fuel leaking when bike is shut off

[sean9]

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.

[RasmusDK]

then it leaking from the petcock?

[sean9]

thats what i thought but no it wasnt leaking

[MANIAC998]

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

[sean9]

sorry it is leaking from the overflow

[newbernbears]

I'd inspect needle and seat, needle may be stuck

[MANIAC998]

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

[miweber929]

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 December 19, 2011 by miweber929

[2grimjim]

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.

[sean9]

thank you everyone i will look at everything on the carb.and report back

[Pooley]

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