Thanks for all the help guys. I’m pretty organized on the mechanical side, but diagnosing the electrical system is pretty much a random walk for me, so all the experienced advice helps.

Below is a pic of the culprit: poorly made cutout relay points in the brand new voltage regulator.
Attachments
62C24DE0-BAE4-4FBC-AB70-5DF6006A4B09.jpeg (149.37 KB, 211 downloads)

Last edited by PapaDisco; 03/21/2021 6:55 PM. Reason: Clarity