BSA M20 - Index

INDEX – GENERAL
Pages
Pages
Brakes
28
Front Forks
23
Carburetter
10
Gearbox and Gearchange
25
Clutch
21
Hubs
27
Charging System
36
Ignition System
32
Electrical Wiring System
30-31
Lighting and Accessories
42
Engine Adjustments
8
Lubrication System
3
Engine – Complete dismantling
12
Lubrication Chart
4-5
Engine – Decarbonising
11
Steering Head
28
Engine – re-assembly
16
Transmission
20
Engine – removal from frame
12
Useful Data
2
INDEX – DETAILS
Pages
Pages
BRAKES
Ignition System
- continued
Adjustment – Relining
28
Slipping clutch – sparking plug -
CARBURETTER
Suppressor - immobiliser
33
Mixture – Needle position – Pilot adjustment –
Re-assembling and testing slipping clutch
35
Throttle stop.
10
Lighting and Accessories
ENGINE ADJUSTMENTS
Headlamp – Tail lamp – Cables - Lighting
Oil-pressure valves – Exhaust valve lifter
8
switch
42
Tappets – Ignition timing
8-9
Horn
43
ENGINE DISMANTLING
Wiring diagrams
30-31
Cylinder head – Cylinder barrel – Valves
6-7
Valve grinding – Valve guides, removal
FRONT FORKS
and replacement
11
Adjustment
28
Piston and Rings – Checking ring gap –
Dismantling – fitting new spring – re-assembly
29
removing engine from frame
12
Removing Magdyno pinion
13
GEARBOX
Oil pump, removal and dismantling –
Removal – dismantling
23
“Splitting” crankcase – removing
Dismantling Gearchange – Re-assembling
Bearings
14
Gearbox
24
Removing cam spindles – dismantling
Re-assembling gearchange
25
flywheels – reboring cylinder - fitting
Replacing gearbox
26
new cylinder lining.
15
ENGINE RE-ASSEMBLY
HUBS
Flywheel assembly and alignment
16
Rear – adjustment – dismantling and
Replacing oil pump – tappets – replacing
Re-assembly
27
bearings – re-assembling crankcase -
Front
27-28
Replacing timing gears & magdyno
17
Replacing piston – cylinder barrel - timing
LUBRICATION
Cover – cylinder head – exhaust valve
Engine lubricating system
3
lifter – refitting engine in frame.
18
Lubrication chart
4
ELECTRICAL EQUIPMENT
Hubs – Brake cam spindles - Speedometer
Charging System
Drive – Filters – Rear chain – Dynamo -
Dynamo
Gearbox
5
Testing – Removal and Replacement
36
Oil pump – removal – dismantling and
Dismantling – Brushes - Commutator
37
Re-assembly
14
Field coil, testing and removing -
Armature – Bearings
38
TRANSMISSION
Re-assembly
39
Clutch – adjustment
20
Cut-out and Regulator
39
Clutch – dismantling
21
Cleaning contacts – setting regulator -
Clutch – re-assembly
22
Cut-out
40
Chaincase - removal
12
Ammeter – Removal and Replacement
41
Chaincase - replacement
18
Battery – Care of
41
Chain adjustment
20
Ignition System
Wheel alignment
21
Magneto lubrication – adjustment – testing -
Cleaning contact breaker – H.T. cable -
SHOCK ABSORBER – Adjustment
28
Pick-up
32
Removal – dismantling – removing and
STEERING HEAD
testing armature
34
Adjustment
28
Re-assembly
35
Dismantling – re-assembly
29