The Stihl MS 251 Сhainsaw with a 16-inch (40 cm) bar: Wood Boss

The Stihl MS 251 Сhainsaw, often referred to as the “Wood Boss,” is a name that implies robustness and reliability for woodcutting tasks. This moniker suggests that the chainsaw is designed to be the leader or “boss” in its class for woodworking jobs. It conveys a sense of control, power, and authority over wood cutting, which is appealing to users who need a capable and commanding tool for their forestry, landscaping, or gardening projects. The name “Wood Boss” is aimed at instilling confidence in the product’s ability to handle the demands of cutting wood efficiently and effectively.

What is Stihl MS 251 Сhainsaw?

The Stihl MS 251 chainsaw with a 16-inch (40 cm) bar is designed for cutting firewood, trees, garden maintenance, and pruning tree crowns. It’s a powerful yet compact device. This tool is equipped with a reliable 2-stroke engine featuring 2-MIX technology, which increases torque and ensures stable performance at any engine speed. It also saves up to 20% on fuel consumption and reduces harmful gas emissions by 70% compared to traditional STIHL engines without 2-MIX technology. Since the saw has a 2-stroke engine, it is fueled with a mixture of AI-92 gasoline and 2-stroke oil at a ratio of 1 part oil to 50 parts gasoline. The saw can operate in two modes: summer and winter. For stable operation in winter, it is necessary to turn on the carburetor heating, which is blown with warmed air. Switching between modes is done with a simple hand movement. Air cleaning before reaching the air filter is achieved by the intake air’s circular trajectory in the flywheel, removing large and heavy dust and dirt particles through centrifugal force and expelling them upwards (via a lift ramp). The side chain tensioning device allows access to the tensioning screw from the side through the chain sprocket cover, preventing contact with the sharp chain and the tips of the sprocket nose. Patented oil and fuel cap covers can be opened and closed without additional tools using one hand. Convenient one-handed control of the saw is possible: starting, stopping, and operating. A transparent fuel tank allows monitoring of the fuel level without opening the cap. The anti-vibration system dampens the transmission of vibrations from the engine and chain to the handle and thus to the operator’s hands. The saw operates more smoothly, which results in less physical fatigue and effort for the operator. The saw is optimized for manageability and ease of maintenance.

Stihl MS 251 chainsaw features

The MS 251 with a 16-inch (40 cm) bar offers a robust blend of performance and convenience. Its defining features include:

  • Enhanced Power: Thanks to its advanced 2-stroke engine equipped with 2-MIX technology, it delivers more power and improved grip, ensuring efficient cutting.
  • Compact and Reliable: Its compact design doesn’t compromise on reliability, providing a dependable tool for various cutting tasks.
  • Eco-friendly and Economical: The engine’s design reduces gasoline and oil mixture consumption by 20% and cuts down exhaust emissions by 70%, meeting EU II environmental standards.
  • Versatile Fueling: The saw operates on a mixture of gasoline and 2-stroke oil, suitable for both summer and winter conditions, with a carburetor that features heating to prevent freezing.
  • Easy Maintenance: Equipped with a side chain tensioning mechanism, it allows for safe and easy adjustments without direct contact with the sharp chain.
  • Safety and User Convenience: Tool-free caps for oil and fuel make refueling and oiling hassle-free, and a transparent tank ensures easy monitoring of fuel levels. The anti-vibration system and ElastoStart handle provide comfort and reduce the physical strain of starting the engine.
  • Innovative Lubrication: The Ematic chain lubrication system is designed to precisely deliver oil where it’s needed, significantly reducing consumption.
  • Simplified Operation: A single lever controls all machine functions from start to stop, enhancing safety and ease of use.
  • Superior Filtration: The air filtration system is robust, featuring a pre-cleaner and the new HD2 filter, which boasts fine pores for trapping dust and easy maintenance without tools. This system extends the filter’s life and ensures sustained performance.

These features culminate in a chainsaw that balances power, user comfort, and environmental consideration, all while maintaining the durability and performance expected from a STIHL product.

The MS 251 with a 16-inch (40 cm) bar is an ideal chainsaw for homeowners, landscapers, and garden enthusiasts who require a reliable and efficient tool for managing their property. It’s well-suited for tasks such as:

  • Trimming and pruning trees to maintain health and aesthetics in a garden or yard.
  • Cutting firewood for residential heating needs.
  • Managing small to medium-sized trees for property maintenance or minor forestry work.
  • DIY building projects that involve woodcutting.
  • Clearing land or managing overgrowth in personal or public outdoor spaces.

Its combination of power and user-friendly features makes it a good fit for those who need a robust tool for regular use but also value ease of operation and maintenance. The environmental and safety features also appeal to users who are conscious of emissions and personal comfort during use.

William Royster

William Royster

Hello, I'm William Royster, an American wood and fire enthusiast. Through this blog, I share my expertise, tips, and experiences with all who are interested, from seasoned woodsmen to those curious about the warmth and memories of a roaring fire. Join me on this journey to reconnect with nature and simpler times. Cheers to the beauty of wood and fire! More info

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