This comprehensive service and repair manual provides detailed instructions and diagrams for maintaining and repairing Stihl MS271 and MS291 chainsaws. It covers a wide range of topics including assembly, disassembly, troubleshooting, adjustments, and replacement procedures for all major components. Whether you're a professional mechanic or a DIY enthusiast, this manual contains the essential information needed to perform a full range of service and repair tasks on these popular chainsaw models.

The Stihl MS271 and MS291 are powerful, high-performance chainsaws designed for demanding forestry and landscaping applications. These gasoline-powered machines utilize a robust, two-stroke engine that delivers impressive cutting power and efficiency. The MS271 boasts a 50.2 cc engine with a maximum power output of 2.5 kW, while the MS291 features a larger 59.8 cc engine producing a maximum power of 2.9 kW. This difference in displacement contributes to the MS291's increased torque and power, making it ideal for heavier cutting tasks and longer operating periods. Both models are equipped with a reliable Stihl M-Tronic engine control system, which automatically adjusts engine settings for optimal performance in various operating conditions, ensuring consistent power and smooth operation. Both the MS271 and MS291 chainsaws prioritize operator comfort and control. They feature a low-vibration design, reducing fatigue during extended use. The ergonomically designed handles provide a secure grip and intuitive control over the machine. The chainsaws also incorporate a robust anti-vibration system, effectively damping vibrations and improving operator comfort. The MS271 and MS291 are equipped with a durable, long-lasting, and reliable STIHL 2-MIX engine technology. This technology lowers fuel consumption and exhaust emissions while maintaining exceptional power. Both models offer a variety of safety features, including a chain brake system that quickly stops the chain in the event of kickback, a safety-oriented design that minimizes the risk of injury, and a robust safety switch that prevents accidental starts. With their powerful engines, robust construction, and comprehensive safety features, these Stihl chainsaws make reliable and efficient tools for professionals and homeowners alike.