I just installed my new slip-on pipe today. I have a K&N filter and the airbox lid is off for right now. I installed DJ needles on the fourth groove down, I put in DJ 146/148 main jets and the mixture screws are 3 turns out. I'm at sea level. I got it all together tonight and took it for a spin, its fine off idle but sputters and wants to die at about 1/4 throttle, when I get it past 1/2 throttle it runs fine. I guess I'm too rich? It was getting late so I wanted some advice before I monkey with it tomorrow. Thanks anybody for advice.

 

Thanks airraptor.