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  1. #1

    Unhappy polaris 750 slt questions

    I'am new at this and hope I'am ask in the correct place. I just bought a 94 750 slt and it runs really rough at idle through half throttle then it smoths out.It was sitting for two years I was told. Then I finally did a compression check one at 120, 105, and rear one at 60. Any help and advice would be much appreciated. thank you


  2. #2
    axgrider73's Avatar
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    rko,

    Welcome to the Green Hulk!

    With those compression numbers, sounds like a rebuild is in order.

  3. #3
    Tony's Avatar
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    Quote Originally Posted by rko View Post
    Then I finally did a compression check one at 120, 105, and rear one at 60. Any help and advice would be much appreciated. thank you

    I bought a rebuild kit off Ebay from this guy. Nice kit and fast shipping. http://stores.ebay.com/JK-Jetski-and...meZL2222QQtZkm

    Plan on doing the fuel system too.

    It's a easy job with the help of GH members.

  4. #4

    Question 94 750 slt low compression

    Hi there new at this and would really appreciate any help or advice. I just purchased a 94 750 slt and it starts fine but idles really rough. continues to sound like it is missing until half throttle, then it smooths up. I just got home and checked the comppresion front cylinder @ 120 , 105, and rear one @ 60. Have never had a pwc before, is there more to these or do they need reringed like dirt bikes? any help appreciated.

    thank you

  5. #5
    ph2ocraft's Avatar
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    RKO, WELCOME to the Green Hulk Forums!!
    FOG the engine and then;
    Pull the head domes and have a look see.
    Can you post us a picture.
    To answer your question you can do a clean up and rings if they ar within tolerance. I'm curious as to why you lost compression.

  6. #6
    Yes i can post some pics when I get it open. I'am not famillar with the term FOG. thank you for your help

  7. #7
    ph2ocraft's Avatar
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    When you shut down your engine for any length of time you leave it exposed the water vapor, droplets etc. To protect the crank and all moving parts you FOG the engine.

    It's a simple solution of fogging oil you run through the carbs so that the engine ingests and protects all metal parts within the engine.
    It's sold at most marine shops.

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