Stihl MS 311 Gas Chainsaw | Up to 25" Guide Bar 3/8" Pitch .063" Gauge

• Advanced gas-driven chainsaw for felling firewood
• Ideal for work in medium-density stands
• Especially good for agriculture and horticulture
• Easy handling thanks to the master control lever
• Practical decompression valve for efficient starting

• 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.
• Bumper Spikes: These spikes prevent pull-in and provide better control, making cutting easier.
• 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.
• High-Tech Polymer Housings: Housings are lightweight, withstand greater impact, and are corrosion-resistant.
• IntelliCarb™ Compensating Carburetor: The IntelliCarb™ Compensating Carburetor is designed to automatically adjust the air/fuel ratio when the air filter becomes restricted or partially clogged and maintains the engine’s correct RPM. IntelliCarb™ uses air from the clean side of the air filter to control the diaphragm and flow of fuel. As the air filter becomes dirty and less air is available for the carburetor, the IntelliCarb™ system adjusts the fuel flow to compensate for the decrease in air flow. This is in contrast to typical carburetors that utilize this air from the "dirty" side of the air box.
• 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.
• 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.
• 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.
• Reduced-Emission Engine Technology-Caring for Nature: The STIHL Inc. "Caring for Nature" seal identifies its powered products that are more environmentally conscious, producing zero or low exhaust emissions. STIHL Inc. defines "low exhaust emissions" as being cleaner than EPA and/or CARB exhaust emission standards.
• 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.
• Throttle Trigger Interlock: This safety feature must be depressed before the trigger can be activated.
• 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.

• Displacement: 3.6 cu-in
• Power: 3.10 kW
• Engine power: 4.20 HP
• Device weight without refuelling: 13.8 lb 1)
• System weight without refuelling: 7.59 / 7.72 / 8.39 / 7.35 kg 2)
• Power-to-weight ratio: 2 kg/kW
• Bar length: 25" 3)
• Groove width: 50 "
• Saw chain pitch: 3/8"
• Device length with bumper spike: 458 mm 1)

Engine

General