Jul 11, 2020 · EDIT - ok i found out the name for that little toggle is the air gap switch. this was set to off for many days and i didn’t realize it. even turning off the fuses at the electric box and back didn’t help.
Air filter: Felt element. No H screw. Maximum engine RPM is permanently set by fixed jet (not adjustable) Carburetor with balanced idle system with only one adjusting screw (LD) Stihl 018 Ignition System. Type: Electronic magneto ignition (breakerless) with integral trigger unit. Air gap: 0.15 – 0.30 mm (0.006-0.012 in)