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william31Aug 2, 2025
How to test spark plug on KYMCO Scooter?
- CCharlene GoodmanAug 2, 2025
To troubleshoot a hard-starting KYMCO Scooter, begin by removing the spark plug and installing it into the spark plug cap. Then, test for a spark by connecting it to the engine ground. This helps identify issues like a faulty, fouled CDI unit, or a weak spark related to a faulty A.C. generator, broken ignition coil, or shorted exciter coil.