I've got a stock 2000 warrior and am looking at getting a new exhaust for it.... I am looking at something like a white brothers or FMF but really have no idea to be honest. I am also going to be most likely running the quad without the airbox lid.

Anyways, after getting a new exhaust, I understand that I would need to "rejet" the carbeaurator. Would I specifically need to buy one of those "jet kits" or would I be able to rejet the bike with my very own two hands? I've got a couple friends who are extremely handy with working on bikes that'd know what they are doing. But, would I need a jetkit or could I just move the clips and adjustment screws in the current carb to make it all work?