After troubleshooting with the help of the diagrams, I found that with power on the remote start terminal, the generator was not attempting to start. Led me to believe there was an internal issue with the board, as Marshall had suggested above. It was a Kassec 90153-12V board from the factory. Got a replacement ordered from Flight Systems, and all tested and working today. Thanks again for all the help! MarshallPowerGen was a huge help with the diagrams!