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  1. #1
    Happily Self-Employed WFO's Avatar
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    Side by side Yami vs Rotax

    Kinda gives an idea of the size difference between the Yam 1.8 and the Rotax
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  2. #2
    gtxscrider's Avatar
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    Thats a big difrence. No wonder that motor puts out so much power.

  3. #3

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    OK you are officaly my HERO!

  4. #4
    papafever's Avatar
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    gprxp done bring it

    There is a big difference in size but that little doo motor still brings power to the game.

  5. #5
    westy's Avatar
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    you going to be running the yammi or the doo rich?

  6. #6
    Old School Never Dies! codemanrose's Avatar
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    whichever you run, you can just send the other one to me. ok, sounds good.

  7. #7
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by westy View Post
    you going to be running the yammi or the doo rich?
    thats my Rotax and a customer's SHO motor

    we will be doing GPR conversions for both motors this winter

  8. #8
    Autosport's Avatar
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    The size difference looks mostly to be the accessories (remembering the 4tech doesn't have its super charger bolted up either in the photo) especially the large design of the Yamaha Exhaust manifold)

    If you stripped them both down to bare blocks, there wouldn't that much in them. Yamaha slightly larger obviously due being 4 cylinder compared to 3 cylinders. The Head of the Yamaha is also little larger due the twin cam design over the single cam of the 4-tech.

  9. #9
    Never say never KirkF350's Avatar
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    Quote Originally Posted by WFO View Post
    thats my Rotax and a customer's SHO motor

    we will be doing GPR conversions for both motors this winter
    Your Rotax?

  10. #10
    Happily Self-Employed WFO's Avatar
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    Quote Originally Posted by KirkF350 View Post
    Your Rotax?
    I know, I know

    it was a deal I couldnt pass up

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