- Sat Mar 05, 2016 9:01 pm
#55969
There seems to be a lot of confusion and therefore misleading advice being offered.
Dave,
the AC part of the lighting system ***HAS NO EARTH***, just the amber return wire to the alternator. The AC regulator bracket should be fully insulated from the internal components. Only the lights and other components on the DC side of the bike's electrical system will be earthed as usual.
Papasmurf,
most of the 1999 - 2008 Bullets with the classic engine (apart from some late Indian home market TCI ignition models) have a totally independent AC system for the headlight powered directly off its own coils on the alternator. This is completely isolated from the rest of the electrics, and the headlight only gets any power when the engine is running! This was perfectly legal, though you might prefer a system which could provide headlights with the engine off. The Electra-X you're used to has a different system, a 3 phase alternator just supplies the regulator/rectifier, with everything then taken off the main DC supply as normal.
Adrian