Stihl MS 271 MS 291 MS 291 C-BEQ Instruction Manual

Stihl MS 271 MS 291 MS 291 C-BEQ manual cover

Pages 132

Year 2020

Language(s)

of 132

Stihl MS 271 MS 291 MS 291 C-BEQ Specification

The Stihl MS 271, MS 291, and MS 291 C-BEQ are robust chainsaws designed for efficient performance and ease of use in various forestry and landscaping applications. Each model is engineered with a range of features that cater to both professional and occasional users, ensuring a balance between power, durability, and user comfort.

The MS 271 features a 50.2 cc engine that delivers reliable power for cutting tasks. It incorporates an advanced anti-vibration system to reduce fatigue during prolonged use. The saw also includes a pre-separation air filtration system, enhancing engine longevity by reducing maintenance intervals.

The MS 291 builds on the MS 271's strengths with a slightly larger 55.5 cc engine, providing additional power for more demanding tasks. This model shares the anti-vibration and air filtration systems of the MS 271, emphasizing user comfort and extended engine life. The increased engine capacity makes it an excellent choice for heavy-duty cutting tasks.

The MS 291 C-BEQ version includes all the features of the MS 291 but adds Stihl's Quick Chain Tensioning system for tool-free chain adjustments and the Easy2Start technology, which significantly reduces the effort required to start the chainsaw. This model also integrates a quick-stop chain brake for enhanced safety, making it particularly user-friendly and safe for operators who prioritize convenience and safety in their tools.

All three models feature ergonomic designs, incorporating a well-balanced structure that supports efficient handling. They are equipped with an automatic oiler for consistent lubrication and longer chain life. These chainsaws exemplify Stihl's commitment to quality and performance, making them reliable tools for a range of outdoor cutting tasks.

Stihl MS 271 MS 291 MS 291 C-BEQ F.A.Q.

How do I properly start the Stihl MS 271 chainsaw?

To start the Stihl MS 271, engage the chain brake, set the master control lever to the choke position, pull the starter rope until the engine fires, then move the master control lever to the run position and start the engine.

What is the recommended maintenance schedule for the Stihl MS 291?

For the Stihl MS 291, perform daily maintenance such as checking the chain lubrication and tension, cleaning the air filter, and inspecting the spark plug. Monthly, ensure the guide bar is clean and the clutch is functioning properly.

How can I troubleshoot a Stihl MS 291 C-BEQ that won't start?

Check for fuel issues by ensuring the fuel tank is filled and the fuel is fresh. Inspect the spark plug for fouling, and clean or replace it if necessary. Finally, verify the air filter is clean and not clogged.

What type of fuel mixture should be used for the Stihl MS 271?

Use a 50:1 fuel-to-oil ratio with high-quality, unleaded gasoline and a premium 2-stroke engine oil specifically designed for chainsaws.

How do I adjust the chain tension on a Stihl MS 291?

To adjust the chain tension, ensure the saw is off, loosen the nuts on the sprocket cover, and use the tensioning screw to adjust the chain until it fits snugly against the guide bar but can still be moved by hand.

Why is my Stihl MS 291 C-BEQ overheating?

Overheating may be caused by a dirty air filter, improper fuel mixture, or a clogged cooling system. Clean or replace the air filter, ensure the correct fuel mixture is used, and inspect the cooling fins for obstructions.

What safety precautions should I take while using the Stihl MS 271 chainsaw?

Always wear protective gear, including gloves, goggles, and ear protection. Ensure the chain brake is engaged during startup, and maintain a firm grip on the saw while operating.

How do I clean the air filter on a Stihl MS 291?

Remove the air filter cover, take out the air filter, and clean it with warm soapy water. Allow it to dry completely before reinstalling it. For heavily clogged filters, consider replacing them.

What could cause a Stihl MS 291 C-BEQ to lose power during operation?

Power loss can occur due to a dirty air filter, spark plug issues, or an incorrectly tensioned chain. Clean the air filter, check and replace the spark plug if necessary, and ensure the chain is properly tensioned.

How often should the spark plug be replaced on the Stihl MS 271?

Inspect the spark plug after every 100 hours of operation. Replace it if there are signs of wear or deposits that cannot be removed.