SY250F General Service - Scorpa

General informations
In order to take the spark plug off, follow those two stages :
1. Take off the anti-interference system
2. Unscrew the spark plug in the direction (B) thanks to a spark plug spanner.
The spark plug state check consists in two stages too :
1. Make sure the porcelain colour around the electrodes is dark or light coffee
coloured, because that colour shows the spark plug works in good conditions.
2. Check the weakening level and that the carbon deposits thickness are not
excessive. If one of those situations happens, it is time to replace the spark plug.
There are four phases in the spark plug reassembly :
1. Measurement of the electrodes gap, thanks to a wedge whole set. If needs be,
adjust to the recommended value: 0,6 to 0,7mm
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