My 2001 runs great, and is a first kick starter about 9 times out of 10. I don't have any complaints, but ass-u-me that the head has not been redone. I'm considering doing the top end and the head, just so that I know that it is fresh. Even if I pulled it apart, I don't know what to look for to determine if it needs a valve job and new parts. I'm a pretty competent bike mechanic, so I will have no problems tearing everything down and putting it back together. I just don't know what to look for. Can I assume that if it starts right up and runs great that it is probably ok? Money is a bit tight to do it all right now anyway, but I'd 'like' to.