SBT Jetski Engines, Parts & Accessories

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  1. #1
    Joined
    Dec 2003
    From
    Raleigh, North Carolina
    Posts
    55

    Post

    I bought this ski from a friend. He got salt water into the engine and let it sit for a year. The ride plate and engine are terrible and I would like to find a complete engine with starter, carbs, flywheel etc. What are my options? What other engines will fit into this ski. I am having a hard time finding a 657X complete engine. I see others listed. What parts are different between the 650 and 657X?

    Thanks

    [ December 19, 2003, 10:06 AM: Message edited by: Ramtour2 ]

  2. #2
    Joined
    Mar 2003
    From
    SBT
    Posts
    21,545

    Post

    The differences are internal. If you can find a complete block, you can swap them, although you will lose about 5 HP if you put a standard 657 in there.
    SBT Tech Support is here to help with your problems.
    We try to answer each question quickly and accurately.
    Please do not use Private Messaging for Tech Support, use the forums.

  3. #3
    Joined
    Nov 2003
    From
    Glendora, CA
    Posts
    6,846

    Post

    The 657X deck height is different. The crankcase is thicker and stronger. The crankshaft is stronger. The magneto flywheel is different and not interchangable, as is the stator. The head is different.
    Bill O'Neal <br>
    WCM
    <a href="http://www.watercraftmagic.com"

  4. #4
    Joined
    Aug 2003
    Posts
    196

    Post

    sbt guys are not going to like this but i think there is a complete longblock on ebay. i think its around $400 right now. buyer beware though. i would get one from sbt to be safe.

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