SWM Superdual 2017 Manual - Uso - Mantenimiento página 80

The engine lacks power
- dirty air filter: clean
- the spark plug electrode gap is too large: adjust;
- incorrect valve clearance: adjust;
- insufficient compression: check for the cause
The engine knocks
- excessive carbon deposit on the piston crown, or
in the combustion chamber: clean
- faulty spark plug or wrong heat rating: replace
The alternator fails to charge, or its charge is insuf-
ficient
- the cables on the voltage regulator are badly con-
nected, or in short-circuit: correctly connect, or re-
place
- faulty alternator coil: replace
- de-magnetised alternator rotor: replace
- faulty voltage regulator: replace
The battery overheats
- faulty voltage regulator: replace
Difficulty in shifting gears
- engine oil with too high viscosity rating: replace
with the recommended oil
The clutch slips
- insufficient spring load: replace
- worn-out clutch plates: replace
EN - 20
Faulty brakes
- worn-out pads: replace