just got the machine running. motor was replaced a few years ago and has an external capacitor. if i removed the belt, the motor ran. even the slightest load on the belt and the motor tried to start but did not run.
this seemed to be a capacitor problem. i found one of the 2 wires to the capacitor did not have a good connection inside the wire plug. installed a new plug with a soldered rather than crimp connection, problem solved. glad i did not order a new motor or call a service tech.
john in calif