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  1. #1

    Jetting for 01 gp1200r please help

    I have a 2001 gp 1200r in my shop...it has a d plate, aftermarket flame arrestors, and reed stuffers......it is ridden in southwest lower michigan just wondering what it should be jetted at and what the low and high speed screws should be set at.....it has 117.5 mains and 87.5 pilots which i think is stock in it at the moment Thanks
    Matt


  2. #2

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    This should help you.........110p 120m 1.5n/s. Start w/ 2 out on your high. Dial in your lows first, then work on you highs and you will be the shitnit.

    Coop

  3. #3
    100 MILES OF HEAVEN AND I AM SMACK IN THE MIDDLE KEYZBUM's Avatar
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    YOOOOOOOOOOOO MATT
    WELCOME TO THE FORUM
    got any pics
    mattman

  4. #4
    Quote Originally Posted by coop View Post
    This should help you.........110p 120m 1.5n/s. Start w/ 2 out on your high. Dial in your lows first, then work on you highs and you will be the shitnit.

    Coop
    This jetting should work with the accelerator pumps disabled and F/A's, some use 125 mains.

  5. #5
    WE DONT DIAL 911 RDH's Avatar
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    welcome to the forum!


    the search button is your friend..

    try this,,,, its got all the options
    http://www.greenhulk.net/forums/showthread.php?t=30369

  6. #6
    so even with the accelerator pump hooked up it should have 125 mains and 110 pilots? damn i guess the 117.5 mains and 87.5 pilots are a little to lean eh? i for sure need a differnet spring in too? what should pop off be? thanks for all the help guys

  7. #7
    All hail the Chief! fullboogie's Avatar
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    For god's sake don't use 125's on that thing. That's way too much jet for your mods. Follow Coop's recommendation and you'll be fine.

  8. #8
    WE DONT DIAL 911 RDH's Avatar
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    Quote Originally Posted by xprider02 View Post
    so even with the accelerator pump hooked up it should have 125 mains and 110 pilots? damn i guess the 117.5 mains and 87.5 pilots are a little to lean eh? i for sure need a differnet spring in too? what should pop off be? thanks for all the help guys

    just take the acc pump off... thats what i did when i was running 110/125/ silv95 gr.spr/1.5 n&S
    Last edited by RDH; 05-16-2008 at 04:15 PM.

  9. #9
    Moderator RX951's Avatar
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    Lightbulb

    Quote Originally Posted by xprider02 View Post
    I have a 2001 gp 1200r in my shop...it has a d plate, aftermarket flame arrestors, and reed stuffers......it is ridden in southwest lower michigan just wondering what it should be jetted at and what the low and high speed screws should be set at.....it has 117.5 mains and 87.5 pilots which i think is stock in it at the moment Thanks
    Matt
    welcome to the forum.
    Please read this thread for GP1200R jetting specs

    http://www.greenhulk.net/forums/show...p1200r+jetting


    .
    .
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  10. #10
    I have 120 mains 110 pilots 95 gram springs but no 1.5 n/s's so will the stock n/s's be ok with this jetting? i think they are 1.2 n/s

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