So I hooked up my spare compressor and it seems my unloader valve is not working.
So for the reason it burnt the belt I think has been found.
I'm going to see if I can bowwor a clamp meter. Only have regular probe meter.
I will check the capacitors.
I woke up to a smoke alarm in my shop and found my compressor belt caught fire in the morning.
The motor was free spinning by the time I got to it and threw the main switch.
I cleaned the pulley and put on a new belt with more tension this time and now when it runs it starts just fine but...