do you have a wiring diagram?
no, the voltage regulator shouldn't click when the key is turned on, and yes, you probably have the ammeter backwards .... your best reference is the shop manual, found here

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics