Well I'm still dealing with a issue on my 07 which has only 21 hours on it,started puffing blue/white smoke the 2nd day I brought it home with less tha a hour on it.I called the dealer and he said to bring it in which I did and it did not puff a bit after he rode it for about 30 minutes.It will not do it cold,only when it's hot.I thought it was the break-in oil but I changed it at the 20hr mark 4 days ago and adjusted the valves but after a 20 minute ride today it started back,I know it does it while I'm riding "hard to look back to see" but if I stop pull in the clutch and rev it a bit I notice a hesitation and a puff ,I'm thinking it's in the carb but seems like it would do it cold as well.I called the dealer today and he wants me to bring it in so they can check it,knowing my luck they will say it's fine again?????