Power Meets Efficiency: A Comprehensive Stihl MS 271 Farm Boss Review
When it comes to mid-range chainsaws designed for serious landowners, farmers, and those managing large wooded properties, the Stihl MS 271—colloquially known as the Farm Boss—stands as a pivotal model in the Stihl lineup. Replacing the legendary MS 270, the MS 271 was engineered to bridge the gap between casual residential tools and high-end professional forestry saws.
We tested the MS 271 across 20+ acres of mixed woodland, processing firewood and clearing storm damage. Here is what we found.
At a Glance: The Mid-Range Field
| Feature | Stihl MS 251 | Stihl MS 271 Farm Boss | Stihl MS 261 C-M |
|---|---|---|---|
| Displacement | 45.6 cc | 50.2 cc | 50.2 cc |
| Power Output | 2.2 kW | 2.6 kW | 3.0 kW |
| Weight (Powerhead) | 10.8 lbs | 12.3 lbs | 10.8 lbs |
| Crankcase Material | Polymer | Polymer/Metal | Magnesium |
Stihl MS 271 Review: Performance Breakdown
The Stihl MS 271 is powered by a high-torque 2-MIX engine. This technology uses a stratified charge system that reduces fuel consumption by up to 20% and significantly lowers exhaust emissions compared to traditional two-stroke engines.
Advanced Filtration System
One of the standout technical features is the long-life air filtration system with pre-separation. This system uses centrifugal force to eject heavier dirt particles before they reach the filter. In our testing, this resulted in significantly longer run times between filter cleanings.
Honest Downside
At 12.3 lbs, it can feel heavy during all-day use compared to the pro-grade MS 261. Unlike professional saws, it utilizes a split-case design rather than a full magnesium crankcase. It is heavier than the MS 251 with only moderate power increase.
Who It Is Best For
Users who need more power than an entry-level saw but cannot justify the $600+ price tag of a professional forestry saw. It excels in firewood processing, storm cleanup, and moderate felling.
Chainsaw Safety
The Farm Boss is powerful enough for serious cutting. Always wear proper PPE and never cut alone. Learn proper felling techniques before dropping trees near structures.
Review our chainsaw safety guide before operating this saw.
Maintenance
The MS 271 features toolless fuel and oil caps and a side-access chain tensioner for easy field adjustments. The pre-separation air filtration system reduces maintenance frequency significantly compared to standard systems.
For correct bar and chain selection, see our stihl-chainsaw-bar-size-guide-match-your-model-to-the-right-bar-chain.
Gas vs Battery
For farm and ranch work where you may need to cut all day without access to power, the MS 271 gas engine delivers unmatched runtime. Battery equivalents in this power class still cannot match the work-per-day output. Read our gas vs electric chainsaw guide.
Final Verdict
The Stihl MS 271 Farm Boss remains one of the most reliable mid-range saws on the market. It provides a perfect equilibrium for the user who needs more power than an entry-level saw but cannot justify the cost of a professional forestry saw. For those who prioritize fuel economy and long-term reliability over absolute weight reduction, the MS 271 is a premier choice.
SAWOFF Rating: 4.6 / 5
Get out there and cut. Safely.
Frequently Asked Questions
Is the MS 271 a professional saw?
No, the MS 271 is classified as a mid-range or prosumer saw. It features many pro-level attributes like advanced filtration, but it does not have the magnesium crankcase or power-to-weight ratio of the professional MS 261.
What is the best bar length for the MS 271?
While it can handle a 20-inch bar, the sweet spot for the 50.2cc engine is an 18-inch bar. This provides the best balance of reach and chain speed.
Does it require a specific fuel mix?
Like most Stihl gas saws, it requires a 50:1 ratio of high-quality 89-octane gasoline and two-stroke engine oil. Using Stihl MotoMix is recommended for long-term engine health.
How does the MS 271 compare to the older MS 270?
The MS 271 offers better fuel economy (up to 20% improvement) and a 50% reduction in emissions. However, it is slightly heavier due to the added components of the 2-MIX engine.
What is the weight of the MS 271 Farm Boss?
The MS 271 powerhead weighs 12.3 lbs (5.6 kg), making it heavier than the professional-grade MS 261 which produces more power at 10.8 lbs.
Does the MS 271 have a side-access chain tensioner?
Yes, the MS 271 features a side-access chain tensioner and toolless fuel and oil caps for easy field adjustments.
Can the MS 271 be used for professional tree work?
It can handle occasional commercial use, but it is not designed for daily professional work. Its polymer crankcase is less durable than the magnesium crankcase found on true pro saws.
What chain does the MS 271 use?
The MS 271 uses a .325" pitch chain. An Oilomatic chain is recommended for optimal lubrication and performance.
