my friend has a tether switch on his banshee, we started it without it because all it is a button, you just have to push it in, you can buy a small key from a hardware store, for like 20 bucks, just wire it to the same wires as your kill switch, just put it somewheres on the bike that isn't really noticeable like behind the headlight, or under the gas tank or something. that's what i'm going to put on my 200x. my friend's banshee, has the same thing, i have one on my 185s too. and i know a few others with banshees that have it also.
Caution
Do not "POP WHEELIES" and run for any distance with the ATC. The oil capacity is relatively small and the oil will drain out of the oil pump area thus causing loss of oil pressure, resulting in costly engine damage -CLYMER