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⚠️ WARNING! Improper use of any trimmer/brushcutter can cause serious or fatal injury. Read, understand and follow all safety instructions in your instruction manual. To reduce the risk of injury from blade contact, circular saw blades may be used on FS brushcutters that have a limitstop, a bicycle handle and double shoulder harness and not on FS brushcutters with a "J" handle or loop handle. Other rigid blades may be used on FS brushcutters having a bicycle handle, a "J" handle or a loop handle equipped with a barrier bar. To reduce the risk of eye injury always wear proper eye protection. Always use the appropriate deflector for the type of cutting attachment, as explained in your instruction manual.
🖊️ 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. Note:STIHL engine products with the Caring for Nature logo are cleaner than EPA Standards for exhaust emissions.
⚠️ 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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• Great for landscaping professionals or homeowners with large sized yards
• Powerful 36.3 cc engine and large fuel tank
• Accepts a wide variety of STIHL Cutting heads including blades
• Ergonomic Bike Handle design with rubberized grips for enhanced grasp and comfort.
The STIHL FS 131 trimmer is ideal for landscaping professionals searching for a simple and convenient trimming option. The FS 131 has a 30 percent longer run time because of its low-emission 36.3 cc engine and bigger fuel tank than the previous model. Rubberized grips are used in the bike handle design for improved grip and comfort. The semi-automatic choke lever enables a one-touch stop and a simple three-step starting method on the trimmer. All of this, plus STIHL's proprietary IntelliCarbTM technology and better air filtration. The icing on the cake? A wide selection of heavy-duty cutting heads, including metal blades, may be used with the solid steel driving shaft.
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.
STIHL has 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.
Cutting Heads & Blades Selection Chart
Need help selecting a cutting head or blade for your STIHL trimmer or brushcutter?
Tool-Free Handle Adjustment
The central wing nut enables easy adjustment without the use of tools. For transportation and space-saving storage, the handle can be rotated 90°.
Simplified Starting Procedure
To get started, simply pump the fuel primer, set the choke, and pull the starter cord. The built-in stop switch allows the user to turn off the engine with a simple press of the button. When the engine is off, the throttle lock automatically returns to the “start” setting. Your power tool will be ready to be started when you’re ready to get back to work.
IntelliCarb™ Compensating Carburetor
The IntelliCarb™ Compensating Carburetor measures the air pressure on the clean side of the air filter and adjusts the metering diaphragm in the carburetor. This keeps the RPM at a consistent level, even when the air filter begins to clog.
Built-in the USA
A majority of STIHL gasoline-powered units sold in the United States are built in the United States from domestic and foreign parts and components.
Shoulder Strap / Carrying System
Using a shoulder strap or carrying system helps distribute the weight of the equipment for increased operator comfort and improved maneuverability.
Fully Lined Drive Shaft
Provides smooth operation and less vibration.
High Tech Polymer Housing
Housings are lightweight, withstand greater impact, and are corrosion-resistant.
Protected Choke Lever/Knob
Helps prevent damage.
When used in conjunction with a harness, the bike handle allows the machine to be easily guided, enabling a smooth horizontal mowing action to cover large areas quickly and efficiently. With soft grips for increased comfort, the bike handle provides greater control and helps reduce operator fatigue.
Multi-Function Control Handle
Having easy access to all of the controls on one comfortable handle makes it easy to complete tasks so the operator’s hand never has to leave the handle.
Throttle Trigger Interlock
Must be depressed before the trigger can be activated.
Air Filter Cover
Easily removed for fast and easy filter cleaning or replacement.
Protected or Enclosed Control Cables
Eliminate dangling and lose wires.
Heavy-Duty Steel-On-Steel Clutch
Centrifugal clutch is designed to reduce slippage.
Protected Spark Plug
Protected yet easy to change.
Protected Spark Arrestor Muffler
Has large baffles which reduce noise levels and contains a screen designed to reduce the emission of sparks.
Upright Translucent Fuel Tank
Allows operator to easily check fuel level before starting work. Upright position makes it easier to refill.
There's a high-performance STIHL trimmer line for every operating condition.
Gearbox attachments are available for this model. View the interchangeable gearbox chart to find out which attachments work with this model.
Trimmer Heads & Blades
Many trimmer heads and blades are available. Find out which ones to use with this model in this chart.
Straps and Harnesses
They distribute the load from your hands to your shoulders. They also help reduce operator fatigue and make it easier to use trimmers, brush cutters, and clearing saws for extended periods.
WEIGHT 12.8 lbs.
CUTTING WIDTH 16.5 in.
ENGINE POWER 1.9 bhp
FUEL CAPACITY 24 oz.
DISPLACEMENT 2.2 cu. in.
Note: Weight displayed does not include cutting attachment or deflector.
You can always count on STIHL to set new standards, and this time, they did it with 4-stroke mixed lubrication technology. The STIHL 4-MIX® engine, which runs on a mixture of fuel and oil like a 2-stroke, gives you the benefits of 4-stroke power without the drawbacks. The STIHL 4-MIX® engine technology allows for quick acceleration, more power, more torque, less noise, less pollution, and more efficient use of fuel, so jobs can be done quickly, quietly, and more easily.
The operator's hand never leaves the handle because the controls are easy and comfortable to use with the thumb.
When used with a harness, the bike handle makes it possible to mow the grass smoothly. The bike handle makes it easy to move the machine around, which makes it great for working on large areas and lessening the amount of work you have to do.
Power tool handles that vibrate a lot can hurt the blood vessels in the hands and arms in the long run. Because of this, STIHL has made an effective anti-vibration system that dampens the engine's oscillations. This makes the vibrations at the handles much less noticeable.
The central clamp enables the ergonomic bike handle to be easily adjusted without tools to suit the height of the user. The handle can be rotated by 90°, making it more compact for transport and storage
Some of the pressure in the cylinder can escape through the decompression valve, so less force is needed on the starter rope.
At the push of a button, a small fuel pump sends fuel to the carburetor. This cuts down on how many starting strokes are needed after long breaks in operations.
The easily accessible paper filter with a long service life means it can go for long intervals without changing. (similar to illustration)
It is important to protect your eyes from flying particles and harmful UV radiation. Therefore a pair of safety goggles/glasses are supplied with the the machine. Note: Additional face protection must be worn when working with brushcutters.