Quote:
Originally Posted by Weldangrind
Welcome!
Fundamentally, your new cylinder isn't actually a 250 kit, in the same way an SR250 Yamaha is actually around 230. There isn't a 250 combo for a CG motor that I'm aware of, unless you want to go liquid cooled. The three-wheeled trucks from China often use that setup, which gets near 270cc, IIRC.
Is the wristpin diameter the same on your new cylinder as on the XR200? Is it the same as your China motor?
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This motor is advertised with the same bore and stroke as a crf230. Which makes it a 223. (65.5 x 66.2 mm bore x stroke) Would need to measure to confirm.
This cylinder is sleeved at 69mm which should (math be right) make 247cc motor. I *thought* that this was a CB based unit and not a CG based???
