well here we go.... tire of fishing from jetties, beaches and any other areas from shore. got a free boat from a guy. YUP its free and ugly. the boat i can fix and the 1965 mercury 90HP runs. BUT the mercontrol lever will not reverse. foward no issues just the reverse. new to fixing control boxes and BOAT engines, but i learn easy when working hands on. Any ideas why the lever will not reverse? thanks for any and all help.