amp readings 31-57

[my31buick]

can anyone tell me what the normal range amp gauge readings on a 31-57 while running down the hyw without lights on. and what it should be with lights on. and how do I make adjustments?. Going down the hwy at 45 mph. It is reading  about 13. turn headlights on and it drops to zero. Honk horn at it drops to zero

[Guest]

Sounds about right.  Do a search for three brush generator or 3 brush generator.  There are more than 500 posts.