When I installed my REV pipe I also had a bog when snapping open the throttle. I though the REV pipe just stole my bottom end but I was wrong. I tried a richer pilot and the bike ran better so I tried one more step richer and the bike got even better when snapping the throttle but started loading up when riding slowly. So I decided to put the pilot back to the recommended 42 and adjust my needle clip one notch richer.....WOW, that was my problem all along. Now my bike stays crisp when idleing and stands up when I flick the throttle open. :cool:
My current summer jetting is 152 main, 42 pilot, needle clip in #3, A/F screw @ 3/4 turns out. When the temps cool off I will switch to a 155 main.