See also:

Valve clearance adjustment - OHV and HCS engines (Every 12 000 miles or 12 months)
OHV engines 1 This operation should be carried out with the engine cold and the air cleaner and rocker cover removed. 2 Using a ring spanner or socket on the crankshaft pulley bolt, turn the cran ...

Alternator brushes and regulator - renewal
Bosch alternator 1 With the alternator removed from the engine, clean the external surfaces free from dirt. 2 Extract the brush box/regulator screws from the rear cover and withdraw the brush bo ...

Ignition systems
The ignition system is divided into two circuits, low tension (primary) and high tension (secondary). The low tension circuit consists of the battery, ignition switch, primary coil windings and th ...