Stihl FS 131 FS 131 R Instruction Manual

Pages 120

Year 2020

Language(s)

of 120

Stihl FS 131 FS 131 R Specification

The Stihl FS 131 and FS 131 R are robust and powerful brushcutters designed for professional use in demanding environments. These models are equipped with a 36.3 cc 4-MIX® engine, which combines the benefits of a two-stroke and a four-stroke engine, offering impressive power output of 1.4 kW while maintaining fuel efficiency and reducing emissions. The FS 131 is crafted for versatility, featuring a straight shaft design suitable for various trimming applications, while the FS 131 R features a loop handle for enhanced maneuverability in tight spaces.

Both models come with a large fuel tank capacity of 24 ounces, ensuring extended operation times between refills. The ergonomic design is complemented by an anti-vibration system, which minimizes user fatigue during prolonged use. The FS 131 and FS 131 R also incorporate a simplified starting procedure with a decompression valve and a purge pump, ensuring reliable and easy starts.

The cutting head of these brushcutters supports a variety of attachments, including metal blades and nylon line heads, making them adaptable for cutting through dense grass, weeds, and light brush. The overall weight of the FS 131 is approximately 12.1 pounds, and the FS 131 R is slightly lighter at 12.1 pounds, both ensuring ease of handling without compromising on durability.

Additional features include a multi-function control handle for easy access to all controls and an adjustable bike handle on the FS 131 for improved comfort and control. These brushcutters are engineered to meet the needs of landscaping professionals, providing reliability and high performance in various challenging outdoor conditions.

Stihl FS 131 FS 131 R F.A.Q.

What is the correct fuel mixture for the Stihl FS 131 R?

The Stihl FS 131 R requires a fuel mixture of 50:1, which consists of 50 parts gasoline to 1 part 2-stroke engine oil.

How do I replace the trimmer line on the Stihl FS 131?

To replace the trimmer line, first turn off the engine and disconnect the spark plug. Remove the trimmer head, take out the old line, and replace it with a new line according to the manufacturer's specifications.

What should I do if my FS 131 won't start?

Check the fuel level and ensure the fuel is fresh. Inspect the spark plug for wear or damage, and clean or replace it if necessary. Make sure the air filter is clean and the choke is set correctly.

How often should I clean the air filter on the FS 131 R?

The air filter should be checked and cleaned after every 10 hours of operation, or more frequently if operating in dusty conditions.

What type of maintenance does the FS 131 require?

Regular maintenance includes checking and replacing the spark plug, cleaning the air filter, inspecting the fuel system, and lubricating the gear head. Follow the maintenance schedule in the user manual for detailed instructions.

How can I adjust the carburetor on the FS 131?

Carburetor adjustments should be done by a professional. However, you can adjust the idle speed using the screw marked "LA" on the carburetor. Turn the screw clockwise to increase the idle speed and counter-clockwise to decrease it.

What is the proper storage procedure for the FS 131 during the off-season?

For off-season storage, empty the fuel tank and run the engine until it stops. Clean the unit thoroughly, check for any damage or wear, and store it in a dry place. Consider removing the spark plug and adding a few drops of oil into the cylinder to prevent corrosion.

How do I properly start the FS 131 R?

To start the FS 131 R, ensure the choke is engaged, press the primer bulb several times until fuel is visible, set the throttle to start, and pull the starter cord until the engine fires. Disengage the choke and pull the cord again to start the engine.

What should I do if the FS 131 is vibrating excessively?

Excessive vibration can be caused by a bent or unbalanced cutting attachment. Inspect the trimmer head and replace any damaged parts. Ensure the cutting attachment is properly balanced and securely fastened.

Can I use the FS 131 for edging tasks?

Yes, the Stihl FS 131 can be used for edging by tilting the trimmer head vertically. Ensure you use the appropriate cutting attachment and maintain control to achieve clean edges.