That is an accesory power wire. That tube thing is a connector cover.
It takes battery power from the white wire at the ignition switch and feeds 12 volts to your lamps and horn and brake light switches and regulator etc... It is powerless when the key is off.
Wiring diagram link
Go about one third of the way down and hit the "Z750E1 Wiring Diagram" (it shold be the same as the LTD) and see what that brown wire supplies.
77 KZ 650 C1.
77 KZ 650 C1.
Crashed-Repaired, Pods, Kerker pipe, re-wired core bundle, lamp upgraded, homemade rectifier, solid state regulator , Dyna-s ignition, repainted, slightly modified, year-round commuter
Honda Metro 85 mpg Scooter. Dont laugh I will throw it at you
