Is is practical to rebuild the stihl carbs one self? I'm not finding much on-line to buy a kit -- which doesn't surprise me with Stihl.
Your blower will have a Zama C1Q carb, S50, S55, S64 or S68A.
Kits RB=Rebuild GND=Gasket and Diaphragm
S50 kit is RB-79 - GND-39
S55 kit is RB-89 - GND-50
S64 kit is RB-89 - GND-50
S68A kit is RB-99 - GND-56
I suggest you take the carb with you if you have a small engine shop locally and they can give you the proper parts. Have a good one. Geo