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1985 90hp overtemp alarm

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  • 1985 90hp overtemp alarm

    last weekend while out fishing, I was coming back to ramp and the horn went off and the rpm's dropped to about 2000, was able to idle back the last 1ooyards or so back to ramp, yes had water coming out of pee hole, pulled boat out and found my water intake screens were clogged with muck, cleaned it out and when I used it today it will only get up to 2000rpm's at wot, I did check the water pump and it is fine, could some stuff have gotten in and clogged the thermostat? not sure where to start on this one

  • #2
    man was up with these 90's. i just posted this morning about something similar to your condition.
    my motor revs fine in nuatral but uunder load it was only reving 2000 rpm's. i do not have anything stuck in the water pump. and my motor has not overheated. it has happened twice now. it happens and then after a few minutes it clears up and purs like a kitten. good luck hope we can find an answer to our problem!
    3130

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