so the last few days ive noticed my exhaust has began to smoke a little, BUT ONLY AFTER RUNNING FOR A WHILE, say like 5 miles... its a white smoke, not very thick at all, but the thing that worries me is it kinda smells, almost like burning rubber or something of that nature. it has just over 300 miles on it and im scheduled to take it in on wed. for the 300 mile tune up... should i be ok to keep riding it til then? any ideas what may be causing the smell?