Stihl Ms 291 Problems and How to Fix Them Quickly



Stihl Ms 291 Problems and Solutions

Common Stihl MS 291 problems include issues with starting, irregular idling, and chain lubrication malfunctions. Users also report power loss and difficulty with the chain tensioner.

The Stihl MS 291 chainsaw is a robust and versatile tool designed for homeowners and landowners alike, yet it’s not without its potential faults. Prized for its power and efficiency, the MS 291 is typically reliable, but certain challenges can arise with regular use.

Common concerns reported by users involve complications in starting the engine, which could stem from a flooded carburetor or faulty ignition system. Uneven idling, another typical issue, may indicate a need for carburetor adjustments or cleaning. Additionally, proper chain lubrication is crucial for the saw’s operation, and without it, users might experience premature wear or even damage. Ensuring the saw is properly maintained can often prevent these issues, while also extending the life and improving the performance of your Stihl MS 291 chainsaw.

The Stihl Ms 291 Chainsaw

The Stihl MS 291 is a robust and versatile chainsaw that defines efficiency. It is a go-to tool for many due to its reliable performance and durable design. Created for diverse cutting tasks, this chainsaw has secured its spot as a favorite among professionals and homeowners alike.

Overview of the Stihl Ms 291 Features and Specifications

The MS 291 comes packed with features. It boasts a fuel-efficient engine and advanced technology for easier handling. Its specifics make it stand out:

  • Engine Power: 2.8 kW
  • Power-to-Weight Ratio: 1.6 kg/kW
  • Anti-Vibration System: Yes, for reduced user fatigue
  • Pre-separation Air Filtration: Extends filter life
  • Bar Lengths: Suitable for 16 to 20-inch bars

This chainsaw also sports a compensator that maintains the optimal air/fuel mix for consistent power.

Popularity and Applications of the Stihl Ms 291

Its popularity stems from its all-around capabilities. It’s powerful enough for felling trees and delicate enough for trimming work. You can find the MS 291 in action:

  1. In forestry management
  2. On farms
  3. In landscape maintenance
  4. For firewood cutting
  5. In home gardens

Diverse uses make the Stihl MS 291 a top choice for many cutting conditions. End users value its power, efficiency, and user-oriented design.

Common Problems Encountered With the Stihl Ms 291

The Stihl MS 291 is a robust chainsaw, loved by homeowners and professionals alike for its power and reliability. Yet, even the most reliable tools have their bad days. In this section, we’ll dissect the common issues that users of the Stihl MS 291 might face. Understanding these problems helps in timely troubleshooting and keeps the chainsaw in top-notch condition.

Starting Difficulties and Their Causes

Getting your Stihl MS 291 to start can sometimes be a chore. This may be down to several factors:

  • Fuel System Issues: Empty or old fuel can prevent starting.
  • Spark Plug Failure: A dirty or damaged spark plug needs checking.
  • Air Filter Blockages: A clogged air filter can hinder the starting.

Idling Irregularities and Tuning Problems

Erratic idling can make your Stihl MS 291 unreliable and unsafe to operate. Common causes include:

  • Carburetor Adjustment: May need fine-tuning for optimal performance.
  • Dirty Carburetor: Build-up of dirt affects the engine’s idle.

Power Delivery and Cutting Performance Challenges

Is your chainsaw underperforming? Look out for signs of power loss or poor cutting ability. Potential troubles here might be:

  • Chain Sharpness: A dull chain makes cutting difficult.
  • Fuel Mixture: Incorrect ratios can diminish engine power.
  • Exhaust Clogs: An obstructed muffler can affect power delivery.

Fuel System and Carburetor Complaints

The Stihl MS 291 chainsaw is known for its robust performance and reliability. Yet, sometimes users face issues with its fuel system and carburetor. Such problems can hinder the chainsaw’s functionality. Let’s explore two common issues: clogged fuel filters and the need for carburetor maintenance.

Clogged Fuel Filters and Their Impact on Engine Performance

One common issue is the clogging of fuel filters. When debris or dust enters the fuel system, it can block the filter. This leads to a range of engine performance issues. Symptoms include:

  • Difficulty starting the chainsaw
  • Erratic idling
  • Lack of power during cutting

Clean fuel filters maintain a steady flow of fuel. This ensures your Stihl MS 291 runs smoothly. Here’s how clogged fuel filters can affect your chainsaw:

Starting TroubleHarder to ignite engine
Unstable IdlingIrregular engine speed
Loss of PowerPoor cutting performance

Carburetor Adjustments and Maintenance Necessities

The carburetor is crucial for the engine’s proper mixture of fuel and air. Without regular adjustments and maintenance, this balance can be thrown off. This impacts your chainsaw in different ways:

  1. It can cause the engine to run lean or rich
  2. It may prevent the chainsaw from operating at optimal power levels
  3. It can lead to engine damage over time

Regular maintenance and correct adjustments keep the carburetor functioning well. Here’s a quick checklist for maintaining your chainsaw’s carburetor:

  • Check the air filter regularly and clean or replace it as needed
  • Inspect the fuel lines for cracks or leaks
  • Adjust the carburetor settings according to the manual specifications
  • Use fresh, clean fuel for optimal engine health

Mechanical Wear and Tear

Crafting robustness in tools like the Stihl MS 291 chainsaw is key to performance. But, no machine escapes the tick-tock of time. Mechanical wear and tear slow even the mightiest. Understanding and mitigating these issues can lead to longer lifespan and better functioning of your chainsaw.

