I would try another 1/2 turn out on the pilot jet screw. Quick and easy to do.
Did you follow qwertys carb tuning guide? Or just go sick in a bigger jet and some shims and hope for the best? That's what I did first time out. Big mistake! Had more problems than I want to write about. Followed the guide, while time consuming it is the right way to do it and now my bike runs great.
Best of luck!