I'm redoing the wiring on my 1964 MF-50 diesel and I ordered a new ignition switch and it came unmarked. I looked at my old switch that is not original and is no help at all. Under the dash was a bird's nest of old and semi new wires. So I removed all wiring and rewiring the tractor. I know where wires go from one gauge to another and so on and I know which three wires go to the ignition switch but where do they hook up on the ignition switch? I though about just moving the wires around on the switch until I got it correct but don't want to risk burning up a new gauge or VR or new starter. I saw a video where someone had the same switch and which terminal was numbered but I don't know which wire goes to 1, 2 or 3. Any help would be great.