Rance,
I had the clutch stick on my tractor. It is a 26 Hp. Diesel with a loader on it. I freed the clutch by removing the access plate and spraying it with WD40 while it was running in neutral. Then I drove the bucket into a stump with the clutch depressed. It popped loose quickly. I know that it defies logic to "lubricate the clutch" but it worked. (I got that solution from one of the tractor forums out here in cyber space)
