Hi, On my 1989 GS500 the clutch is recently slipping and I don't know how to adjust it. This all started to happen after I borrowed the bike to a young male friend :) I received a phone call late at night, the guy told me all of a sudden the engine stopped driving the rear wheel, it would rev freely but the front sprocket was not spinning. The bike was loaded onto a truck and ended up in a garage where I went to work on it with a friend. We found that there's a grub-screw on the left side of the bike behind a little cover, the grub screw had a locknut and a slot on it so that it could be turned into and away from the "engine" - this would adjust the clutch until the bike would move forward. Unfortunately after a lot of adjusting the bike would still slip at higher RPM, it would pull nicely at low RPM but once in the powerband it would begin to rev out. I should mention that while trying to adjust the clutch cable (before we found the grub screw) we actually damaged the clutch lever adjuster, I will look for a replacement today and install it but i'm not sure if this will end my problems. Would anyone like to provide some insights into the problem ? I was recently told that my clutch with "only" 41,000km should still have plenty of life left ! Thanks !