Have you adjusted the cable at the lever and done the adjustment with the nut/bolt in the worm gear?The clutch lever doesn't release the rear wheel to spin freely. There is good action at the lever, and I've greased the cable and worm gear in the sprocket cover. I even have a small spacer for the clutch cable (outside the sprocket cover) to tighten it up. Gives me good tension at the hand lever, but still no effect on the rear wheel!!!
Are you missing either of the ball bearings in the clutch push rod assembly? There's the one shown on the parts diagrams and there should be one inside the worm gear assembly that's not shown on the diagrams.