Generator runs fine, but no electricity in coach

I can hope there is a responsible You Tube tutorial about how to use your meter. Do not guess.

Also, I highly recommend using nitrile mechanic's gloves when working around live circuits. They will protect against 120vac shock if dry.

Also folks with Pacemakers should not work on generators. The reality is not a failure of the Pacemaker. It's vulnerability is corrupted memory that can erroneously show fibrillation, Bradycardia, or even Infarction when your cardiologist retrieves data.