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Thread: atc jet ski

  1. 09-13-2007, 03:03 PM #1
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    atc jet ski

    Well I just picked up a skidoo 800cc jet ski motor and I thinking about putting it in a 250r chasis. Anyone ever done this before. I am looking just for the drags at TF
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  2. 09-13-2007, 09:43 PM #2
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    That should go pretty quick!
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  3. 09-13-2007, 10:23 PM #3
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    how would this work? What are you doing for a drivetrain? how are you going to keep it cool?
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  4. 09-13-2007, 10:28 PM #4
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    yea man those jet ski motors need to be cooled allot more than a typical liquid cooled engine. so ive herd anyway. plus its a 800. those are some real scary motors on a sled. imagine a trike ? dam it will fly.
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!
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  5. 09-13-2007, 11:19 PM #5
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    well look at dales ET lol
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  6. 09-14-2007, 12:13 AM #6
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    Quote Originally Posted by team-red-rider View Post
    well look at dales ET lol
    true but dales is a 670 rotax. the 800 rotax/ski doo runs allot hotter. either way it will be a fast scary ride when its done.
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!
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  7. 09-14-2007, 08:45 AM #7
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    SHi da

    I guess thats why they call this shiz the Mad Scientist Lair.

    Jet ski engines are direct drive right off the crank. Getting the power distributed to the rear tires would take a genious. Cooling the engine wouldnt be hard, some kind of radiator feed would take care of that.
    Last edited by max; 09-14-2007 at 03:34 PM.
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  8. 09-14-2007, 01:33 PM #8
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    Why not a centrifugal clutch like on a sled?
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  9. 09-14-2007, 03:19 PM #9
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    thats what i would do. its easy and it works pretty good.
    down to parts because i no longer have a place to ride trikes.

    GIT IT RAAAGGGGG !!!!
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  10. 09-17-2007, 10:18 AM #10
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    Well as far as cooling the engine that will be the easiest part of it. The radiator will be taken off a sled and mounted were the r's already goes. The drive is going to be the tricky part. I will put up some pics as I go along.
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  11. 10-25-2007, 04:39 AM #11
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    sounds wierd and cool at the same time any updates?
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  12. 10-25-2007, 05:07 PM #12
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    but on a jet ski the engine uses a liquid cooled expansion chamber and the coolent runs threw passages around the exhaust port?
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  13. 10-30-2007, 01:32 AM #13
    tecatetrike
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    Quote Originally Posted by motoman110 View Post
    but on a jet ski the engine uses a liquid cooled expansion chamber and the coolent runs threw passages around the exhaust port?
    That's exactly right, The water escapes through the exhaust.... I don't know how you would get that to work? Probably better off using a snowmobile engine.
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  14. 10-30-2007, 08:50 PM #14
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    ya, maby keep the snowmobile engine in the snowmobile??? hahaha jk jk i have a friend that wants to put a 400 polaris liquid from a sled into his old 200s frame.... hes kinda crazy... and dumb lol
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  15. 10-31-2007, 12:24 AM #15
    tecatetrike
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    Quote Originally Posted by motoman110 View Post
    ya, maby keep the snowmobile engine in the snowmobile??? hahaha jk jk i have a friend that wants to put a 400 polaris liquid from a sled into his old 200s frame.... hes kinda crazy... and dumb lol
    400 in a 200s? What a retard, that thing would be a death trap!
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