It's standard practice to re-polarize the generator when replacing the regulator. Flash the "Armature" wire to the "Battery" terminal for a moment, which sends a jolt of current through the generator armature. Pretty good system, when everything works right. The main advantage to an alternator is an increased charge rate at idle/low speed, and it's self-regulating on current output.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!