Stihl FC-MM Yard Boss Instruction Manual

Pages 36

Year 2020

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Stihl FC-MM Yard Boss Specification

The Stihl FC-MM Yard Boss is a versatile and robust multi-functional tool designed for efficient yard maintenance. At the heart of the FC-MM is its powerful, fuel-efficient engine that delivers consistent performance while minimizing emissions, ensuring compliance with stringent environmental standards. This tool features a compact, lightweight design, enhancing maneuverability and ease of use, which makes it ideal for both residential and light commercial applications.

The FC-MM Yard Boss is equipped with a reliable and easy-to-start recoil system, reducing the effort required to get the machine running. Its ergonomic handles provide superior comfort and control, allowing users to operate the device for extended periods without fatigue. The tool is designed to accommodate various optional attachments, significantly expanding its functionality to include edging, aerating, dethatching, and more, making it an all-in-one solution for diverse gardening tasks.

The robust construction of the Stihl FC-MM ensures durability and longevity, even under demanding conditions. Its components are engineered for minimal maintenance, featuring easy-access points for routine servicing, enhancing the machine's lifespan. The Yard Boss's innovative design includes a convenient storage position, allowing it to be stowed away efficiently, saving valuable space. Overall, the Stihl FC-MM Yard Boss is a reliable and versatile tool that meets the needs of homeowners and professional landscapers looking for high performance, durability, and ease of use in a single, compact package.

Stihl FC-MM Yard Boss F.A.Q.

How do I start the Stihl FC-MM Yard Boss?

To start the Stihl FC-MM Yard Boss, ensure the unit is on a flat surface. Set the choke lever to the closed position, press the fuel pump bulb several times until fuel is visible, and set the throttle trigger to the start position. Pull the starter handle slowly until resistance is felt, then pull quickly and firmly. Once the engine starts, move the choke lever to the open position.

What type of fuel should I use for the Stihl FC-MM Yard Boss?

Use a high-quality 2-cycle engine oil mixed with unleaded gasoline with a minimum octane rating of 89. The fuel mixture should be at a 50:1 ratio (2.6 ounces of oil per gallon of gasoline).

How do I maintain the air filter on the Stihl FC-MM Yard Boss?

Regularly check the air filter for dirt and damage. Clean it by removing the cover and gently tapping the filter to remove loose dirt. If necessary, wash the filter with warm, soapy water and allow it to dry completely before reinstalling. Replace the filter if it is damaged or excessively dirty.

What is the correct way to install attachments on the Stihl FC-MM Yard Boss?

Ensure the engine is off and cool before installing attachments. Align the attachment with the shaft and push it until it clicks into place. Secure the attachment using the locking pin. Refer to the user manual for specific instructions related to each type of attachment.

How can I troubleshoot if the Stihl FC-MM Yard Boss won't start?

Check the fuel tank to ensure it is filled with the correct fuel mixture. Inspect the spark plug for dirt and wear, and clean or replace it if necessary. Verify that the air filter is clean and that the choke is set correctly. If the problem persists, contact a professional technician.

How often should I sharpen the blades on the Stihl FC-MM Yard Boss?

The blades should be inspected and sharpened regularly, depending on usage. If you notice a decrease in performance or if the blades are visibly dull, it's time to sharpen them. Generally, sharpening every 20-30 hours of operation is recommended.

What safety precautions should I take while using the Stihl FC-MM Yard Boss?

Always wear appropriate personal protective equipment, including gloves, eye protection, and sturdy footwear. Ensure the area is clear of debris and bystanders before operating. Be aware of your surroundings and keep a firm grip on the machine handles.

How do I store the Stihl FC-MM Yard Boss for the off-season?

Clean the unit thoroughly, removing all dirt and debris. Drain the fuel tank and run the engine until it stops to clear the carburetor. Remove the spark plug and apply a small amount of oil into the cylinder, then pull the starter handle to distribute the oil. Store the unit in a dry, sheltered location.

What should I do if the Stihl FC-MM Yard Boss vibrates excessively?

Excessive vibration can be caused by loose or damaged attachments, unbalanced blades, or engine issues. Inspect the machine for any loose parts, tighten any loose bolts, and ensure attachments are correctly installed. If vibration persists, consult a professional technician.

How do I change the spark plug on the Stihl FC-MM Yard Boss?

Turn off the engine and allow it to cool. Disconnect the spark plug wire and use a spark plug wrench to remove the old spark plug. Check the gap on the new spark plug and adjust if necessary. Install the new spark plug by hand to avoid cross-threading, then tighten it with the wrench. Reconnect the spark plug wire.