So I think I successfully did the needle shim and I replaced the fuel screw. I'm trying to get it tuned but think I'm having trouble. It seems to run fine but starting out in first it's a little hesitant to light up. Seems like there is a second or two lag between throttle twist and response. I've played with the mix quite a bit and it does seem to perform a little better overall but not sure I'm happy with the results so far. Have tried the fuel screw adjusted at anywhere from 1.25 to 2 turns out from seated. I'm not getting the wheel up in first like some have reported but it does get with it in short time. Any suggestions? Possible things to check or something I missed?