Norton Commando Wiring Diagram + Boyer + Podtronics
This diagram includes BOTH the Boyer Electronic Ignition AND the Podtronics combined Regulator/Rectifier unit.
1971 (three wires to the master switch) PNG 3066×1841
1972 onwards (four wires to the master switch) PNG 3066×1841
The Boyer and Podtronics pairing is probably the most common set of upgrades to a bike.