I pulled the cylinder on hers today and it's scored pretty badly. I certainly wouldn't re-use it after examining it. I've done a good bit of reading on the forum, but I supposed I was just hoping for someone who had the same setup and could give me a magic bullet, LoL. I suppose my main concern is that when she rides it and hits the kick starter that it will go and not die on her at a stop light. Power is secondary but a concern as well.