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  1. #1

    1997 Polaris Pro 785 over heating propblem

    hi guys new on here but have been following for awhaile. I have bout a 1997 polaris 785 pro. I'm haveing problems with it getting to hot can ride for about 10 min then it shuts off. I can restart it for a min and it will do it again. I have changed all the fuel lines and water lines took out the termotast and the pop off valve and it is worse. any help for me out there?


  2. #2

    Join Date
    Jul 2015
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    Have you done the water line rerouting per Watcon? I'd assume somewhere you have a blockage. With the amount of flow and water temp my pro never gets above a warm state. I could sit my hand on it all day. You are getting good flow through the pissers and flow out of the back of the ski?

  3. #3
    getting great flow threw the pissers how do i check out the back of the ski

  4. #4
    where do i find the water rerouting cart?

  5. #5

    Join Date
    Jul 2015
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    Addison, IL
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    just google watcon pro 785 water routing im sure it will come up. if you have it set up i would run the ski out of water with a garden hose to see the flow of water coming out the back of ski. only think I can think is that you are getting a blockage somewhere in the head/jugs for it to cause a heating issue.

  6. #6
    Connecticut CrazyA's Avatar
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    Have you visually inspected the piston tops or Done a compression test? You may be seizing a cylinder or two and that's why it is shutting off. Then when you feel the motor, of course it's going to be smoking hot.

  7. #7
    i have done a compression front 118 middle 120 pto 118. its low but even.

  8. #8
    have not taken the head off yet.

  9. #9
    took out the exhaust to see if there was any blockage don't see any the motor is not as hot as the exhaust but is worm

  10. #10
    the front waterbox is smokeing hot

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