The voltage regulator bolts onto the frame, usually on the two downtubes of the front of the frame. It has one two pigtail and then a larger gauge single long wire. The pig tail plugs into the crankcase near the end of the oil filter. It may have a clip that holds it in. Loosen the nut on the clip and unplug the pigatail. Mount the new regulator to the frame where the old one came off. The regulator must have a good ground connection between it and the frame. Most mechanics put a "star type lockwasher" between the frame and the regulator. The teeth on the star lockwasher bite into the frame and the regulator insuring a good ground. The long wire is routed along the frame back and up to the positive side of the battery. There is no need to polarize anything, just put the new one on and that's it.
do i need to take the gas tank off
Well, I'm not sure on your later model bike but I wouldn't think so. The voltage regulator is usually located where it can get lots of air flow across it as it can get pretty warm at times. As I said in the original post, it's usually mounted on the front downtubes of the frame right behind the front wheel. It gets good air flow in that location. You've got three wires coming out ot the regulator. Two are together and they run to the connector on the lower front of the engine. The single larger diameter wire goes directly to the battery, main breaker, or starter connection so that it can charge the battery. This wire is usually routed along the lower section of the frame until it gets to the middle of the bike and then turns upwards towards the battery.
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