u/KSicc

Pictures are before and after messing with the air/fuel screw. Believed it to be running to rich so I leaned it out, second picture was after a full 6 hour day at the track. I have the screw currently set at 1.5 turns out as per the manual states for my elevation and temp but it seems I can’t get it right. My carb doesn’t have stock jets so I ordered a shindy rebuild kit which will have all stock jets for my bike so I’m excited to try that out, bike also backfires a lot during kicking and on deceleration. What do you guys think. Thanks in advance