Yep, this isn't a scooter forum...
Also, you're going to mess things up pretty badly putting dry nitrous oxide (that's what I'm assuming you're talking about) into any engine...
If you're going to do nitrous, at least do it properly instead of half assing it with some horrible kit off eBay. You need to put more fuel in when the nitrous hits or else your engine will lean out. It's different for a 4 stroke which you likely have, but still not good for it to be taking in way less fuel and leaning out.