i have a 2185 that would not start thru the key but would by jumping the starter.i found that the wires on the switch were bad fixed those . it started but when i released the brake pedal the tractor would stall.tried to bypass the brake pedal switch,now it wont do anything. the pto wont even click now.is there a way to check the pto switch? relay switch, the igition switch appears too check out ok.if i take the wires off the pto switch and jump the two orange wires it will start but still no pto snapping? what am i doing wrong thanks for your help