Stihl KM 111 R KM 131 R Instruction Manual

Pages 72

Year 2020

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Stihl KM 111 R KM 131 R Specification

The Stihl KM 111 R and KM 131 R are versatile and robust powerheads designed for demanding landscaping tasks. Both models are part of Stihl's KombiSystem, allowing users to interchange various attachments to handle multiple tasks with a single engine unit. The KM 111 R is powered by a 31.4 cc 4-MIX® engine that combines the benefits of a two-stroke and a four-stroke engine, delivering efficient fuel consumption and reduced emissions without compromising power. The KM 131 R, on the other hand, features a 36.3 cc 4-MIX® engine, providing even more power for heavy-duty operations.

Both models include a simplified starting procedure with a semi-automatic choke lever and a one-touch stop switch, enhancing user convenience and minimizing downtime. The ergonomic loop handle design promotes comfortable operation and precise control, even during extended use. These powerheads are equipped with a multi-function control handle that consolidates all essential controls for easy access, reducing operator fatigue.

The Stihl KM 111 R and KM 131 R are built with a robust and durable construction, featuring a split shaft design for easy transport and storage. The quick-release coupling allows for fast and tool-free attachment changes, enabling seamless transitions between tasks such as trimming, edging, pruning, and more. Both models are compatible with a wide range of Stihl KombiSystem attachments, making them ideal for professional landscapers and demanding homeowners who require reliable and versatile equipment. These powerheads meet stringent emission standards, ensuring compliance with environmental regulations while delivering exceptional performance and longevity.

Stihl KM 111 R KM 131 R F.A.Q.

How do I start the Stihl KM 111 R engine?

Ensure the stop switch is in the "I" position, press the primer bulb 5-6 times, set the choke to cold start, and pull the starter rope until the engine fires. Move the choke to the run position and pull the rope again to start.

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

Use a 50:1 fuel mixture of unleaded gasoline and Stihl 2-stroke engine oil. Ensure the gasoline has a minimum octane rating of 89.

How often should I clean the air filter on my Stihl KM 111 R?

Clean the air filter after every 10 hours of operation or more frequently if working in dusty conditions.

What should I do if my Stihl KM 131 R is not starting?

Check the fuel mixture, ensure the spark plug is not fouled, verify the air filter is clean, and inspect the primer bulb for any damage.

How can I maintain the cutting attachment on my Stihl KM 111 R?

Regularly inspect the cutting attachment for wear or damage, sharpen blades as needed, and ensure all components are securely tightened.

What is the correct idle speed for the Stihl KM 131 R?

The correct idle speed is approximately 2,800 RPM. Adjust the idle screw on the carburetor if necessary to maintain this speed.

How do I replace the spark plug on the Stihl KM 111 R?

Remove the spark plug boot, use a spark plug wrench to unscrew the old plug, and install a new NGK CMR6H spark plug, tightening it securely.

What should I check during the routine maintenance of my Stihl KM 131 R?

Check the air filter, spark plug, fuel filter, and clean the cooling fins. Inspect the throttle trigger and stop switch for proper function.

How do I store my Stihl KM 111 R for an extended period?

Empty the fuel tank and run the engine until it stops. Clean the unit thoroughly and store in a dry, sheltered location away from direct sunlight.

What type of oil should I use in the Stihl KM 131 R?

Use high-quality 2-stroke engine oil specifically formulated for air-cooled engines, preferably Stihl brand.