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  1. #1

    97 GP1200 carb settings

    Hi what are the stock carb settings, jet and needle sizes for a stock 97 GP1200 non pv? Also what should stock pop off be? thanks for any help!!

  2. #2
    Yamaha artisan Cutlass's Avatar
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    Off the top of my head, the needle/seat is 1.2 mm. The pop-off is pretty high, like in the 70s psi.
    I'd have look in the service manual later to find the other info

  3. #3
    ncdoo's Avatar
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    HS 1/2 turns #1 and 3; 7/8 turn #2

    LS 1 1/4 #1 and 2; 1 1/8 #3
    Main jet 135
    Low speed jet #1 100 #2 95 #3 97.5
    1.5 Needle and seat
    Not sure on the pop-off

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  5. #4
    100 pilots 135 mains 1.5ns 115g springs 1-1/4 turns out on lows (all 3), 5/8 out on 1&3 and 7/8 out on center.
    This should work for a completely stock setup. Add 1/4 turn out on all 3 high speed screws for flame arrestors.
    Pop off is 38-42 psi according to sbt but seems like it should be higher with the 115g spring...

  6. #5
    Quote Originally Posted by ncdoo View Post
    HS 1/2 turns #1 and 3; 7/8 turn #2

    LS 1 1/4 #1 and 2; 1 1/8 #3
    Main jet 135
    Low speed jet #1 100 #2 95 #3 97.5
    1.5 Needle and seat
    Not sure on the pop-off
    I know this is an old tread and my question is stupid but here we go.....
    What Carburator is Carburator #3? I am assuming that is the last one from the front of the ski to the back. I just need confirmation.

    Thank you

  7. #6
    Yamaha artisan Cutlass's Avatar
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    #3 is the rear/PTO side

  8. #7
    THank you

    Quote Originally Posted by Cutlass View Post
    #3 is the rear/PTO side


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