Check with a volt meter for the 40-50 volts mentioned above. If it is not putting out,: Look carefully under the case (near the countershaft sproket!!) where the wires come out (or on top of the case, I cannot remember if 69's are the old or new routing) and check for damaged or cut wires. If no damaged wires are outside of the case, pull the primary cover and check to see if you might have sawed through a wire with the primary chain. Check right up close to the stator, where the wires just come out and check for a broken wire. They tend to break right where you cannot splice a new wire in.
If it has a modern voltage regulator, check that, if it has the rectifier and zener diode, check those for output.
If there is no mechanical reason why it ain't putting out, then it is shot. try a SPARX high output unit, especially if you are running a Boyer.
Should have 40-50 volts AC coming out of the stator...