Had my Husqvarana dealer install the Power Up kit and a new 15 tooth countershaft sprocket at the 600 mile service on my 2008 TE-510. Runs great but when I washed it today, I noticed the shift lever and shift shaft spline were being eaten alive by my chain. Seems the dealer put the countershaft sprocket on backwards. There is a beveled edge on 1 side of the sprocket that is supposed to go on the "inside" engine case side. My dealer installed it the wrong way and the chain rubbed against the shifter, shift shaft spline, and pinch bolt. They said they were sorry and would fix it but its a 2 hour drive to the dealer each way. Guess I have no choice but to take it back to them. So beware if you install a new countershaft sprocket and make sure it goes on the correct way.