I have a 99 warrior with WB Eseries full exhasut and a k&n filter....I have a 150 main jet in it but it stumbles after half throttle and won't accelarate hard HELP PLEASE

 

May be wrong, but a 150 seems large to me for a warrior. Turn your gas off and hold it full thottle and see if the motor runs better as it runs out of gas. If so, go to a smaller jet.

ps - you might also try removing the airbox lid to see if that helps lean it out a little.

 

Stock jetting is a 145 MJ...I hot tthis thing for 88 bucks casue it was not running right but i think it is probaly something simple The headders were also glowing red when it ran for a litttle bit but this was at idle is that lean or rich

 

800 bucks sorry

 

i think that means lean

 

Sounds like you couold have a leak where the pipe mounts to the head. It'll suck air back into the exhaust side of the engine causing it to run extremely lean.

 

Before The mods on my 98 warrior I just ran a pro flow with k&n no airbox lid and cut the end off the stock exhaust and ran a 147.5 and i really think it had more power then than when i put the Pro Circuit T4 on it. but that T4 sounds sweet. oh yeah my brother and buddy both have warriors and the 150 didnt seem to work good on theirs either 147.5 is primo just need to move the needle clip up or down maybe.