Welcome SSR!

Turner - The screw on the side of the side of the carb is the idle, turn in high idle, turn out slower idle. The air/fuel mix screw is on the bottom of the carb at the front, hidden under that black rubber plug.

Read up on that walbro carb pdf circulating here, it's great info.

Word up, nice weather and a day off for me. Gonna go mess around and take a good ride. Holiday weekend y'all, Enjoy!