I did the mod last night, will ride this weekend. Pre-mod, the squirt was only about 2 seconds. According to what I've read, this is way less than usual. I assume you measure the duration by quickly opening the throttle, not a slow roll-on. My drill/tap set was $4.49 at H-Depot! UGH! My bike never bogged at the bottom anyway, so I don't know if I'll see much of a performance difference. Should I expect to have to richen up after this (needle height)? ------------------ 01 WR426, uncorked stock pipe, sometimes Euro pipe, EKQ POS#3, #158 MJ, #42 PJ, 1 3/4 turns.