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Old 09-14-2008 | 10:09 PM
  #47  
billzair
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Default RE: Lets do a 40cc ryobi conversion!
captin,
yes they do.....in fact,the piston has a "channel" cut into each side of it. I dont know weather to classify this engine as a "piston port engine " or what.[sm=72_72.gif]
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