See also:

Coolant renewal (Every 24 000 miles or 2 Years)
Cooling system draining 1 It is preferable to drain the system when the coolant is cold. If it must be drained when hot, release the pressure cap on the thermostat housing (or expansion tank on la ...

Carburettor (Weber 2V type) - fast idle speed adjustment
1 This procedure does not apply to models fitted with a carburettor stepper motor, for which no adjustment is possible. 2 Check the idle speed and mixture. The idle speed must be correct before at ...

Mixture adjustment check (Every 6000 miles (10 000 km) or 6 months)
Caution: Refer to the precautions in Section 1, Chapter 4, Part A or B (as applicable), before proceeding. Before carrying out any carburettor adjustments, ensure that the ignition timing and sp ...