1995 Kawaski 750 STS jet ski bogs down at full throttle
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  1. #1
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    1995 Kawaski 750 STS jet ski bogs down at full throttle

    I have a 1995 Kawaski 750 STS jet ski. It starts quickly and idles smooth. But when giving throttle above idle, jet ski bogs down and you have to return to minimal throttle to make it go. It has new plugs, but shows signs of fouling. This bogging down started suddenly. Thanks in advance for any suggestions!

  2. #2
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: 1995 Kawaski 750 STS jet ski bogs down at full throttle

    Is the engine running ok, but the ski isn't moving?



    Bill M.
    Horsepower == Speed, RPM != Speed



  3. #3
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    Re: 1995 Kawaski 750 STS jet ski bogs down at full throttle

    It will always come back to idle and run fine. And you can gradually build speed up by just slow throttle, not much over 1/4 throttle, but it doesn't die, just bogs down

  4. #4
    PWCToday.com Is My Home Away From Home wmazz's Avatar
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    Re: 1995 Kawaski 750 STS jet ski bogs down at full throttle

    You need to inspect the internal carburetor filters, and for water inside
    the float chambers.

    I would carefully remove the carbs and disassemble them on a metal bench,
    with no rags. A large oil drain pan would be ok. But you want to see water
    drops if they seep out of the carbs, that is why I don't recommend disassembling
    the carbs on an old towel or rags.

    Purchase new composite carb base gaskets, for reassembly, and you will
    avoid some common problems.


    Bill M.
    Horsepower == Speed, RPM != Speed



  5. #5
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    Re: 1995 Kawaski 750 STS jet ski bogs down at full throttle

    Thank you, sounds like some good advice.

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