Hey guys i read some threads but im still kinda confused. Anyways i thought i'd post my setup and stuff so i can get a better idea. I got a 01 YZ426, White brothers exhaust (R4), and i just put the Quickshot on. I did the AP mod (just put on o-ring around the lever and screw) and was taking a look at the BK mod but when i turn the lever it stops where if there was a screw there in the first place so i really dont see a need to do it? Jetting is stock on this thing, 162 main jet, 42 pilot jet, the jet needle is in the middle. I have the bog and also some sputtering in mid throttle, i think its just dirt im gonna clean it out. Any advice for me? I was thinking about a 165 main but would like some input, any would be helpful. Thanks in advance.