Spark Plug Inspection; Ignition System - KYMCO Downtown 350i Repair Manual

9.Electrical Systems Downtown 350i

Ignition System

SAFETY FIRST: Protective gloves and eyewear are recommended at this
point.
The ignition timing is set at the factory and is not adjustable. Perform the
following checks. Before performing any tests make sure the electrical
connections are not loose or corroded.

Spark Plug Inspection

Check the spark plug to see if it is the correct type and gapped properly. If the
spark plug is black and fouled, replace it. See the Spark Plug topic for more
information.
If the spark plug center electrode or side electrode are corroded or damaged,
or if the insulator is cracked, replace the plug.
Measure the gap with a wire-type thickness gauge.
If the gap is incorrect, replace the spark plug.
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