In Reply to: Ammeter polarity posted by Charlie Rohlfing on September 12, 2017 at 16:51:06:
I started to respond with "the back side", then felt so guilty, had to go out in the rain and look at my 8N. Unfortunately, a big mud daubers nest is covering the whole back side of my ammeter. Even without that in the way, most of the wiring is cleverly concealed behind the tool box. I'm pretty sure the yellow wire from the solenoid goes to the ammeter terminal closest to the steering column, and the outboard terminal goes to the junction block. As others have said. Try it and if the gauge reads backwards, swap the wires.