Spark Plug Inspection - flyscooters Trek Owner's Manual

Periodic Maintenance

Spark Plug Inspection

The spark plug is an important engine com-
ponent. The condition of the spark plug can
indicate the condition of the engine. There-
fore, you should periodically inspect it for
signs of deterioration.
Deposits around the electrode area cause the
spark plug to slowly break down and erode.
You should replace the spark plug if there are
signs of wear.
Before installing the spark plug, adjust the
gap to 0.8mm with a gauge for best perfor-
mance. An incorrect gap can cause damage
to the scooter's engine.
Spark plug gap: 0.8mm
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