Big-end bearing. Overhauling	45	Lubrication of fork	16
Big-end rollers. Oversizes of	45	Lubrication of gearbox	6
Brake assembly. Front	11	Lubrication of magneto	86
Brake assembly. Rear	55	Lubrication of wheel bearings	11 & 57
Brake adjustment. Rear.(Illustration)	88
Brakes. Relining	56	M.
		Main bearings. Removal	43
C.		Main bearings. Refitting	44
Carburetter. (Illustration)	70	Maintenance. Periodical	101
Carburetter. Sectional view	63,64	Magneto. Maintenance	88
Carburetter, Description of	62	Magneto. Removal	89
Carburetter. Dismantling, etc. 62 Carburetter. Setting and adjusting	71	Magneto. Refitting	89
Chain adjustment. (Primary) 88 Chain adjustment. (Primary) (Illustration)	37	Magneto. Testing	88
Chain adjustment. (Rear)	89	Magneto. Timing	49
Chain adjustment. (Rear) (Illustration)	88	Magneto. (Illustration)	87
Cleaning the machine	91
Clutch. Description of working	29	O.
Clutch. Diagram of operating mechanism	28	Oil circulation system	18
Clutch. Dismantling	50	Oil filter (Suction)	21
Clutch. Reassembling	50	Oil filter (Suction). (Illustration)	21
Clutch. Adjustment of	29	Oil filter (Fabric)	18
Clutch adjustment. (Illustration)	30	Oil filter (Fabric). (Illustration)	18
Clutch thrust bearing	50	Oil-pump. Priming	19
Commutator. Cleaning	77	Oil-pump. Overhaul	40
Commutator connections. (Illustration)	76	Oil-pump. Removal	40
Compression Plates	39	Oil-pump. Removal. (Illustration)	41
Coil Ignition	49,113	Oil-pump alignment tool. (Illustration)	41,42
Coil Ignition System	115	Oil. Recommended grades	6
Crankcase. Separating	43
Crankcase. Main bearings	43	P.
Crankcase suction filter	21	Phases of throttle opening. (Illustration)	66
Crankcase suction filter. (Illustration)	21	Petrol tap and strainer. (Illustration)	72
Crankshaft timing-pinion. Removal of	43	Piston. Removal	39
Crankshaft-pinion extractor. (Illustration)	43	Piston. Refitting	46
Cut-out. Adjustment of	83	Piston ring gaps	7
Cut-out. (Illustration)	81	Primary chain. Removal	33
Cylinder. Removal of	39	Primary chain. Refitting	34
Cylinder. Refitting	46	Primary chain adjustment. (Illustration)	37
Cylinder bore diameter	39	Primary chain case. Removal 33 Primary chain case. Refitting	35
Cylinder head. Removal of	24
Cylinder head. Refitting	26	R.
		Rear suspension. Adjustment 58 Rear suspension adjustment. (Illustration)	58
D.		Rear suspension. Maintenance	58
Decarbonising and grinding in valves	23	Rear suspension units	58
Dynamo belt adjustment	80	Rocker box. Removal	23
Dynamo belt adjustment (Illustration)	22	Rocker box. Refitting	26
Dynamo belt cover. Removal of	33	Retiming ignition	49
Dynamo. Dismantling and reassembling	77
Dynamo. Exploded view	78	S.
Dynamo. Removal of	33	Scrambler models	94
Dynamo. Testing	74	Shock absorber. Removal	23
Dynamo. Special spanner	79	Sleeve gear nut. Refitting	34
		Sleeve gear nut adaptor. (Illustration)	35,36
E.		Sleeve gear nut and spanner. (Illustration)	35,36
Engine bearings	43	Sparking plug. Maintenance	73
Engine lubrication system	18	Steering head bearing. Adjustment	12
Engine. Overhauling	39	Steering head. (Illustration)	12
Engine. Removal from frame	38	Steering head bearing tool. (Illustration)	15
Engine shaft shock absorber	23
		T.
F.		Tappet adjustment. (Illustration)	25
Fabric oil filter	21	Tappet clearances	7
Fabric oil filter. (Illustration)	18	Technical data	7
Flywheel assembly. Lining up	46	Theoretical wiring diagram	82
Flywheel assembly. Overhauling	45	Timing gear	47
Flywheel assembly. Refitting	44	Timing gear markings. (Illustration)	48
Fork. Description of working	13	Timing-pinion. Removal	43
Fork. Dismantling	16	Timing cover. Removal	39
Fork. Maintenance of	16	Torque arms. Removal	60
Fork. Reassembling	17	Torque arms. Realignment	61
Fork. (Sectional illustration)	14	Torque arm clamp tool. (Illustration)	60
		Transfers. Instructions for fixing	90
G.		Trunnion shaft. Removal	60
Gearbox bearings	52	Trunnion shaft. Refitting	61
Gearbox. Dismantling	51	Tyres. Maintenance	91
Gearbox end cover. (Illustration).	37	Tyre pressures	19
Gearbox Reassembling	54
Gearbox. Removal from frame	38	V.
Gearbox. Separating from engine	38	Valves. Refacing and grinding in	24
Gear operating mechanism	52	Valves. Removal. (Illustration)	24
		Valve guide. Renewal	27
H.		Valve guide location. (Illustration)	27
Headlamp. (Illustration)	75	Voltage regulator. Testing and adjusting	80
Hub (Front). (Sectional illustration)	10
Hub. (Rear). (Sectional illustration)	56	W.
Hub bearings. (Front). Dismantling	11	Wheel bearings (Front). Removal	11
Hub bearings. (Rear). Dismantling	56	Wheel bearing (Rear). Removal	55
		Wheel bearings	11 & 56
I.
Intermediate timing gear adjustment	48
Intermediate timing gear. (Illustration)	48
Index to Illustrations	5

Thruxton 500 Supplement 103/115

CONTENTS