Jetting info '03 450 w/ FMF Q?

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  • Throwingdirt

Posted March 01, 2008 - 10:56 AM


I have a 2003 Yz 450 . I had a stock header with a Yoshimura pipe on it and got busted because of sound regulations. So I bought the FMF Q pipe and is harder to start and is hard to keep it at an idle. Does anyone know the correct jetting for this bike at an elevation of 1000ft to 2500ft.

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