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  1. #1

    To run a thermostat or not ???

    Ok Virage TX triple piped does it need a thermo. or not... ALso stock pro 1200 does it need a thermo. ?? What does the thermo. really do ?


  2. #2
    Legend in my own mind Sirhc7897's Avatar
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    Unless you're riding in really cold water I say no...All it does is close the water out (or drastically reduce flow) until the motor gets up to operating temp...It's not critical on a 2 stroke (provided you give it enough time to warm up right before you hammer it) like it is on a 4 stroke...

  3. #3
    SeaLion's Avatar
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    I agree. If you ride in fall/winter colder water then a thermo is good to have in? Otherwise ditch in the warmer riding.

  4. #4
    ph2ocraft's Avatar
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    I don't have a thermostat in any PWC I own, although I am in California we do have saome damn chilly rides during the Winter. By the time you get out of the 5 zone it's warmed enough for a little cruising.

  5. #5
    Connecticut CrazyA's Avatar
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    Thermos = more trouble than they're worth! Not needed!

  6. #6
    fx160's Avatar
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    i will go against the grain and say
    if it came standard with a thermostat then it needs it
    it not only stops flow when the motor is cold but slows the flow when the motor is warm so it can take all the heat out properly

    kev

  7. #7
    Legend in my own mind Sirhc7897's Avatar
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    Quote Originally Posted by fx160
    i will go against the grain and say
    if it came standard with a thermostat then it needs it
    it not only stops flow when the motor is cold but slows the flow when the motor is warm so it can take all the heat out properly

    kev
    But that's just it...on the domestic Polaris motors not even Polaris could figure out which way they wanted to go from the factory...some years have the thermostats and then the exact same ski with the exact same motor has no thermostat from the factory in another model year...

    Quite a few of us have run for years without thermostats...

    The only other possible area of difference would possibly be on a injected ski...I know they run considerably hotter than the carb'd models so it might be neccessary there to keep the operating temps in the right range?

  8. #8
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
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    t-stat

    on the triple piped ski.it more or less won't work,the t-stat works in conjunction with a pop off valve(spring loaded)because of the way the water is routed thru the 6 way manifold,more water will be forced thru the pipes instaed of the motor until the t-stat opens up,then its just another restriction to water flow in the system on the motor side,not good unless your riding in very cold water.on the stock pro it really doesn't matter except that the pilot and idle mixture was setup for a non t-stat setup,by the way yours a 2000?? then its got the 70 pilots and should be switched to 65's

  9. #9

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    i dont run one in my pro 785 as the HSP heads dont have provisions for it. i usually dont ride my ski in water less than 50 degrees because it doesnt have a t stat in it, plus if the water is that cold usually the air is too!!!!

  10. #10
    ph2ocraft's Avatar
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    Also remember on the triple piper you will be able to regulate the temperature by installing restrictors inbetween the head cover and pissers.

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