Norton 50 - Electrical Wiring Diagram for 1965-1957 Models 88 and 99

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Index2
Technical Data3
Identification Marks3
Handlebar and Controls View5
Running-In6
Cleaning6
Lubrication6
Recommended Lubricants7
Lubrication Chart7
The Engine - Twin Cylinder9
Engine Lubrication System9
Oil Filters9
Engine Oil Pump, Oil Level9
Engine Exploded View10
Circulation of the Oil11
Oil Pressure11
Pentrol Tank - Removal, Refitting11
Cylinder Head Removal11
Removal of Carbon12
Valve Removal, Grinding, Fitting12
Valve Guides - Removal and Fitting12
Cylinder Head - Fitting12
Rocker Adjustment (Tappet Adjustment)13
Rocker Removal and Fitting13
Cylinder Block - Removal14
Pistons - Removal14
Piston Ring Removal and Fitting14
Fitting Insructions for Special "Twiflex" Oil Control Ring (650 C.C. Models Only)14
Pistons - Fitting15
Tappets - Removal and Fitting15
Cylinder Block Fitting, Timing Cover Removal and Fitting15
Pressure Relief Valve Removal and Fitting, Oil Pump Removal and Fitting15
Oil Pump16
Timing Sprockets and Chains Removal16
Timing Sprocket and Chains Fitting and Adjustment16
Ignition Timing - Coil Ignition Models17
Ignition Timing - Magneto Models18
Removal of Engine from Frame18
Crankshaft - Removal and Fitting18
Big End Bearings - Renewal19
Crankshaft - Dismantling and Reassembly19
Small End Bush Removal and Fitting20
Camshaft Bushes Removal and Replacement20
Main Bearings Removal and Replacement20
Intermediate Gear Spindle and Bush Removal and Fitting20
Engine Exploded View (Models ES2 & 50)21
The Engine - Models ES2 & 5022
Maintenance of Engine23
Decarbonising23
Removal of Rocker Box, Cylinder Head and Cylinder Barrel23
Removal of Valves from Cylinder Head23
Fitting of Valves24
Femoving and Refitting of Valve Guides24
Fitting of Cylinder Barrel, Cylinder Head and Rocker Box24
Dismantling and Reassembly of Rocker Box24
To Adjust Tappets25
Removal of Piston and Rings26
Refitting Piston26
Removing and Fitting of Small End Bush26
Removal of Timing Panel26
Fitting Timing Panel27
Ignition Timing27
Removing Timing Gears, Oil Pump and Tappets27
Fitting Tappets, Timing Gear and Oil Pump28
Oil Control Valve28
Examination of the Roller Big End28
Parting of the Crankcase Halves28
Removal of Bearings from Crankcase29
Assembly of Crankcase29
Removing and Fitting of Timing Gear Bushes29
The Transmission30
Chain Adjustment30
Primary Chain30
Rear Chain31
Rear Chain Lubrication32
Chain Hints32
Clutch Adjustment33
Removal and Refitting of Oil Bath33
Clutch - to Dismantle34
Examination of Clutch Parts34
Gearbox35
Removal of Clutch from Frame35
Outer Cover Removal and Fitting35
Assembly of Clutch35
Figure 1936
Positive Foot Change Dismantling, Assembly37
Inner Cover Removal37
Inner Cover Fitting, Dismantling, Assembling37
Removal of Gears37
Removal of Cam Plate38
Fitting Cam Plate38
Fitting Gears into Gearbox38
Wheel, Hubs and Brakes39
Front Wheel Removal39
Front Wheel Fitting39
Rear Wheel Removal, Refitting39
Front Hub Exploded View40
Rear Hub Exploded View40
Rear Hub Dismantling41
Rear Hub Reassembling41
Front Hub Dismantling, Reassembling41
Brakes Adjustment - Front Brake41
Front Forks Maintenance42
Rear Brake Adjustment42
Brakes Dismantling and Assembly42
To Reassemble the Brakes42
Steering Head Adjustment43
Removal of Front Forks43
Refitting Front Forks43
Fork Leg, Dismantling44
Rear Springing45
Fork Leg, Assembly45
