You will get the basics of how things work and general workshop procedures and little else. Some of those courses cover a few specifics like dealing with the ball and grove shifters on Hodakas, timing HD crankcase breather valves or positioning early Triumph cam followers and other stuff that will gain you titles in trivia contests.
If you have no idea what goes on inside a motorcycle engine, you will learn some useful stuff that will help deciphering the service manual.
