Key Benefits Improves engine performance: Optimizes the fuel‑to‑air ratio so the engine burns fuel more efficiently, giving stronger acceleration and more consistent power. Easier starting and stable idle: Makes cold and hot starts simpler, stabilizes engine RPM, and reduces stalls. Saves fuel and reduces emissions: A more accurate mixture lowers fuel consumption and exhaust pollutants. Reliable operation and longevity: Dustproof and wear‑resistant construction helps prevent oil loss or leaks and extends service life. What this part does Precisely mixes fuel and air so the engine runs smoothly under variable loads. Supports stable throttle response and delivers power when accelerating. Acts as a direct replacement carburetor to restore original performance. Compatibility and part information Compatible with STIHL models: 021, 023, 025, MS210, MS230, MS250. Described as a replacement carburetor / ignition coil for spark plug kit and chainsaw parts. Part reference: 11231200605. Key attributes Function: Replacement carburetor that optimizes fuel/air mixture, improves startability and throttle response. Fit: Designed to match original carburetor dimensions and mounting for the listed STIHL models. Durability: Dustproof and wear‑resistant design to reduce wear and prevent oil leakage. Performance: Promotes efficient combustion, stable idling, and stronger acceleration. Practical use scenarios Routine maintenance: Replace a worn or clogged carburetor on a homeowner’s STIHL MS230 to restore fuel efficiency and reliable starting. Fieldwork and forestry: Install before a season of heavy cutting with an MS250 or MS210 to maintain stable RPM under load and reduce downtime. Professional service and repair: Use as a direct replacement part when refurbishing chainsaws for rental or commercial use to ensure consistent performance. Installation notes Intended as a direct replacement for the original carburetor on the listed models; confirm model number before purchase. No additional claims about altered dimensions or material composition beyond dustproof and wear‑resistant construction are made; follow standard safety and service procedures when installing. What customers can expect Smoother engine operation, improved throttle response, easier starting, reduced fuel use, and a durable replacement that fits the specified STIHL models (021, 023, 025, MS210, MS230, MS250). Part number: 11231200605.