Hi there, I need some help, I´ve just bought my self a xt 550 from a friend and it has a lot of work to do on it anyways I´ve got a problem with the clutch, I took it for a ride yesterday and noticed 1st and 2nd gear it doesn´t slip but as soon as I go into 3rd gear and open up it slips.. What could cause it to slip and what must I replace? Also another thing, the michanical adjustment \