I replaced it last year with a coil that was from a car. After plowing the driveway it was idling and just quit. No spark. Check for 12 volts at + and at - of coil. No volts at negative so the primary windings are open in the coil. The coil says use with an external resistor. Does an original coil come made to use 12 volts? I will probably go get a Chrysler resistor and put on the positive wire to the coil.
There is a capacitor on the neg side of the coil.