Infographic of MS 271 pointing out the Intellicarb Compensating Carburetor, Round Canister-Style Air Filter, Fuel Efficient Engine, Advanced Anti-Vibration System, Fuel-Efficient Engine and Toolless Fuel and Oil Caps with Retainers

Image with user review for MS 271 that reads "Great Power. Smooth to Operate."

Made in America disclaimer stating that "A majority of STIHL products sold in America are made in America of U.S. and global components."

Close up with MS 271 FARM BOSS® cutting a log

MS 271 FARM BOSS® on branch with protective gear

Man in protective gear cutting log with MS 271 FARM BOSS®

Close up of man cutting log with MS 271 FARM BOSS®

View from above of a MS 271 FARM BOSS® resting on a tree stump next to some STIHL protective wear

MS 271 FARM BOSS®

Name: MS 271 FARM BOSS®
Brand: STIHL
SKU: ms271
Rating: 4.4507 (2436 reviews)

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Powerful and fuel-efficient chainsaw with reduced exhaust emission engine technology. This chainsaw is built tough for felling, firewood cutting, and storm cleanup tasks.

Features

Bumper Spikes
Toolless Fuel and Oil Caps with Retainers
Pre-Separation Air Filtration System
Side-Access Chain Tensioner

The MS 271 FARM BOSS® is a mighty boss of a chainsaw. Loaded with features and technology, the FARM BOSS® starts with a highly efficient engine that delivers 20% longer run times between refuelings—while cutting exhaust emissions in half compared to the previous model. The pre-separation air filtration system is extraordinarily effective. Your air filter can last up to five times longer. All this STIHL engineering in one compact, ergonomic design—now that’s high performance.

Features
- Bumper Spikes -
  These spikes prevent pull-in and provide better control, making cutting easier.
- Toolless Fuel and Oil Caps with Retainers -
  Simply lift the lever and twist the caps to remove or tighten. There’s no need to use a tool to tighten or loosen.
- Pre-Separation Air Filtration System -
  This time-saving technology boosts the efficiency of the engine’s filter system, doubling the time between air filter cleanings. Air drawn into the engine is first separated via centrifugal force, ejecting the heavier dirt particles before being routed to the air filter. This pre-separation means less dirt to be captured by the air filter, resulting in less frequent cleaning and maintenance.
- Side-Access Chain Tensioner -
  The side-access chain tensioner makes it much more convenient for the user to adjust the saw chain with a bar wrench as opposed to the typical location of the guide bar adjustment screw.
- Anti-Vibration System -
  STIHL has developed a system for minimizing the vibration levels of handheld outdoor power equipment. The STIHL anti-vibration system helps reduce operator fatigue and provides a more comfortable working experience.
- Master Control Lever™ -
  The Master Control Lever™ is an easy to use single lever, operating the choke, starting throttle lock, and on-off switch. The operator must pull the throttle trigger before moving the Master Control Lever™ to the choke position.
- Throttle Trigger Interlock -
  This safety feature must be depressed before the trigger can be activated.
- High-Tech Polymer Housings -
  Housings are lightweight, withstand greater impact, and are corrosion-resistant.
- Powerful Low Exhaust Emission Engine -
  A powerful low exhaust emission engine saves users fuel and operating costs without losing the power they count on to get the job done.
- Made in America -
  A majority of STIHL products sold in America are made in America of U.S. and global materials.

Specifications

Questions And Answers

Reviews

Warnings And Safety
Chainsaw Safety and Maintenance - Video
Product Instruction Manual (PDF)
Product Safety Manual (PDF)
STIHL Limited Warranty
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* The actual listed guide bar length can vary from the effective cutting length based on which powerhead it is installed on.
IMPORTANT SAFETY INFORMATION The occurrence called “kickback” can cause serious or fatal injury. Always read the instruction manual carefully before using your saw. STIHL uses a green and yellow color-coding system to help you select a powerhead, bar and chain combination that complies with the kickback requirements of ANSI Standard B175.1 (gasoline-powered saws) and §30 of UL 1662/ ANSI Standard B175.1 (electric chainsaws). Ask your STIHL dealer about safe operating procedures and the advantages of the STIHL Quickstop® chain brake, STIHL Quickstop® Plus additional chain braking feature, STIHL reduced kickback bars and STIHL low-kickback saw chains.

STIHL recommends the use of green reduced kickback bars and green low kickback chains on all STIHL chainsaws.
Note: STIHL recommends use of fuel with no more than 10% Ethanol content. Using fuel with greater than 10% Ethanol content may cause damage to your equipment and may void your STIHL warranty.
WARNING! Improper use of any power tool may cause serious or fatal injury. Read, understand, and follow carefully the operating and safety instructions in your instruction manual before using such products.

STIHL products sold through U.S. STIHL Dealers are for distribution in the United States only.

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POWER SOURCE	Gas
POWERHEAD WEIGHT	12.3 lbs.
GUIDE BAR LENGTH (Recommended)	18 in.
OILOMATIC® CHAIN	.325" RM3
CHAIN OIL CAPACITY	8.12 oz.
ENGINE POWER	3.49 bhp
FUEL CAPACITY	16.9 oz.
DISPLACEMENT	50.2 cc
INTENDED USE	Farm/Ranch