The Adjustable Automatic Oiler allows the user to adjust the lubricant of the guide bar and saw chain for different bar lengths and cutting conditions.
Technical details
| Displacement | 3.1 in³ |
| Engine power | 4 bhp |
| Device weight without refuelling | 10.9 lb 1) |
| System weight without refuelling | 13.6 / 13.9 / 13.1 / 12.8 / 13.3 lb 2) |
| Power-to-weight ratio | 2.6 lb/hp |
Features
The pictures shown are sample photos. The actual appearance of the equipment features and their specific attachment to the product may differ from the pictorial representations, but will have the same functionality.
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.
These spikes prevent pull-in and provide better control, making cutting easier.
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.
The Ematic™ guide bar, when used with STIHL OILOMATIC® saw chain, will provide proper lubrication and less oil consumption than conventional methods. The system works because two ramps, strategically placed in the guide bar rail, help contain the flow of oil and direct all lubrication to the sliding faces of the bar and chain links as well as the rivets and driver holes, which in turn can reduce bar oil consumption up to 50%.
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.
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.
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.
The ElastoStart™ starter handle is an exclusive feature of STIHL. It is a starting grip with a built-in shock absorber that helps reduce the effort when pulling on the starter cord. The ElastoStart™ starter grip noticeably reduces the sudden peak forces (compression) normally felt during cranking. The forces which occur at the grip after the first compression stroke are smoothed out.
STIHL chainsaws are equipped with a chain stopping system designed to reduce the risk of injury in certain kickback situations. It is called a STIHL Quickstop® chain brake. The STIHL Quickstop® chain brake is designed to stop the rotation of the chain if activated by the operator’s hand or by inertia if the saw kicks back with sufficient force. In some working positions, the STIHL Quickstop® chain brake can be activated by inertia, stopping the chain within fractions of a second.
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.
See it in action!
Simply lift the lever and twist the caps to remove or tighten. There’s no need to use a tool to tighten or loosen.
This chainsaw offers an optimized power-to-weight ratio, great fuel efficiency, and convenience features.
Not available in all markets
The STIHL MS 261 is a versatile professional chainsaw built for demanding work, from cutting firewood to thinning and felling. Its redesigned cylinder and ergonomic housing provide an impressive power-to-weight ratio, giving you strong cutting performance in a well-balanced saw. Redesigned bumper spikes help provide better control while cutting, and the STIHL anti-vibration system helps reduce fatigue when there’s a full day of work ahead.
Designed to spend more time cutting and less time on maintenance, the MS 261 features a pre-separation air filtration system that doubles the time between filter cleanings. A decompression valve and STIHL ElastoStart™ help make starting easier, while the side-access chain tensioner makes chain adjustments more convenient. Toolless fuel and oil caps simplify refueling and adding bar and chain oil. With low exhaust emissions, high fuel efficiency, and professional-grade performance, the MS 261 is a dependable saw built for the variety of work professionals take on every day.
Hazard Warnings
General Power Tool
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. 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.
E-10 StatementNote: 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.
Proposition 65 - EnglishThis product contains chemicals known to the State of California to cause cancer and reproductive harm. www.P65Warnings.ca.gov
