Under the left side painted cover and also directly under the seat behind battery.
Remove the seat.
The drain plug for a 1999 Harley Davidson soft tail is located at the bottom of the oil tank. There is a rubber hose leading to the frame, follow it to the right side of the frame. It is located under the bike on the frame.
To distinguish it from a 'rigid'. It was the first Harley model to employ a rear, independently suspended, swing arm for a softer ride. Most modern motorcycles are soft tailed but there is only one softail Harley.
About $5,000
12 volts
A Harley Davidson soft tail weighs approximately 750 lbs. The length of the soft tail is approximately 94.5 inches. The seat height is 25.5 inches.
The main (30 amp) breaker is located on the plastic rear fender extension, toward the right side.
No
Soft Tail Fat Boy
.040, or forty thousandths
Behind the head light
I believe they are the same as the other soft tail 2004 bikes 1455cc.