Bearings Main bearings Main bearings summary table Brakes Disc brake improvements Lockheed racing calipers Disc brakes - more Carburettors Carburettors Settings Carburettors - Other Mikuni SU Clutch Clutch Heavy operation Slipping and dragging Crankcase Breather - PCV modifications Breather - part numbers Camshaft alternatives Camshafts & bushes inc. Service Releases Conrods Crankcase (inc. Part Nos.) Crankshaft Crankshaft balancing Crankshaft - staggered pins Main bearings Main bearings Service Releases Main bearings - Superblends Pressure relief valve Cylinder Head & Barrel Barrel Head steadies Identification Oil leaks Pistons - Service Release Tappets Tightening sequence - Method 1 Tightening sequence - Method 2 Exhaust & Silencers 'Black cap' silencers Tightening exhaust nuts Frame & Swinging Arm Steering head bearings Welding Gearbox Layshaft bearing conversions Oil leaks Oil types Ratios Miscellaneous Centre stand Hints and Tips 'O' ring rear chain Piston rings - running in Seat - alternatives Sidecar fitting Side panels and battery boxes Smoking engine Starter motor Oil Filters Leaks - cylinder head Leaks - gearbox Oil - a treatise Oil - synthetic Oil pump - priming Oil pump - repair Oil tank plumbing Pressure Wet sumping - anti-drain valves Wet sumping - anti-drain alternatives Primary drive Primary chaincase Chaincase alignment Belt drives Noise Suspension Forks Fork action improvements Rear spring ratings Shock absorbers Shock absorbers - repairs Wheels Alignment Bearings Offsets Rims & tyres