- Exquisite workmanship and stable performance for long service life. This motor sence carburetor kit is built to last and keep your equipment running reliably over time. - Compatible with STIHL models including HS 72, 74, 76, 75, 80, 85; FS 72, 74, 76, 75, 80, 80R, 85; FC 75, 85; HL75; HT70; HT75; KM85; and the C1Q-S66 carb kit. - It mixes fuel and air effectively to ensure smooth engine operation and consistent idling, improving overall performance. - Benefits include long life, stable operation, quick acceleration, and improved fuel and energy efficiency, along with fast starting performance. - Use scenarios: - Replace a worn carburetor on STIHL hedge trimmers or line trimmers to restore original power, starting, and throttle response. - Perform regular maintenance across a range of STIHL tools to maintain reliable starts and efficient fuel use. - Stock and service multiple STIHL models (HS, FS, FC, HL, HT, KM) with a single compatible carburetor kit.