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  1. #1
    skeletor88's Avatar
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    Jun 2007
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    1100 STX Di Hesitation

    Hi all. I have an 1100stxDi that seems to be suffering from problems at top end. After 5 to 10 minutes of running, the ski starts hesitating at approx 5800rpm. I have checked everything except the electronic brain.

    Is this a common issue? How can it be fixed?

    Any help would be greatly appreciated.
    [email protected]


  2. #2

    Join Date
    Apr 2007
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    Surprise, AZ via NorCal
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    More than likely, you have a hole in the rubber coupler which connects the exhaust to the waterbox. Your engine is being choked by exhaust gases, which is why it takes a few minutes for the problem to occur. Use a mirror to inspect the bottom and backside of the hose.

    Glen

    Quote Originally Posted by skeletor88 View Post
    Hi all. I have an 1100stxDi that seems to be suffering from problems at top end. After 5 to 10 minutes of running, the ski starts hesitating at approx 5800rpm. I have checked everything except the electronic brain.

    Is this a common issue? How can it be fixed?

    Any help would be greatly appreciated.
    [email protected]

  3. #3
    skeletor88's Avatar
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    Jun 2007
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    Gold Coast- Australia
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    Okay. I checked all exhaust connections and they are in good condition. it almost feels like the ignition (or something) is breaking down at high revs. Could it be a computer issue?

  4. #4
    SkiOnDaBrain
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    Aug 2007
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    Owasso, OK
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    I read something early that sounds similar to this. Check the throttle sensor and range.

  5. #5
    A friend of mine had a similar problem with his, it was a crank sensor, the wires got frayed.

  6. #6
    axgrider73's Avatar
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    Quote Originally Posted by GlenT View Post
    More than likely, you have a hole in the rubber coupler which connects the exhaust to the waterbox. Your engine is being choked by exhaust gases, which is why it takes a few minutes for the problem to occur. Use a mirror to inspect the bottom and backside of the hose.

    Glen
    An easy way to test for this ^^^^ is to run it with the seat off.

    Have you done a compression check?
    What do the plugs look like?
    Checked fuel pressure?

  7. #7
    got da fever! dzldogg's Avatar
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    Apr 2008
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    hey I got an 1100 stx-di and I seem to have the same problem...it breaks up and doesnt want to rev above like 5500 rpms on the water.If I take the seat off and run it seems normal however it doesnt seem to have the problem at all(seat on or off) when on the trailer.Very weird....the ski is new to me so we really havent gotten to know each other well yet.Any other ideas?Also, after pulling out of the water,I cracked open throttle and it hung up at about 4000rpms.Does this sound like an air leak or what?Where should I look for such a leak?? Any suggestions please

  8. #8
    It is either the stator,fouled plugs, or the emm. Check the stator output in AC volts but more than likely it is the EMM.

  9. #9
    got da fever! dzldogg's Avatar
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    hey GlennT youre right the exhaust hose did in fact have a split on the underside!! Thanx for the insight...still kinda concerned about the "runaway" rpms,tho...........

  10. #10

    1100 STX-DI with the same problem

    I have an 1100 STX-DI with the same problem

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