regulator

I recently bought a 1980 xs400 bobber and the regulator is shot. I've got the replacement ready to go, and the wiring looks easy - just unplug the bad one and plug this one in. What I would love a little advice on is how to attach the new regulator to the bike? It's the newer, electric one - on...

Hey everyone, I have a 1980 XS400. I did a barebones re-wire. Everything is complete besides the alternator system. I am super confused here, though. Does a 1980 have a combined regulator and rectifier? If so, how many wires should be coming out of it? Also, what is this guy...