BR-340 Leaf Blower question
I have a Stihl BR-340 leaf blower and have had what appears to be a carburetor problem. Fuel is getting to the carb, new spark plug, etc. It starts but runs a bit rough. The instructions in the owner's manual are not clear on making adjustments to the Low Speed (L) adjustment screw or even whether it takes a special tool to make the adjustment. The manual just states, "Carry out standard setting on the low speed screw." What the heck does this mean. It is not described anywhere in the manual. Any help would be appreciated.