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  1. #1

    Question need help rpms out of wack

    I have 07 gtx it is not supercharged. It will run for while at 3500rpm then shoot up to 7800 max rpm n then right away drop back down to 3500rpm. It does this the entire time iam rideing it. Took to dealer they said had no codes being thrown. Does anybody have any ideas or has this happen to you? thanks for looking.


  2. #2
    Mod less, ride more! troyheb's Avatar
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    I always believe in starting with the easy stuff first. Change your spark plugs and lets go from there.
    Also has the ski been sitting for awhile?

  3. #3
    Everthing louder than everything else! sHALlow's Avatar
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    Quote Originally Posted by troyheb View Post
    I always believe in starting with the easy stuff first. Change your spark plugs and lets go from there.
    Also has the ski been sitting for awhile?
    +1
    plugs, fuel, maybe coil pack on its way out. how does it idle? smooth or rough

  4. #4
    No been riding all summer just started last week will have to try plugs tho. Hooked up to brp computer and tested coils and fuel pump and pressure relife valves everything check out ok?

  5. #5
    oh yea forgot it does idle smoothly

  6. #6
    So you're idling and it's going to 7800 rpm (from what you've wrote), or at partial throttle, or at full throttle?

    If this is at full throttle, it sounds like the engine may not be getting fuel. A cheap check is to install an inline fuel pressure gauge, and watch it as you ride( should be constant 60psi for my ski)

    If fuel pump is your issue(this was my problem on an 07 gtx ltd) this is not a very hard or too expensive fix

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