How do you adjust carburetor on stihl bg85 leaf blower?

To adjust the carburetor on a Stihl BG85 leaf blower, first, ensure the engine is warm and running. Locate the three adjustment screws: the "H" (high speed), "L" (low speed), and the "T" (idle). Start by turning the "L" screw clockwise until it lightly seats, then back it off about 1 turn; repeat for the "H" screw, adjusting for optimal performance. Finally, adjust the "T" screw to achieve a smooth idle, ensuring the engine runs efficiently without stalling.