The only way I was able to make both ammeter posts show hot was to wire it this way?? Ammeter shows a slight discharge when key on. I have cranked but not started it yet,too cold here. I guess my question is hot battery plus post is on the right,load is on the left as viewed from tractor front under the hood. On the gauge viewed from driver position,discharge side of ammeter is connected to the plus side of the start solenoid,charge side of the ammeter is connected to the ignition key switch and the "B" terminal of the voltage regulator. This is the opposite of what I would of expected. Anyone with insight or a picture of their working tractor wire setup would be appreciated. Thanks much!! I removed two wires the previous owner had installed that weren't in any pictures or supporting documents I had.
I found this page to be useful for installing ammeters in start/gen setups