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sean9

fuel leaking when bike is shut off

11 posts in this topic

my freind has a 2000wr400 and when his bike is shut off it leaks fuel what could be the problem.he has changed gaskets in the pepcock.

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Ahhh......yeah. I think we need more information. Such as, just where is it leaking from? With this information, we might be able to help. Maniac

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Like newbernbears said, I'd check the needle & seat first, and then check the float height too. Make sure it's in spec. You do have a manual, right? Maniac

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Or you could simply turn the petcock off when you are not riding. Amazing how many people don't do this one simple thing. If it still leaks you have a petcock anno it a carb problem like was mentioned; if not go for needle and seat and check the float height.

Mike

Edited by miweber929

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The float level may not be correctly adjusted. If you go the the trouble of removing the carb to clean it, you should make sure the float level is set @8mm too.

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The o-ring that goes around the outside of the seat. They harden up over time and does exactly what you describe.

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