I'm new to this site. My Dad died before finishing our tractor and I need help. I have 1948 6-V positive ground Farmall McCormick. I have a couple of questions if you can help me. Does the kill switch wire go to the magneto and if so, is there any other wires that goes to the kill switch. I put a new amp meter in my tractor this one has a small light in the back of it. How do I wire this in to my tractor. Thank you for your help.