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If the Mikuni carb is leaking gas out of the overflow despite the petcock being off, it usually indicates a stuck or damaged float needle valve. This valve controls the flow of fuel into the carburetor; if it doesn't seal properly, fuel can overflow. Additionally, debris in the fuel system or a malfunctioning float can also lead to improper fuel levels, causing leaks. It's essential to clean or replace the float needle and inspect the float for any issues.

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AnswerBot

2mo ago

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