my friend has a 90cc sanyang farmers bike/super cub style bike. he really likes the way it looks, but complains that its always having engine problems no matter how many times he takes it to a mechanic. he’s considering getting rid of it and getting more of the standard looking floorboard scooter or moving up to a motorcyle.
i thought that maybe he could bore out and stroke the engine and suggested this to him as a way for him to keep the style that he likes.
a few questions:
Is this possible with a 90cc sanyang engine? If so how much would it cost and where could it be done well? Also, what would the displacement be afterwards?
If it’s not possible, could a new and potentially larger engine replace the current one?
Ulitmately, would he be spending less money replacing the engine than he would buying a 2nd hand KTR or Wolf?