Stihl FS 94 Instruction Manual

Pages 104

Year 2017

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of 104

Stihl FS 94 Specification

The Stihl FS 94 is a professional-grade grass trimmer designed for optimal performance and efficiency in landscaping and gardening tasks. It features a lightweight design, making it easy to handle, which reduces user fatigue during extended periods of operation. The trimmer is powered by a 24.1 cc, 2-stroke engine that delivers robust power while maintaining fuel efficiency, aligning with Stihl's commitment to environmentally friendly practices.

One of the standout features of the FS 94 is its innovative ECOSPEED throttle control. This allows users to easily adjust the engine speed to suit different trimming conditions, optimizing fuel consumption and minimizing noise levels. The trimmer's cutting head is equipped with a semi-automatic line feed system, providing consistent and efficient cutting performance.

The FS 94 also incorporates a simplified starting system with a purge pump primer, reducing the number of pulls required to start the engine. A multifunction control handle is integrated into the design, which consolidates all the essential controls into one convenient location, enhancing user safety and operational efficiency.

Durability is a key aspect of the FS 94, with its robust construction designed to withstand the rigors of professional use. The trimmer is equipped with a solid drive shaft and high-quality components, ensuring long-lasting performance. Additionally, it features a vibration reduction system that enhances user comfort by minimizing the vibrations transmitted to the user's hands.

Overall, the Stihl FS 94 is a versatile and reliable tool that meets the demands of professional landscapers and gardeners, offering a balance of power, precision, and ease of use.

Stihl FS 94 F.A.Q.

How do I start the Stihl FS 94?

To start the Stihl FS 94, set the choke lever to the cold start position, press the fuel pump bulb at least five times, and pull the starter cord until the engine fires. Then, move the choke lever to the run position and pull the starter cord again to start the engine.

What type of fuel should I use for the FS 94?

Use a fuel mix of unleaded gasoline and high-quality 2-stroke engine oil at a ratio of 50:1. Ensure the gasoline has a minimum octane rating of 89.

How can I troubleshoot the FS 94 if it won't start?

Check for fuel in the tank, ensure the spark plug is clean and properly gapped, verify that the air filter is clean, and ensure the on/off switch is in the 'on' position. Also, inspect the fuel line for any leaks or damage.

What regular maintenance should be performed on the FS 94?

Regular maintenance includes cleaning or replacing the air filter, checking and replacing the spark plug annually, inspecting the fuel filter, and checking the cutting attachment for wear and damage.

How do I adjust the carburetor on the Stihl FS 94?

Adjust the carburetor using a flat-head screwdriver, turning the 'L' screw for low-speed adjustments and the 'H' screw for high-speed adjustments. It is recommended to follow the specific adjustments as per the user manual or have it adjusted by a professional.

What should I do if the FS 94 is overheating?

Ensure that the cooling air vents are not blocked, the engine is not running at too high a speed, and that the fuel mixture is correct. If the problem persists, consult a professional technician.

How do I replace the line on the FS 94 trimmer head?

To replace the line, remove the trimmer head cap, take out the spool, insert the new line into the spool, wind it tightly in the correct direction, and reattach the cap securely.

Why is the FS 94 engine running rough?

A rough-running engine can be caused by a dirty air filter, old fuel, or a clogged fuel filter. Check these components and replace or clean them as needed.

What safety precautions should I take when using the FS 94?

Wear protective gear such as safety glasses, gloves, and hearing protection. Ensure bystanders are at a safe distance, and follow all operating instructions provided in the user manual.

How do I store the FS 94 for an extended period?

Drain the fuel tank, run the engine until it stops to clear the carburetor, clean the machine thoroughly, and store it in a dry, dust-free environment. Lubricate any metal parts to prevent rust.