sorry i have a 2000 warrior with a super trap exaust and a k&n. whut should i jet it at. also do u have to take off the carb to do this??

 

sweet i have the same set up.... i live in mn and i use a 148 main jet and set my air/fuel screw at 2.5 turns out
and yeh you do half to take the carb off to get to the main jet then remove the float bowl at the bottom of the carb after you pull that off the main jet will be right there it will say 145 on it thats stock.... also i cut a hole in my airbox lid this made a big difference copared to stock..... depending on what altitude you ride at the main jet might me a little diffrent but reply back with any Q good luck

 

lol i cut a a whole in my air box lid to. thnax 4 the help!

 

I run a 148 as well - does fine