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Why does your 2007 Honda 420 rancher ATV keep fouling spark plugs?
Wiki User
∙ 13y ago
It's a fuel injected motor and goes into a fuel enrichment mode when first started (the first 5 minute's or until the motor is warm enough). If you start and stop it frequently it will gunk up the plug due to the rich fuel mixture not allowing adequate burn off. Allow it to idle until engine is hot to eliminate this problem
Wiki User
∙ 13y ago
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