12_11
Unscrew the spark plug by using the supplied wrench.
12_12
Check the spark plug's wear status and cleanliness, and, if necessary, clean it with
pure petrol and a metallic brush. Check the status of the spark plug's insulation, and
replace the spark plug if any cracks or breaks are encountered.
Reinsert the spark plug manually at the appropriate angle, and only use the wrench
to tighten it.
CAUTION
THE SPARK PLUG MUST BE REMOVED WHEN THE ENGINE IS COLD. THE
SPARK PLUG MUST BE REPLACED AT THE TIME INTERVALS INDICATED ON
THE SCHEDULED MAINTENANCE TABLE. THE USE OF SPARK PLUGS OF DIF-
FERENT THERMAL GRADE FROM THAT REQUIRED OR WITH INAPPROPRIATE
THREADS COULD SERIOUSLY DAMAGE THE ENGINE.
76
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