Bar and Chain Life Expectancy and Replacement Frequency

A Stihl MS 291 chainsaw’s bar and chain are its cutting lifeline. Regular checks are crucial. Look for signs like uneven wear, dullness, and damage.

  • Dull chains make cutting harder and dangerous.
  • Uneven bars can cause kickbacks and poor cuts.

Replace the bar and chain when these signs appear. Most users find this is every few years with typical use. Heavy-duty tasks may shorten this expectancy.

Engine Components Wear Out and Preventative Maintenance Tips

The engine is the heart of your Stihl MS 291. Wear and tear here mean trouble. Parts like spark plugs, air filters, and pistons wear out over time.

Here are tips to keep your engine happy:

ComponentMaintenance Tip
Spark PlugClean/replace yearly for best performance.
Air FilterCheck and clean regularly; replace when dirty.
Fuel SystemUse clean fuel, and empty before storage.

Regular maintenance is your best defense. Treat your chainsaw to timely tune-ups. This will help avoid unexpected break-downs. Stay ahead with a routine check on your engine parts.

Even with the best equipment, errors can happen. The STIHL MS 291 chainsaw is a reliable tool, but it’s not immune to mishaps caused by users. These mistakes can cause malfunctions or even harm the chainsaw. Let’s find out how to prevent these issues.

Importance of Reading the Operating Manual

Always start with the manual. Knowing your chainsaw is key. The manual guides you through setup, use, and maintenance. Many problems with the MS 291 arise simply because users skip this step.

  • Learn the correct start-up procedure.
  • Understand safety features and how to use them.
  • Get familiar with maintenance schedules.

Common Operator Errors Leading to Chainsaw Malfunctions

Common mistakes can cause big problems.

Ignoring chain tension.Leads to poor cuts and chain damage.
Using dull or damaged blades.Causes extra wear and potential safety hazards.
Forgetting to check fuel and oil levels.Can damage the engine or lead to poor performance.
  1. Adjust the chain correctly before use.
  2. Sharpen the blades when necessary.
  3. Top up fuel and oil as needed.

Remember, take care of your chainsaw, and it will take care of your cutting tasks!

Learn also: Stihl M Tronic Problems: Expert Repair Solutions

Troubleshooting and Resolving Stihl Ms 291 Issues

The Stihl MS 291 chainsaw is renowned for its robust performance in landscaping and farming tasks. Like any equipment, it may encounter problems affecting its functionality. Identifying and fixing these issues promptly ensures the longevity and efficiency of your chainsaw. This guide assists you in troubleshooting some of the most common Stihl MS 291 problems and outlines when it’s best to attempt a DIY fix or call in the professionals.

Step-by-step Diagnostic Approach For Common Problems

Begin with the basics: Check fuel mix and air filters. Are they clean and correctly prepared? Consider this checklist to diagnose issues:

  1. Check the fuel mixture: It should be fresh and with the correct oil ratio.
  2. Inspect the air filter: Clean or replace if dirty to ensure proper airflow.
  3. Examine the spark plug: Look for damage or fouling and replace if necessary.
  4. Review the starter mechanism: Is it functioning smoothly?
  5. Test the carburetor settings: Adjust if the engine isn’t running correctly.
  6. Analyze the chain tension: The chain should move freely but not be too loose.
  7. Look for clogs in the fuel and air intake systems: Remove any debris.

Closely follow the user manual for guidance on adjusting and maintaining specific parts.

When to Seek Professional Repair Services vs DIY Fixes

Complex internal problems, such as carburetor malfunctions or compression issues, usually require a professional’s touch.

  • DIY Fixes: Fuel mix adjustments, air filter cleaning, spark plug replacement.
  • Professional Repairs: Internal engine work, major carburetor issues, electronic malfunctions.
ProblemDIY FixSeek Professional
Fouled Spark PlugYesNo
Carburetor AdjustmentInitial attemptsIf issue persists
Engine RebuildNoYes

Always consult the user manual or a professional if you’re unsure about a repair.

FAQs for Stihl Ms 291 Problems

What Does Ms Stand For on Stihl Chainsaws?

“MS” on STIHL chainsaws stands for “Motorsäge,” which is German for “chainsaw. ” It denotes the company’s range of gasoline-powered chainsaws.

Why is My Stihl Not Working?

Your STIHL may not work due to several reasons such as a dirty air filter, old fuel, a flooded engine, or a defective spark plug. Check these components and replace or clean as necessary. Always ensure proper maintenance for optimal performance.

Why is My Stihl Chainsaw Dying?

Your STIHL chainsaw may be dying due to a clogged air filter, stale fuel, a dirty spark plug, or a carburetor issue. Regular maintenance checks can prevent these common problems.

How Much Does a Stihl Ms 291 Weigh?

The Stihl MS 291 chainsaw weighs approximately 12. 3 pounds without the cutting equipment.


Facing issues with the Stihl MS 291 chainsaw can be frustrating, but solutions are often simple. Regular maintenance and proper use consistently prove key in longevity. If challenges persist, professional advice or repair might be the next step. Keep your chainsaw in top condition, and it will serve you well for all your outdoor tasks. Chainsaw Hive is stirring up a chainsaw storm! Don’t miss out on the thrilling Knowledge section updates.

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