Re: Curious about the engine, :question:
A bit of insight. Today I helped a neighbor install a CG kit on his bike. He got it off ebay. He was totally ignorant of these things so he just bought one. I looked it over closely and it turned out to be a GT5. Was actually a pretty nice kit with the exception of a junk chain.
Point is this was the smoothest, best running out of the box kit I have seen of the few(6) I have had hands on. Maybe he got lucky. I hope not because my box o engine is a GT5.