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Old 03-24-2014, 03:00 AM
fischer550 fischer550 is offline
Motorized Bicycle Elite Member
Join Date: Mar 2014
Location: Fort Collins, CO
Posts: 233
Default How to tell the difference between 49 and 66cc?

Hey guys, I just got a motorized bike engine and I do not know if it is 49 or 66cc. Is there a way I can tell without taking it apart (head nut size for instance)? Also, I heard that to take the engine head off, I need a tool called a torque wrench. Is this right, or can I use a regular socket wrench? Thanks
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