I’ve got a 1998 Harley Davidson Fatboy. Here’s the deal --I got off work andwas heading to the houseand my battery was dead. I jumped the battery to start bike. The bike started to sputter. Then a puff of white smoke came out from thefront of my bike. It smelled electrical. I got the bike home and charged the battery. Bike started but I didn’t have no headlight or tail light. Used voltage meter while bike was running. Battery showed 0 volts. While bike was running I unplugged regulator at stator plug and bike died. Can anyone help me out?

 

Start by removing/cleaning (both ends of both cables) and reinstalling the battery cables on the battery and try it again to see how it runs.
You should read at least something on the battery with a meter even if the battery has gone bad, your meter may be bad from what you wrote here. When you unplug the regulator and it died, that means you were running off the output from thestatorand not from the battery.
The puff of smoke could be from when the engine stalled and puffed back.
As far as your lights being out, check fuses and breakers with a known good meter.