Stihl BF-MM BK-MM Yard Boss Instruction Manual

Stihl BF-MM BK-MM Yard Boss manual cover

Pages 40

Year 2020

Language(s)

of 40

Stihl BF-MM BK-MM Yard Boss Specification

The Stihl BF-MM BK-MM Yard Boss is a versatile, multi-functional tool designed to meet various gardening and landscaping needs. At its core, the system is powered by a reliable and efficient 27.2 cc (1.66 cu. in.) 2-stroke engine, known for its robust performance and ease of maintenance. This engine provides ample power to handle a range of attachments, making the Yard Boss a highly adaptable tool for homeowners and professionals alike.

The BF-MM cultivator attachment is engineered to till and aerate soil effectively, featuring specially designed tines that break up tough soil and prepare garden beds with ease. The BK-MM bolo tines are perfect for deeper soil penetration and are crafted to handle more demanding tasks, such as breaking up clay or compacted soil, ensuring optimal soil condition for planting.

The Yard Boss's ergonomic design includes a comfortable, adjustable handlebar, allowing users to customize the tool's height and angle for maximum comfort during prolonged use. Its lightweight construction and balanced weight distribution facilitate easy maneuverability, reducing user fatigue.

Additionally, the Yard Boss supports a quick-change system that allows for swift attachment swaps without the need for additional tools, enhancing its functionality and convenience. This system is compatible with a range of optional attachments, such as edgers, dethatchers, and sweepers, further expanding its application versatility.

The Stihl BF-MM BK-MM Yard Boss is a compact, powerful, and flexible solution ideal for diverse yard maintenance tasks, offering durability and performance in a user-friendly package.

Stihl BF-MM BK-MM Yard Boss F.A.Q.

How do I start the Stihl BF-MM BK-MM Yard Boss?

To start the Stihl BF-MM BK-MM Yard Boss, ensure it is on a flat surface. Set the choke to the start position, press the primer bulb several times until fuel is visible, and pull the starter rope firmly. Once the engine starts, move the choke to the run position.

What maintenance should be regularly performed on the Yard Boss?

Regular maintenance includes checking and cleaning the air filter, inspecting and replacing the spark plug if necessary, lubricating moving parts, and examining the fuel system for leaks or blockages.

How can I troubleshoot if the Yard Boss does not start?

If the Yard Boss does not start, verify that there is fresh fuel in the tank. Check the spark plug for fouling and replace if necessary. Ensure the air filter is clean and the choke is set correctly.

What should I do if the Yard Boss is vibrating excessively during use?

Excessive vibration may be caused by imbalanced or damaged attachments. Check for debris lodged in the tines or attachments, and ensure all parts are securely fastened.

How do I change the attachments on the Stihl BF-MM BK-MM Yard Boss?

To change attachments, turn off the engine and disconnect the spark plug. Use the provided tool to loosen the locking mechanism, remove the current attachment, and then secure the new attachment in place.

What fuel mixture should be used for the Yard Boss?

The Stihl BF-MM BK-MM Yard Boss requires a fuel mixture of 50:1 ratio of gasoline to Stihl 2-cycle engine oil. Ensure the mixture is well shaken before use.

How often should the spark plug be replaced?

The spark plug should be inspected and cleaned every 25 hours of operation and replaced annually or if it shows signs of wear or damage.

What is the correct way to store the Yard Boss when not in use?

Before storage, clean the Yard Boss thoroughly, empty the fuel tank, and run the engine until it stops to ensure no fuel is left in the carburetor. Store it in a dry, well-ventilated area.

How can I sharpen the tines on the Yard Boss?

Remove the tines and use a flat file to sharpen them. Follow the original bevel angle and ensure each tine is sharpened evenly. Reattach securely after sharpening.

What safety precautions should be taken while operating the Yard Boss?

Wear appropriate protective gear including gloves, goggles, and ear protection. Keep bystanders away and be mindful of the working area to avoid hitting hidden obstacles.