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Thread: HELP PLEASE: Jetting for 250r using FMF Fatty Gold Series Header Pipe???????????

  1. 10-08-2009, 08:49 PM #1
    LockNut's Avatar
    LockNut
    LockNut is offline New to the board Arm chair racerNew to the board
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    Question HELP PLEASE: Jetting for 250r using FMF Fatty Gold Series Header Pipe???????????

    Does anybody know the answer to this question? Or should I just leave it at the stock jetting?

    Many Thanks.
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  2. 10-09-2009, 04:31 AM #2
    harryredtrike's Avatar
    harryredtrike
    harryredtrike is offline Power User Got the holeshot
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    your going to have to go up a jet or two,and play with the air mix screw.youll have to tune the carb to the pipe.
    1985 ATC 250R
    . Team Red Trike
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  3. 10-09-2009, 07:50 AM #3
    Kintore's Avatar
    Kintore
    Kintore is offline I put that bottle WHERE?!? The day begins with 3WW
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    On my spare 85R, the jetting so rich from factory that I threw a FMF Fatty and some reeds in there, and the plugs came out paper bag brown.

    Just throw it on there and see with a plug chop
    RPFLU member and co-owner.
    Hardtails is all we do.
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