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Stihl Trimmer | FS38 FS38Z FS45 FS45C FS45L FS45Z FS45CE FS45CEDZ FS45CEZ FS45DZ FS46 FS46C FS46CE DZ FS46CEZ FS46DZ FS46Z FS55 FS55C FS55T FS55RC FS55Z FS55DZ FS55RC FS55CE FS55RCE FS55RDZ FS55RZ FS55CEZ FS55CEDZ |
Stihl Edger | FC55 |
Stihl Hedge trimmer | KM55 KM55C KM55R KM55RC KM55CE KM55RCE KM55RCEZ KM55RDZ KM55RZ Kombi motor |
Replaces | 4140 120 0619 4140 120 0619 4140-120-0620 C1Q-S186 C1Q-S186A C1Q-S186B C1Q-S66 C1Q-S71 C1Q-S97A C1Q-S143 C1Q-S153 |
● Drain screw: used to drain the fuel out of the carburetor.
● Idle mixture screw: controls the intake of fuel to adjust the engine for optimum running.
● Idle speed screw: controls the intake of air to adjust the engine’s idle speed.
● High-speed screw: adjustment for high speed.
● Low-speed screw: adjustment for low speed.
● Turn clockwise to decrease the RPM (revolutions per minute) while turning counterclockwise is for increase the RPM. The amplitude for each adjustment is 1/4 turn.