STIHL MS 311 Chainsaw - 20"

The MS 311 is a high-tech workhorse with a step up in horsepower and features over the MS 291. With our improved engine technology, you get higher fuel economy for longer run times. The MS 311 also has larger fuel and oil tanks for even longer extended use. You’ll stay productive – while you’re saving money on fuel. With the MS 311’s fuel-efficient, high-powered engine, you’ll reduce your down time on the job – so you can enjoy your own down time when the job is done.

Features:

• 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.
• 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.
• 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.
• Decompression Valve: The decompression valve, also referred to as 'deco' or 'deco valve', vents compression in the cylinder for easier starting. The decompression valve temporarily reduces the compression in the combustion chamber during cranking and helps reduce the effort needed to pull the starter rope. It is opened manually and closes automatically as soon as the engine fires.

Specifications:

• Power Source: Gas
• Powerhead Weight: 13.67 lbs.
• Guide Bar Length: 20 in.
• OILOMATIC Chain: 3/8" RS3
• Chain Oil Capacity: 11.8 oz.
• Engine Power: 4.2 bhp
• Fuel Capacity: 20.3 oz.
• Displacement: 59.0 cc

STIHL recommends #3624 (33 RS3 60) OILOMATIC® saw chain and 16" 3003 008 8913 Ematic™ guide bar combination. Compatible guide bar ranges: 16" to 20"

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)
• Stihl recommends the use of green reduced kickback bars and green low kickback chains on all Stihl chainsaws