APRILIA scarabeo 125 i.e. Service Station Manual page 30

Maintenance
For removal and cleaning:
CAUTION
BEFORE CARRYING OUT THE FOLLOWING OPERATIONS AND IN ORDER TO AVOID BURNS,
LEAVE ENGINE AND SILENCER TO COOL OFF TO AMBIENT TEMPERATURE.
•
Remove the tube «1» of the spark plug
«2».
•
Clean off any trace of dirt from the
spark plug base. Then unscrew it using
the spanner supplied in the toolkit and
remove it from its fitting, being careful
not to let dust or any other substance
come into the cylinder.
•
Check that the spark plug electrode
and centre porcelain are free of carbon
deposits or signs of corrosion. If nec-
essary, clean using suitable spark plug
cleaners, a wire and/or metal brush.
•
Blow with a strong air blast to avoid re-
moved dirt getting into the engine. Re-
place the spark plug if there are cracks
on the spark plug insulating material,
corroded electrodes or several depos-
its.
•
Check the electrode gap with a feeler
gauge. This gap should be 0.7 - 0.8
mm; adjust it if necessary by carefully
bending the ground electrode.
•
Make sure the washer is in good con-
ditions. Once the washer is fitted, man-
ually screw the spark plug to avoid
damaging the thread.
•
Tighten using the spanner supplied in
the toolkit, make the spark plug com-
plete 1/2 of a turn to press the washer.
CAUTION
TIGHTEN THE SPARK PLUG CORRECTLY. OTHERWISE,
THE ENGINE MAY OVERHEAT AND GET IRRETRIEVABLE
DAMAGED.
MAIN - 30
SCARABEO 125 i.e. - 200 i.e.