also if you're using a ballast resistor I assume you have a 12V system, in which case you need to bypass the resistor when the starter is in action - normally with the 12V starter, if you've swapped to that, a wire from the side terminal of the 'box' atop the starter to the output side of the resistor would do that ... that wire needs to go thru the ignition switch as well, so the engine can't start without the key on .... if you're still using the 6V starter you'll have to rig another setup to accomplish the bypassing so the coil gets full voltage when cranking
Bill
