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Old 05-02-2007 | 09:19 PM
  #130  
oldtimer2
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From: Mansfield, TX
Default RE: Echo BME twin
Hello ralph

the cylinder bore of the 23.6cc engine is 34.0mm. the bore of the 21.2 engine is 32.mm. The stroke for 23.6cc down to 21.2 is 26.0mm. Hope this helps.

George
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