I'll be the one to bite ... I assume you checked the fuse. I had this problem too right after getting the bike. A worn wire off the key switch would short out and knock out all the lights, bike would run fine, headlight worked too, but no running lights.
You can tell me to go shut up now lol.
87 vn750at least that is what the frame #'s say
"Squirrel Bike" aka Jersey
Rat bike with a good PR agent
shaved and coastered
2 into 1 exhaust
rear 170 and front 110
custom dash with voltmeter
Recovered seat without "butt hammers"
More to come
Praise to the Parts Goddess Crobins for needed things
When someone tells me "Great minds think alike" all I can think is "You Pervert"