Pivoted Fork Removal and Assembly (Swinging Arm)45
Rear Suspension Units45
Handlebar Fittings46
Air Control Lever46
Clutch and Front Brake Control Levers46
Twist Grip46
Amal Carburetor47
Dismantling of the Carburetor47
Reassembly of Carburetor47
Carburetor Tuning48
Tyres Maintenance49
Tyres Removal and Fitting49
Carburetor Maintenance49
Rich Mixture, Weak Mixture49
Electrical Section50
Battery Maintenance50
Wiring Maintenance50
Contact Breaker (and Distributor on Twins) Maintenance50
Headlamp Maintenance51
Ignition51
Alternator. Lucas RM1551
Stator and Rotor of the Alternator View51
Switch52
Normal Running52
Emergency Starting (Coil Ignition Models)52
Increased Charging Rate52
Rectifier53
Coil53
Contact Breaker and Distributor (Models 88, 99 and 650)53
Contact Breaker Setting53
Contact Breaker and Distributor Lubrication and Cleaning54
Contact Breaker (Models 50 and ES2)54
Renewing High Tension Cables54
Battery - Lucas PUZ7E/11, Exide 3EV954
Headlamp55
Bulb Replacement55
Battery Topping up55
Checking Battery Condition55
Tail, Stop and Number Plate Lamp56
Cables56
Lighting and Ignition Switch56
Horn56
Sparking Plug57
Magneto57
Lucas Rotating Armature. Type K2F, K2FC57
Adjusting Contact Breaker Gap57
To Renew High Tension Cables58
Magneto Cleaning58
Note on Pistons59
Note on Camshafts59
Note on Carburetors59
Fitting Sidecars to "Featherbed" Frames59
Fitting Racing Footrests - Rear Set60
Valve Gear Lubrication60
Vibration60
Difficult Starting - de Luxe Models60
Spot/Tali Lamp Leads61
Oil Tanks61
Electrical Wiring Diagram for Models ES2 and 5062
Electrical Wiring Diagram for Models 650 Std, and de Luxe, 99 Std., de Luxe and S.S., 88 Std. and de Luxe63
Electrical Wiring Diagram for Models 500 S.S., 650 S.S. and 650 American64
Electrical Wiring Diagram for Norton 88 S.S. and 500 CC. Twin Magneto Ignition 12 Volt 196465
Electrical Wiring Diagram for Norton Atlas 750 CC. and 650 CC. Manxman (Export) 650 S.S. and 650 CC. Twin Magneto Ignition 12 Volt 196466
Electrical Wiring Diagram for 1965-1957 Models 88 and 9967
750Cc Atlas Model and 750Cc Scrambler Model68
750Cc Atlas Model and 750Cc Scrambler Model - Technical Data69
750 Scrambler Model - Cylinder Head Removal72
750 Scrambler Model - Remove Engine Unit72
750 Scrambler Model - Installing the Engine72
1967 Models - Checking and Adjusting Ignition Timing73
1967 Models - Removing the Base Plate73
1967 Models - Notes on Ignition Timing73
1967 Models - Capacitor Ignition System73
1967 Models - the Capacitor 2MC74
1967 Models - Removing the Battery74
Electrical Wiring Diagram for Models Atlas and 65075
Capacitor-Ignition System76
Capacitor 2MC76
Battery Lucas (PUZ5A) - Filling76
Battery Lucas (PUZ5A) - Maintenance76
Removing Battery77
Checking and Adjusting Ignition Timing77
Removing Base Plate77
Ignition Timing - Auto-Advance Unit77
Finding Top Dead Centre78
Contact-Breaker Assembly78
Refitting Contact-Breaker Cover78
Contact Breaker78
Removing Drive Sprocket79
To Remove Automatic Control79
Lucas' Model 6CA Contact Breaker80
To Adjust the Contact-Breaker Points Gap80
Checking the Ignition Timing80
The Condensers81
Maintenance of the Contact-Breaker81
Amal Concentric Carburetor Exploded View82
Amal Concentric Carburetor Tuning83
Amal Concentric Carburetor Technical Data84
Troubleshooting85

Norton 50 - Electrical Wiring Diagram for 1965-1957 Models 88 and 99

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