New to the the forum and the 9N. Though handy with a wrench I have not work on a tractor before. I assume that the tractor has had a 12volt conversion. It has a GM alternator,12 volt battery, and I'm getting 12 volts at the coil. There is a ballast resistor that is in circuit from the ignition switch to the coil. It smokes slightly when i turn the ignition switch on.?? Is this normal?? Anyway I'm not getting fire from the coil. Getting fire to the coil though. Also, I looked at the wiring diagram @ the home page and the P2 wire from the alternator was wired direct to the coil.(providing 12v. to a 6v. coil) My thought is that the coil is obviously burned out.  SO, big question is can i just buy a 12v coil with an internal resistor and take out the in-line resistor?

One other question, in the wiring diagram what is the " terminal block" referring to?