I recently broke my ankle, so the tractor sat for 3 months. Went to start it and clutch was stuck, could force it in and out of first and second gear. Usually ( in the past ), when this happened I would run it for 30 min and the clutch would break loose, this time it has not. I have a manual ( not hydrostatic ). I also had not placed the little stick they supplied with the tractor in between the bottom of the floorboard and clutch lever. Any ideas ?