Thread: engine sizes?
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Old 01-17-2010, 09:18 AM
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K.i.p K.i.p is offline
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Default Re: engine sizes?

Ignore the sticker, I was confused in the same way. It sounds like you have the smaller block going by the stud size and bore diameter. If you already know the diameter, next measure the stroke and calculate cubic centimeters. I did this to remove all self doubt and arrived at 47 point something which varified I had the 48cc engine even though the sticker stated 68.5

68cc-bore diameter 47mm.

48cc-bore diameter 40mm.
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