Cylinder Boring!

Discussion in '2-Stroke Engines' started by AlexRSS8, Mar 25, 2009.

  1. AlexRSS8

    AlexRSS8 Member

    I wanna bore the cylinder on my 2 stroke American Starpower or Spitfire or whatever its called (new clutch cover).

    Now i've read about cylinder heads having certain coating which means no go zone, so i wanted to check with you guys, when opening the block up should i be looking for something (like chrome plating???:ack2:)?.

    KTHNX in advance

  2. arceeguy

    arceeguy Active Member

    You won't be boring one of these engines oversize. The castings are too thin to allow it, and as you pointed out, the bore is chrome plated so you'd have to re-plate the bore. And on top of it all, you'd need an oversized piston that weighed the same as the original. (to maintain balance) The machine shop work alone would cost more than the engine kit itself.

    If you want more cc's, I would just buy the largest displacement kit that they offer. (66cc or "80cc")