This post brought up a whole lot of nightmares I had with my son's 2006 50SX LOL! Those are the most finiky clutches i've ever dealt with. His last season racing it he went through 3 complete KTM clutches and 2 KTM drums, stupid expensive but he won a championship and got a hoodie lol. I didn't know of any better options than the oem KTM washers back then either. I believe Tomar made a billet complete replacement clutch that was waaaaay better than the KTM clutch if you can find one of those.