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    Yamaha 70hp - 90hp Short Midsection Conversions / Purchase

    Hi Guys. I'm interested in building a short shaft 3 cylinder Yamaha. Does anyone know if a conversion / modification is possible? Alternatively, I'd be interested in purchasing one if any around???

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    Late 80s early 90s commercial engine had a 15 inch midsection, real rare.

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    There's a few good threads on here about 70 and 90 Yamahas.
    If you're going 70, do a search for 70 CES, if you're looking at a 90, sounds like the mariners from the 1980s are a good place to start for a short midsection.

    http://www.screamandfly.com/showthre...maha-powerhead
    http://www.screamandfly.com/showthre...ore-to-settle!

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    Cool

    Quote Originally Posted by charlie the wonder dog View Post
    There's a few good threads on here about 70 and 90 Yamahas.
    If you're going 70, do a search for 70 CES, if you're looking at a 90, sounds like the mariners from the 1980s are a good place to start for a short midsection.

    http://www.screamandfly.com/showthre...maha-powerhead
    http://www.screamandfly.com/showthre...ore-to-settle!

    There is some excellent info in those threads, to form a baseline. Thanks very much!!!

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