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  1. #1

    check engine light :S

    after running about 15 min, the engine started to lose a little compression and it wouldent go fine under 5000rpm ! at full speed it went fine and suddelly, when running at about 5 mph the check engine light came on :S i felt that the engine was a little hot and when i opened the flush hose the water came out and the warning was gone !
    ofcours it was the thermostat i thought, and took it out and it was jamed and the o-ring was destroyd :P fixed and cleaned it, and it opened in boiling water. reinstaled it and went out today... after 2 min at 2000rpm the warning light came back i have a thermostat on the way from US but have to wait a week+-

    so ?!.. can it be that the waterhose behind the thermostat is blocked ? it flushes fine, and water is coming out where it should. Ore mabye the thermostat is jamed again ore is not opening complitly ?

    thank you for any answer

    edit:if the impeller is nonfunction, will there be water coming out the fluch-hole ? or is it just the water pressure in the cooling-hose that will sink ?

  2. #2

    Join Date
    Sep 2009
    St. Louis, MO
    how about posting what ski you have in your signature, it will help us determine what else could be going on besides the thermostat.

    If it were me I wouldn't run it till I replaced the thermostat.

  3. #3
    it is a polaris msx 03

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