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Kymco Master
53,816 Answers
- Posted on Jul 19, 2016
Re: Kymc UXV 500 , frequent dead spark plug, causes?...
If the center electrode is burning away, it indicates that the mixture is too lean at high rpms or load
check adjust float level , clean out main jet or fit correct jet size
if 2 stroke check for leaking crankshaft seals
change the heat range of the plug to as cold as possible
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