Some Kymcos use motors from various Chinese makers, like I'm running a gy6 motor in my Kymco Sento after grenading my original Kymco engine. Chinese parts are MUCH cheaper than Kymco parts, but you have to do your research and the info is hard to find. In my case, I finally took a guess and ordered a complete gy6 motor online, and it fit with only minor fiddling. Saved perhaps $1000, so it was worth it.
