Key benefits Optimizes the air–fuel mixture so the engine burns fuel more efficiently — reduces fuel waste and lowers emissions. Improves cold and hot starts for faster, more reliable engine ignition. Stabilizes engine rpm for smoother idling and consistent performance under load. Delivers stronger acceleration when you need power, improving overall engine responsiveness. Atomizes fuel reliably to ensure the machine runs normally and consistently. What this part does Carburetor replaces or tunes the fuel delivery system to maintain the correct fuel/air ratio, which directly affects startability, idle stability, acceleration and emissions. Designed to restore or improve engine performance by ensuring proper fuel flow and atomization. Compatibility and fit Replacement for ZAMA C1Q-S269 carburetor. Compatible with Stihl models MS171, MS181, MS211. Intended for use on small two-stroke garden and outdoor power equipment that accept the ZAMA C1Q-S269 specification (listed in listings as a carb chainsaw or similar small-engine carburetor). Why customers need this Replaces worn or damaged carburetors that cause poor starting, rough idle, stalling, hard acceleration or high fuel consumption. A straightforward way to return a machine to factory-like performance during maintenance or repair. Useful for tune-ups when the existing carburetor cannot be cleaned or adjusted to specification. Practical use scenarios Seasonal chainsaw maintenance: Replace a failing carburetor on a Stihl MS171 to restore easy starting and stable idle before the cutting season. On-site repair: Fit as a direct replacement for a malfunctioning ZAMA C1Q-S269 carburetor on MS181 or MS211 models to eliminate stalling and inconsistent throttle response. Performance recovery after storage: Install during a tune-up when a machine that sat unused develops fuel delivery issues, improving acceleration and reducing smoking or high fuel use. What to expect after installation Easier starts and more predictable throttle response. More stable idling and fewer sudden stalls under light load. Improved acceleration when engaging the tool or blade, leading to a more efficient work cycle. Notes Confirm model compatibility (Stihl MS171 / MS181 / MS211) and ZAMA C1Q-S269 reference before purchase. Installation may require basic small-engine tools and adjustment; consult a service manual or a qualified technician if unsure. Includes Carburetor intended as a replacement component for the models and reference listed; sold as a single unit for tune-up or repair.