off the clutch? I just purchased a 1993 Kawasaki Ninja zx6, and it ran fine for a day. Then the next day I put new oil in it, and now the clutch is slipping. When i let off the clutch, the bike doesn't move, all the way up to 1200RPM's. I don't know what to do! I didn't use synthetic oil, I used Kawasaki 20W-50 motor oil, as was recommended. It won't go anywhere now! Help!