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  1. #1

    02 GPR stage III problems

    I have an 02' 1200 gpr with a riva stage 3 kit. The problem is that when i get on the water, and get the machine up on plane, if you go to hit it wide open it has this shuttering like a shaking and wont gain speed. If i back off a little and reapply the throttle it takes off like nothing ever happened. It will do the same thing if you are cruising around say 50mph, then you want to go wide open again it does the same. If anyone has any advice on this issue it would be greatly appreciated.


  2. #2
    WE DONT DIAL 911 RDH's Avatar
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    whats your valve situation?? waveeaters,gas,??

  3. #3
    '02GPRider's Avatar
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    Is this a new development or has it always done this since installing the Stage 3 kit? Sounds like a fuel delivery problem.

  4. #4
    Yes this has done this since the first day the kit was put on. When I shut it off I hear the servo motor for the valves working. I run 92 octane fresh fuel everytime with the 32:1 oil mixture they call for. I checked the popoffs for proper popoff and they checked out ok, the only other thing riva told me to check was the fuel pickup in the tank and make sure its good and not starving itself of fuel.

  5. #5
    WE DONT DIAL 911 RDH's Avatar
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    ya the stock pickups pretty gay.. i would take it out, take the trap door off and extend the main and reserve lines all the way to the bottom...

    how many lines do you have feeding the carbs??

  6. #6
    My son (mohawk man) jeffsntx's Avatar
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    What kind of carb work was done when the kit was installed?

  7. #7
    As far as I know there is just the one line from the tank to the carb assembly. as far as carb work we put the jetting, popoffs and needle and seat riva calls for.

  8. #8
    My son (mohawk man) jeffsntx's Avatar
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    Still using the acc. pumps, or were they disabled?

    You really need to be running at least the dual pick-ups if not the tripple.

  9. #9
    Yeah the carb pickups were left stock. Where can I get the dual or triple setup your talking about. I asked riva if they sd them stil and they said the dropped the line.

  10. #10
    My son (mohawk man) jeffsntx's Avatar
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    You can modify the stock pick-up to be a dual pick-up by doing what RDH said.

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