I just bought a 2005 C50 that had nothing wrong (except for an engine knock) that they tried to hide from me. I found th eissue and it should be a reasobable fix but now I am woried that someone had had the top end apart before. The bike has 30k on it I have found that the previous owner has changed out the #1 injecor, disconnected two wires from the bottom of the tank, and has pulled the heads off for an unknown reason. Are these bikes knownto have any issues at 30k, what is expected out of them? It also has VH pipes sounded good not sure how well it ran as I babied it onto a trailer before tearing it down.