Maritime, you might be interested in this. I discovered that Honda ran one alternator phase up to the right controls connector, through a jumper, and back. That's ~2 meters wire and 2 extra connectors! Why? Because for Euro spec models they used that phase to power headlights. Just put tge jumper in for US/CA models. I bypassed that on this bike by just pulling tge appropriate connector from the 8 pin and making up a new phase lead with a new connector to insert in its place. BTW, this is only on the '78s and '79s (so I'll be modifying my other two bikes when electrical work is needed).
I've gone through ~80% of the harness so far. When that task is complete, the frame goes back on the engine, and the swing arm gets remounted.