I just bought this 350l and had removed the carb and cleaned it. The bike runs great. I havent had much of a chance to test ride it in the daylight. I noticed this weekend that under accell the thing leaves a trail of lingering smoke that kind of smells like burning oil. I know they smoke but it seems excessive. The engine idle great and runs good to. I was wondering if maybe its running slightly lean. ANy ideas on what to check would be great.