got the warrior back together and took it for a ride, the all of the sudden it wont rev past 1/2 throttle and if i try it backfires, any help? thanks

 

check your jetting

 

I don't know about anything modded with nitrous but I believe it may be rich but you may have already thought about that but as I have seen the warriors have been notorious for bad throttle, and I love my warrior more than any atv in the world and mine did the exact same thing until I put a pipe and filter and rejetted it and fine tuned the pilot now it's a bad *** warrior

 

this might sound stupid but it happend to me... make sure ur choke isn't on by accident. this hapend to me and i didn't realize it for a week. (damn 300ex choke location) this was when i first got the quad and i had never ridden anything over a 90cc and when i turned it off i gave it gas and the thing wheelied up and i fell off lol. hope the problem is as simple as that to save u some work

 

jetting is my final answer

it will work if you put a honda sticker on it but it will be a little slower

 

i found the problem, the cam chain tensioner was loose , i tightened it up and everything is fine now! thanks

ps, it wouldnt be jetting if it just happened. would it?