I am trying to get my 01 WR426 jetting down. I have heard about the BK mod, but are there any other more "modern" fixes for the hiccuping? Anything like the R&D floatbowl...etc? I have gone up to a 48 pilot and that got rid of the popping down low. The clip is in the 4th position and I am going to go up a size on the main tomorrow. Any advice on getting this carb to smooth out and settle down? Oh, the mods. Airbox lid removed, normal timing, baffle removed out of the exhaust. Any help is greatly appreciated.