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XR400R jetting question
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    Kiwi
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    Joined:Thu Sep 25, 2008 12:22 pm
    XR400R jetting question

    by Kiwi » Thu Mar 19, 2009 9:24 am

    I know it's not a CRF but ...

    My boss has a 2004 Honda XR400R that is all stock. Any recommendations on the proper main jet size (for around 2,000 - 4,000 feet altitude) as well as a needle for his bike?
    2007 CRF450X with modified airbox, Uni filter w/no backfire screen, NCVS needle on 4th, 172 main, CRFs fuel screw at 2, Boyesen QS3, stock smog, 450R cam, FMF Megabomb header, Pro Circuit T-4 muffler, Pro Taper Evo bars, AS suspension
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