And to answer your question SamUK, yes, the longer it runs the worse it gets. Even at idle, there's some smoke, but hit the throttle a touch, and you'll kill every mosquito with a 5 mile radius of my house! And I greatly appreciate all the input and if I have to go through the trouble of tearing it down, she's goin down! No since when your that far in to not do it right. I've always been a firm believer in that and always thinking ahead, so yes, timing chain, clutches and all, unfortunately. I won't say that my cup runneth over with cash with all the tools, equipment and trailer issues this year, but for another $150-$200 for clutches and what nots, I'd be a fool not to. I just sold a 3 wheeler tje 1st of the year that I bought brand new in 83, and it ran like a dream, hated to, but health issues dictated it, and won't be doing any major trail riding or anything like that with the 300, just something to leave at duck camp for the season to get back and forth from the house to where I'm hunting that day, so got to have something to help cover the 6,540 acres!