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  1. #1

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    power valve issue, i think?

    Ok, so im out riding today with my 2001 GP1200R, and i have a bunch of my including 150 psi head, and other stuff. My ski is gps at 68.5 mph. well today, i was out and it was like one of my power valves wasnt openin up all the way, and then all of the sudden it would kick in. so i would be at like 60, and then all of the sudden, bam 68 mph. but sometimes it wont run past 60. so i would stop, restart my engine, and then it would go to 68. is it one of my power valves?


  2. #2
    There is no VooDoo like BadVooDoo NeVerMind's Avatar
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    More info on your other mods would be helpful... Cat Con? Wave-eaters?

  3. #3

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    well, i have a d plate, riva ride plate, intake grated and impeller, along with a 150 psi head.

  4. #4
    mrbtd's Avatar
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    Check the PV couplers and listen for the motor cycling. There is only one point that moves all three.

    Be damn sure its not water that is making it break up like that.

  5. #5

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    ive checked all three with the colvers off and watched them cycle properly. how could water effect them?

  6. #6
    mrbtd's Avatar
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    Water doesnt bother the valves water in the intake/cylidners will make it behave like that.

  7. #7
    To thoroughly check the power valves; Place a screwdriver or long allen wrench into the PV cavity along side the stem and feel for movement of the 'paddle" up and down when they cycle.

    By just looking at the arms and stems move you may overlook a broken paddle

    WaveEaterProducts.com

  8. #8

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    ok well should i just take the power valves out to do a full inspection? do i have to take the cylinder head out to remove them, or can i take them out through the power valve covers? o and i hope that water isnt getting into the cylinders

  9. #9
    There is no VooDoo like BadVooDoo NeVerMind's Avatar
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    If you have the ability... Take them out. It's not hard and it will give you the opportunity to clean them up. They come out the top and you don't have to pull the head or cylinder.

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