Trimming down a cylinder for a shorter Yamaha(JOG) conrod.

Discussion in 'Performance Mods' started by lazylightning@mail.r, Dec 27, 2015.

  1. lazylightning@mail.r

    lazylightning@mail.r Active Member

    I use a conrod from the Yamaha JOG instead of the factory conrod and bearings. It requires that the piston skirts be trimmed in the middle so they don't hit the crankshaft. The cylider needs to be trimmed down 5mm also. I added some meat first to give me the opportunity to widen the transfer passages.
     

    Attached Files:


  2. lazylightning@mail.r

    lazylightning@mail.r Active Member

    more photos
     

    Attached Files:

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