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Old 07-31-2011, 02:30 PM   #6
Butler Cox
Join Date: Jul 2011
Posts: 7


Thanks for your reply.

Pipe is as clean as we can determine by inserting long rods and probing around. Haven't yet put a camera in there as there isn't one real close by. Packing has been replaced twice.

More significantly, we've tried other pipes from well-performing race karts and they don't influence the issue at all.

Again, when this FR125 was rebuilt (because it was at 47 hours and because we thought perhaps the rebuild would uncover some cause) all gaskets were replaced with factory fresh.

PS--Did I see your rig up here (Grand Junction Motor Speedway) at the SummerNats? or am I thinking of someone else?

Last edited by Butler Cox; 07-31-2011 at 02:33 PM.
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