Clutch won't fully engage when hot

[tommyardin]

One thing that might be worth doing is to draw the clutch push rod out of its location, just in front of the sprocket (After removing the sprocket cover) and wipe it over with some grease before pushing back, also make sure the clutch mechanism return spring is still in place as the are quite a fine wire gauge spring and can snap where the hook onto the mechanism.
Also make sure the ball bearing is in place in the clutch mechanism.