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Thread: Thermostat?

  1. #1

    Thermostat?

    Could i run my pwc with no THERMOSTAT in a polaris sl 750?


  2. #2
    Click avatar for tech links/info, donation request K447's Avatar
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    This has been covered a number of times in previous threads.

    Search is your friend.

    Unless the water you ride in is very cold, you can remove the thermostat.

    If you reverse flush your engine, and the thermostat is missing, you will need to clamp off the water exit hose to force the water to back flow through the engine.

  3. #3
    ok. on 2.15 in the polaris book it has a photo of what way the THERMOSTAT is supposed to go in. i can't tell what way it goes in. anyone know what way it goes in?

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by james1 View Post
    ok. on 2.15 in the polaris book it has a photo of what way the THERMOSTAT is supposed to go in. i can't tell what way it goes in. anyone know what way it goes in?
    Have you looked at the online parts diagram?

  5. #5
    yes that dont help, it is not a good photo

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    Click avatar for tech links/info, donation request K447's Avatar
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    Quote Originally Posted by james1 View Post
    yes that don't help, it is not a good photo
    Does this diagram help?

    Thermostats normally mount with the taller portion of the body facing towards the water flow from the engine. On the Polaris engines, the longer portion is mounted upwards.

    The body of the thermostat is exposed to the hot water from the engine, and then opens the valve as the water surrounding the body gets hotter.
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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  7. #7
    Neal Van's Avatar
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    I took mine out my skis run fine i don't have to worry about the thermostats sicking closed

  8. #8
    if i take out the thermostat then the water just goes through all the time instead of waiting for the thermostat to open then exit. so if the water goes through all the time wouldnt that be better

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  10. #10
    Lake Mead Bum & BTLS Mark starflight's Avatar
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    You will need to let the engine warm up a bit before you go wot. No real advantage by not having the t'stat, but you can rest assured that you won't have any problems with it sticking closed if it's not there.

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