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  1. #1

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    NEW 04 ULTRA 150 Projects

    Hi All, I'm starting a New project I just bought a 04 ULTRA 150 with No Motor. I'm looking to really just get it up and running the soon the better. Anything that you can help me with would be greatly appreciated.

    Here is a picture of my basket case.
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  2. #2
    btldigger's Avatar
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    Welcome to green hulk.

    I would be watching ebay, craigslist and the classifieds here and at ultra150.com. Its hard to tell from the pic just what all you have. Do you have the carbs and electronics boxes any of the engine parts? Do you happen to know what happend to the motor that was in it? There have been quite a few getting parted out lately but the engine cases are going to be the hardest thing to find.

  3. #3
    I'M BAAAAAAAACK wrenchedexcess's Avatar
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    It will take some work to put together a 1200 from what you (don't) have. I am currently doing the same thing more or less but putting it in a different hull (900STX). I found the parts to practically make a complete motor solely on ebay. When you look for parts on there, search "ultra 150" or "stx-r". Both models had the same 1200cc, triple-cylinder, two-stroke engine.

    Check out the thread chronicling my quest to build the motor from scratch: http://www.greenhulk.net/forums/showthread.php?t=88962

  4. #4

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    Thanks for the info...I don't know what happen to the motor. I have most everything but the short block and flywheel.

    Please keep the help coming!!!!

    thanks again,

  5. #5

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    update!!!

    Update!!!!

    I found a motor out of a 2005 Ultra 150 with less than 20 hours on it. I thought the front cylinder was just cooked. I was wrong I don't know what happened but it looks like the crank is shot. There is only one thrust washer on it and lots of side to side play. There is marks on Rod (if you can see them in the pictures) I guess from the thrust washer. Any in put???? What do I do know????

    I took a picture of one of the good cylinders. So you can see that it didn't have much time on the motor.
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  6. #6
    Jmski333's Avatar
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    Im going through the same rebuild as you. Is there a hole in the bottom case of your motor? With my crank loosing a thrust washer and a crank bearing my rod went through my case.

    Looks like you motor was running super hot probably from a clogged cooling system. Your looking at about $900 to rebuild that motor the cheap way, a Sbt rebuilt crank and a wsm rebuild kit. if you have a cracked case or need a new head than your lookin at a few hundred more.

    Here is the tread on my motor, there is a lot of good advice on there.

    http://ultra150.yuku.com/topic/3259?page=1

  7. #7
    btldigger's Avatar
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    What does the bad cylinder look like? If it just has aluminum stuck on it then that could be cleaned as long as the coating isnt chipped or scared it would be ok. At worst you can send it to us chrome for a replate. Sbt may be your best bet on a crank.

  8. #8

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    Cylinder is done!!! Everything else looks like new even the crank except for the thrust washer missing.

    Are the SBT cranks good? This crank looks so good I hate using it as a core.

  9. #9
    btldigger's Avatar
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    You may want to check into having that crank rebuilt. I would check out who the yamaha guys use. Is the guy you bought your motor from selling any other parts off that boat?

  10. #10

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    Quote Originally Posted by btldigger View Post
    You may want to check into having that crank rebuilt. I would check out who the yamaha guys use. Is the guy you bought your motor from selling any other parts off that boat?
    Who's the yamaha guys?

    No other parts at this time. I'm working on buying the whole ski.

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