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  1. #1

    Rush expert advice needed! GP1300R Runaway?

    Hi all!

    I'm going to test tomorrow and most probably buy a 2004 GP1300R.

    But it seems to have a similar behavior of a lean runaway!?!? Is that possible on an EFI ski?
    When started at the trailer the engine starts to rev up really high without touching the throttle.
    No mods, Is a completely stock ski.

    The owner says that a mechanic advice him to replace the wiring that comes from the front of the ski to the electric box.
    That doesn't make any sense to me, but I dont know anything about efi GPR I have always had carbed GPRs


  2. #2
    mudslanger's Avatar
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    That doesn't sound wright. have you put it in the water and tried cranking it wile still on the trailer.

  3. #3
    Not yet, Ill test tomorrow. Only saw it running on the trailer at his house

  4. #4
    Banned User
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    Revs should be steady even more on an efi ski

  5. #5
    It accelerates by itself as if it was on full throttle. I have seen it on carbed engines and I have read that it happens with old fuel (dieseling) or an air leak.

    I think on an EFI ski maybe is related to a sensor?

    I also noticed that when the engine turns off , there is still something that sounds running for like 15-20 seconds, I dont know if that is normal, is that the fuel pump?

  6. #6
    KamikazeGPR's Avatar
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    same thing happened on my 03 gp1300. the throttle cable corroded and stuck open. There is a factory recall on all 03 to 08 gp1300's. they will replace your throttle cable for free. doesn't matter if you're the original owner. there is a post in the sticky section about it.

    http://www.greenhulk.net/forums/showthread.php?t=54289

  7. #7
    Very interesting! Thanks for the info

  8. #8
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by chris1200 View Post
    It accelerates by itself as if it was on full throttle. I have seen it on carbed engines and I have read that it happens with old fuel (dieseling) or an air leak.

    I think on an EFI ski maybe is related to a sensor?

    I also noticed that when the engine turns off , there is still something that sounds running for like 15-20 seconds, I don't know if that is normal, is that the fuel pump?
    when you turn the engine off, there is bilge pump that stays running for a few, then it shuts off. regarding the acceleration, it sounds like air leak, if the throttle cable is stuck open like that, it will not star.

  9. #9
    It starts low , then it Gradually goes up

  10. #10
    powerstroke specialist mikegp's Avatar
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    Quote Originally Posted by chris1200 View Post
    It starts low , then it Gradually goes up
    it definitely sounds like air leak. it can damage the engine real fast. it could be a few things.

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