went through the same trouble when I bought mine te610 6months ago. Look at Halls cycle in Ill. called and talked to them good info. This is a great machine seemed to be set up with all the extras already. I have been told by the dealer a pipe and jet kit is the only thing you would ever want to upgade but it´s big $$$. I raced mx for years and this is about the only true 50/50(on-off road) bike I have seen.