Okay gentlemen, I have an issue that I need to get resolved, I bought a 600 Ford tractor that was converted to a 12 volt system and I need some help. The tractor has trouble cutting off after it has been ran awhile, sounds like it is trying to start after the key is cut off. I have been told that it may be due to the 12 volt conversion done on it. I have researched the entire web and cannot find a wiring diagram for the 600 hundred, can find plenty on the N series. can someone help me?