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7.2 CHARACTERISTICS OF THE ENGINE SPARK PLUG AND SERVICING.
Apart from the weekly maintenance prescribed in the maintenance calendar, clean or replace the
spark plug whenever necessary for the engine to work correctly. To do so, consult the engine
explanations manual supplied with the plate.
Consult point 4.1 ENGINE DATA to choose the spark plug and to know the airgap.
7.2.1.
Remove the lid from the spark plug and use a suitable spark plug wrench to take the
spark plug out.
7.2.2.
Visually check the spark plug and replace it if any wear is visible or if the insulator has
split or cracked.
7.2.3.
If the spark plug is correct, clean with a wire brush.
7.2.4.
Verify that the airgap is between 0.7 and 08 mm.
0.7 – 0.8 mm
7.2.5.
Check that the spark plug washer is in good conditions and install the spark plug by
hand so as not to spoil the thread.
7.2.6.
Then tighten with the spark plug wrench to compress the washer.
When installing a new spark plug, tighten 1⁄2 turn after putting it into place. If the spark
plug is used, tighten it between 1/8 and 1⁄4 turn after putting into place.
PRECAUTION
: the spark plug must be fitted tightly, because if not, it will heat up and
may damage the engine.
VIBRATING PLATES
15
PEN10B-PEN13C-PEN16C-PEN16D
