Four-stroke Principle
1966 Triumph unit 650 engine - exploded view
Triumph 650 unit oil system
Triumph 650 unit 4 speed gearbox part numbers
Triumph 650 unit 4 speed gearbox components
Exploded view of a unit 650 4 speed gearbox
Triumph unit 650-750 5 speed gearbox
Exploded view of a 650-750 gearbox
Exploded view of the clutch used on all Triumph unit motorcycles
1963-65 Rear wheel specifications
West Coast USA specifications/bulletin
Original 1967 TR6C coil position
Differentials between 1963 -1966 + frames
Line reamer for Camshaft bushes