Or is it there to stay? My bike runs good except when I snap the throttle open real quick the bike will stall. Does anyone have any sugestions? Thanks 99 WR400, airbox lid removed, throttle stop trimmed, WB Pro Meg & tapered head pipe w/9 disks, YZ timing, DVP needle #4 clip, 178 main jet, 50 pilot jet, pilot screw 1 3/4 turns out. p.s. I tried a search but most of the old post "could not be found."