Bike= '74 CB550K.
I got a generic 3 prong flasher unit, but the bike came with a two flasher one on it that obviously wasn't functional. The flasher unit has the connector tabs labeled: LEAD INPUT FUSE. The bike has Grey, GReen and BlacK wires but I don't know wiring enough to tell what goes where. The confusing part is that both the green and bloack wires appear to act as grounds in the wiring diagram.