I do not remember my math at all.. I have a engine that has a 2" bor and a 1.5" stroke... Is there some one that can remember how to do it and tell me what the cc of this engine is?

Thanks

Paul

i find there are calculators for everything on the net, i found this one that will give you your answer

http://www.nightrider.com/biketech/c...splacement.htm

Worked for me it is a 77cc engine.. Thanks

Paul

Displacement = ((bore x bore) x stroke) x .7854

Meassurement in inches will give you cubic inches. Divide by .061 to get cc's.

AV8TOR