Thanks. From the diagram and checking the switch with a continuity/ohm tester I see the left position #1 is off, position #2 & #3 do the same thing headlights, instrument lights, and tail lamp. Position #4 gives the headlights, instrument lights, and an alternate wire to the tail light. I'm guessing position #4 will run a taillight or flassher but I'm not sure right now what my rear light is except that it has a switch on it. I'm not sure why the 2nd and 3rd positions do the same thing.
However the alternator and voltage regulator setups aren't the same. Mine must be a conversion of some sort.
Unlike the diagrams, my big alternator hot wire goes directly to the amp guage (which doesn't work). It has 3 wires coming off the voltage regulator and one wire coming of the coil that go through the harness and end up in that mess between the instrument panel and the starter solenoid. None of the diagrams are like that I know I've read on here about the hot going to the amp meter. The diagram has the hot from the alternator going to the starter.
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