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Rachel

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  • Help CR250 problem.?

    I have a CR250. It has a 330 big bore kit, with stroker crank. Boyesen rad valves and mikuni carborator. Kand N air filter with FMF exhaust. And I can't keep it from fouling out my spark plugs. I've tried all types of jets and it runs rich with oil in the gas. What can be causing this and how can I fix this? I use klotz mixing oil mixed 50 to 1 and required. Thanks.

    7 AnswersMotorcycles1 decade ago