The Stihl MS 170 is a popular chainsaw model that has been a favorite among arborists, loggers, and DIY enthusiasts for its exceptional performance, reliability, and value. As one of the most widely used chainsaws in its class, it’s essential to delve into the details of this powerful machine to understand what makes it tick.

Engine and Performance

The Stihl MS 170 is powered by a 38cc two-stroke engine that delivers a respectable 1.6 kW (2.2 hp) of power. This compact yet potent motor enables the saw to tackle demanding tasks with ease, including felling medium-sized trees and bucking firewood. The engine’s performance is further enhanced by Stihl’s proprietary technology, such as its Quickstop feature, which allows for smooth and safe operation.

Chainsaw Bar and Chain

The MS 170 features a durable 40 cm (15.7 in) long chainsaw bar made from high-quality aluminum alloy. This provides an excellent balance of stiffness and flexibility, allowing the saw to navigate through dense woods with minimal vibration. The chain itself is designed for optimal cutting performance, with a 3/8″ pitch and 0.05″ gauge.

Ergonomics and Handling

One of the standout features of the Stihl MS 170 is its ergonomic design. The contoured handle and grip provide excellent comfort and control during extended use, reducing fatigue and strain on the user’s hands and arms. Additionally, the saw’s weight distribution makes it easy to maneuver, even for those with limited experience.

Safety Features

Stihl has implemented several safety features in the MS 170, including:

• Quickstop: A patented feature that stops the chain in case of a kickback or accidental release.
• Decompression valve: Allows for easier starting and reduces engine stress.
• Throttle lockout switch: Prevents unintentional engine start.

Maintenance and Repair

The Stihl MS 170 is designed with ease of maintenance in mind. The air filter, spark plug, and chain tensioning system are all easily accessible, allowing users to perform routine maintenance tasks quickly and efficiently.

Technical Specifications:

• Engine: 38cc two-stroke
• Power output: 1.6 kW (2.2 hp)
• Chain bar length: 40 cm (15.7 in)
• Chain pitch: 3/8″
• Chain gauge: 0.05″
• Weight: 4.5 kg (9.9 lbs)
• Sound pressure level: 110 dB(A)

Comparison to Competitors

The Stihl MS 170 stands out from its competitors in several key areas:

• Power-to-weight ratio: The MS 170 boasts an impressive power-to-weight ratio, making it one of the most efficient chainsaws in its class.
• Ergonomics: The contoured handle and grip provide unparalleled comfort and control during extended use.
• Safety features: Stihl’s Quickstop feature is unmatched by other manufacturers, providing users with added peace of mind.

Conclusion

The Stihl MS 170 is a formidable chainsaw that has earned its reputation as a reliable and efficient workhorse. Its exceptional performance, ergonomic design, and comprehensive safety features make it an excellent choice for professionals and DIY enthusiasts alike. While it may not be the most expensive option on the market, the MS 170 offers unbeatable value for its price.

Recommended Uses:

• Felling medium-sized trees
• Bucking firewood
• Logging operations
• Landscaping and gardening tasks

Price: Around $300-$400 (dependent on retailer and location)