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Old 06-26-2013, 10:13 PM
bigbutterbean bigbutterbean is offline
Join Date: Jan 2011
Location: Lebanon, PA
Posts: 2,420
Default Re: Identifying an engine

Is it possible to compare it to an engine that you do know the displacement of? Even on the outside, a 66cc cylinder looks bigger than a 49cc. If you put it beside an engine you do know the size of, you may be able to tell by looking if it is the same or different from the other engine.
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