[acecycleins]

On the neck on the right side. All VIN numbers are stamped in the same location since they adopted the 17 digit system. It's also on the downtube of the right side on the manufaturer label of bike discription. If you don't see it in one of those two locations then the frame is not original.

 

[acecycleins]

Is the bike exclusive to China/Asia market? If so, then the frame number you are looking at is probably correct. The motor is a common Honda setup. Other asian manufaturers have been coping the motor for decades. You sould not have problems sourcing parts, even if they are not OEM they will probably match up to OEM fine- so use them.