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    779 mod crank

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    • Member since
      June 2010
    779 mod crank
    Posted by rotax man on Tuesday, April 26, 2011 10:33 PM

    got a 779 crank with 670 rods on it  , but the crank has been cut away where the rod pin is at so it looks just like a 670 throws but in a 780  verison , anybody know how does this and the reason why , does it create a better throw in the spin up of the engine or is it just for allowing more air in the engine at bottom dead centre or is it junk thanks for any input 

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