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  1. #1

    SEADOO Power Gas Valve question on GPR

    Ii bought a 2001 gpr1200r off a guy a couple weeks ago, how ever it has power gas valves he said they were for a seadoo 951 cc and he had to get 751 cc springs so the valve would open more. Can someone please explain what you can do with these things. Should i get different springs for them and how do I know there working to full potential.


  2. #2
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    Quote Originally Posted by patrick webb View Post
    Ii bought a 2001 gpr1200r off a guy a couple weeks ago, how ever it has power gas valves he said they were for a seadoo 951 cc and he had to get 751 cc springs so the valve would open more. Can someone please explain what you can do with these things. Should i get different springs for them and how do I know there working to full potential.
    theres a guide inn the how to section, start by reading that.

  3. #3
    Moderator RX951's Avatar
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    RIVA Gas Valves

    http://greenhulk.net/forums/showthre...riva+gas+valve

    http://greenhulk.net/forums/showthre...riva+gas+valve

    On my GP1200R, I personally used the black bellows from the 787 motors. They were softer and allowed the valve to open faster.
    For the guys running GP1300R's, they mostly used the VITON (green) bellows from the 951 motor. They were a tad stiffer, but the 1300R's develped moreexhaust gas pressure due to displacement. The VITON bellows lasted longer as well. I got 200 hours out of my black rubber bellows. If I am not mistaken, I think you can only get the (green) VITON now.

    The key to installation of these bellows it to ensure you do not twist/kink them whe you install. If there is a wrinkle/kink, it will allow that spot to become weak and eventually tear.

  4. #4
    o uncola o's Avatar
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    Quote Originally Posted by RX951 View Post
    http://greenhulk.net/forums/showthre...riva+gas+valve

    http://greenhulk.net/forums/showthre...riva+gas+valve

    On my GP1200R, I personally used the black bellows from the 787 motors. They were softer and allowed the valve to open faster.
    For the guys running GP1300R's, they mostly used the VITON (green) bellows from the 951 motor. They were a tad stiffer, but the 1300R's develped moreexhaust gas pressure due to displacement. The VITON bellows lasted longer as well. I got 200 hours out of my black rubber bellows. If I am not mistaken, I think you can only get the (green) VITON now.

    The key to installation of these bellows it to ensure you do not twist/kink them whe you install. If there is a wrinkle/kink, it will allow that spot to become weak and eventually tear.

    Very good information.

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