I purchased 05 450x this thing is a tinker toy. overheat problems, engine sounds like cheap watch, head pipe blue all the way back to slip on. The guys I ride with says its jetting. The only things I have done is opened the exhaust a little and put on a white bro mix screw which hits the top of the starter. I NEED HELP. I bought Honda so I can ride not spend my whole life trying to fix a brand new bike.