It is amazing how many older KDX200s are still out there. I must say I just love these bikes and I hope to see them around for a long time to come. My son and I recently sold ours (he just got too fast for it). We had a 1986 KDX200 that my son Shawn raced in local hare scrambles and motocross. When we bought it there had already been some engine work done. It had a steel sleeve installed and a Wiseco piston fitted. The bike ran poorly when we got it but we were able sort out the problems and it was a great bike for him. I installed Boyesen Power Reeds, UNI air filter, punched it to 67mm with Wiseco piston kit, did some port '''clean up" work, DG headpipe and silencer, rebuilt and resealed suspension at both ends, top of the line rear alloy sprocket and RK520sho X-W ring chain. The trickest upgrade was a 19" rear wheel and disc brake assembly. The bike was awesome! It turned a few heads at the motocross track, especially when he would pull a hole shot and leave all those newer mx bikes behind. For motocross the engine was up to the task but the suspension was the weak link. In the hare scrambles he ran A class and did very well with it (best finish... 2nd..). The DG exhaust system made a GREAT improvement in the bike. We were very happy with the bike and even bought up a whole bunch of spares. A local Gas Gas dealer offered Shawn a ride on a 02 EC200. and the KDX200 was put away. The speed he was going on it was just too hard on the poor bike. This is not meant to say the bike was weak just 16 year old suspension can only be asked to do so much. Anyway the Gas Gas ride came along just in time as Shawn soon moved to Junior 250 in motocross and would be required to jump a little harder than the KDX could handle. He now is riding a 250 'crosser in both the motocross and hare scramles (we have a large tank, fly wheel weight and FMF gnarly pipe for the hare scrambles and put most of the stock stuff back on for mx). He is still remembered for the KDX though as just this weekend at the motocross track several people walked up to us and asked about the hop up stuff we did to the old '86 KDX200. The fellow who bought the bike from us just wanted it for getting to and from fishing holes and had me remove most of the performance items before he would take it. Our spares and hop up stuff are listed in the classifieds section (this is not a "plug" ..just wanted to let you know we have some stuff if you need it ). I miss the bike already...should have kept it for when I get the urge to ride. Ben