After i got the yosh full exhaust on i'm pretty sure that i'm running to rich. It throws a flame when i let off when in neutral and has a hesitation when i let off and then peg it again near the top of a gear. I bought a jet kit and a k&n filter when i bought the exhaust but wanted to see what the exhaust would do alone. Any suggustions on how to fix this problem?

 

Only two solutions besides motor tearing it self up. Jet it. Or take the pipe and k+n off.

 

Your lean.

 

Hey,

so popping/backfiring when letting of the gas quickly would indicate leaness? where would the leaness be? (low/mid/top end?) or in other words, which jet needs to be worked on?

thanks,
bigmac

 

TTT

 

Idle mixture screws and/or pilot jets.