74 750 wiring problems

[Johican750]

Hello! New here. I bought a dumpster of a 74 cab750 this spring and already did a year correct heart transplant!!! Now I am chasing wiring shorts. I need some help. I am fine wrenching but I suck at wiring. It’s a stack of wires on the battery box with a bolt through it and an insulator….

 

[Johican750]

Hello! New here. I bought a dumpster of a 74 cab750 this spring and already did a year correct heart transplant!!! Now I am chasing wiring shorts. I need some help. I am fine wrenching but I suck at wiring. It’s a stack of wires on the battery box with a bolt through it and an insulator….

 

[drgnrdr750]

It's a rectifier