I mentiond back on a past thread about this bike I just bought. It has Cobra Drag Pipes and the exhaust was discolored. Sugar Bear replied it might be runnin lean and not properley jetted. Well he may be right cause you have to choke this thing to start it and you can smell the exhaust. I am a gonna clean the carbs next week and I bought a Cobra rejet kit just in case I need it. It has 3,800 miles on it and I heard to reset the valves at 4000 miles. Im gonna have the carbs off so I might as well do it.