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  1. #1
    philip_gpr's Avatar
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    Jetting - Anybody using unported 1300 cylinders on a GP1200R?

    Is anybody using unported 1300 cylinders on a GP1200R ski with the OEM carbs?

    I am looking for jetting information.

    I am currently using
    110 pilot
    130 main

    It seems I am a little rich on the main and I am wondering what experience others have had?

    1300 cylinders
    1200 OEM carbs modified by IR
    stock head / compression
    VF3
    R&D CDI
    05 pump
    stock dynafly 14/20
    85 mm nozzle
    7270 rpm (motor hot, 85 degree weather)
    my stock ski is not quite stock anymore


  2. #2
    They're using the 130 main on the ported 1300's and also on my ported 1200. If you're not ported, you may want to try a 125.

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