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  1. #1

    loss of rpm and power

    Yes, I am new and made a dumb mistake(I need confirmation though).

    Stock 1997 gp 1200 with 120-118-120 compression and will rev to 6900psi plus out of the water. I had some battery issues and while the ski was down I installed a primer kit and cut out the two middle bars of the stock intake grate.

    1.Did I need to adjust the carbs after removing the choke linkage?

    2.Did removing the two center (4 stock) bars from the intake grate really cost me 1500 - 2000 rpms max speed, and loss of thrust?

    What is the recommended intake grate and impeller for this ski in stock form?

    Thanks in advance for the help and suggestions.

  2. #2
    Happily Self-Employed WFO's Avatar
    Join Date
    Nov 2005
    Houston, Texas

    You will have better luck posting this thread in the Old School section.

  3. #3
    Mongoose's Avatar
    Join Date
    Aug 2005
    Removing the 2 centre bars is avery good mod on the older GP skis-All gain.
    I would check that the choke plates are fully open after the primer install-If they are not, that would cost you rpm's.
    Solas X0, then Skat/solas13/19 I would say.

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