Stihl MS 291 Problems and How to Fix Them

As an owner of a Stihl MS 291 chainsaw, you know that it is one of the most powerful and reliable machines on the market. However, even the best tools can sometimes encounter issues, and it’s important to be aware of common problems that might arise with your chainsaw.

In this article, I will take a closer look at some of the most common Stihl MS 291 problems and offer solutions to help you troubleshoot them effectively.

Whether you’re a professional lumberjack or a homeowner looking to keep your yard in order, our guide will help you keep your chainsaw in top condition and ensure that it lasts for years to come.

Stihl Ms 291 Faces Common Problems Starting issues, Chain Tension Issues, Fuel System Failures, Overheating, Carburetor Issues, Oil Pump Problems, Chain Brake Malfunctions

STIHL MS 291 Problems


Starting Problems

One of the most frustrating issues that you may encounter with your Stihl MS 291 chainsaw is difficulty starting the engine.

This problem can be caused by a number of factors, including a clogged air filter, a flooded engine, or a faulty ignition system.

To fix starting problems, you should first check the air filter and clean or replace it as needed.

If the air filter is clean, try adjusting the choke and throttle settings and pulling the starter cord again.

If the engine is still flooded, you can try removing the spark plug and pulling the cord to clear out excess fuel.

If none of these solutions work, it’s possible that the ignition system may be at fault. In this case, you should take your chainsaw to a professional mechanic for further diagnosis and repair.

Chain Tension Issues

Another common problem that Stihl MS 291 owners may encounter is issues with chain tension.

Over time, the chain on your chainsaw may become loose or stretch, which can affect its cutting performance and even damage the machine.

To fix chain tension problems, start by turning off the engine and removing the guide bar and chain.

Then, use a chainsaw file to sharpen the chain and ensure that it is properly lubricated. Next, reattach the chain and adjust the tension to the manufacturer’s specifications.

If the chain tension continues to be a problem, you may need to replace the chain or guide bar altogether. Be sure to use genuine Stihl parts to ensure the best performance and safety for your machine.

Fuel System Failures

Another potential issue with the Stihl MS 291 is failures within the fuel system.

This can include problems with the carburetor, fuel filter, or fuel lines, and can lead to decreased engine performance or even engine failure.

To fix fuel system failures, start by checking the fuel filter and replacing it if it is dirty or clogged.

You can also clean the carburetor and fuel lines with carburetor cleaner to remove any debris or buildup that may be affecting their function.

If these steps do not resolve the problem, you may need to take your chainsaw to a professional mechanic for further diagnosis and repair.

Overheating Problem

stihl ms 291 problems & issues

Finally, another issue that Stihl MS 291 owners may encounter is overheating.

This can be caused by a variety of factors, including running the engine at high RPMs for an extended period of time, using a dull chain, or operating the chainsaw in hot or humid conditions.

To prevent overheating, be sure to use a sharp chain and avoid running the engine at high RPMs for extended periods of time.

You should also ensure that the engine is properly lubricated and that the air filter is clean.

If you do encounter overheating, turn off the engine and let it cool down for several minutes before attempting to restart it.

If the problem persists, you may need to take your chainsaw to a professional mechanic for further diagnosis and repair.

Carburetor Problems

The carburetor is an important component of the Stihl MS 291, and if it fails, it can cause a variety of issues, including difficulty starting and poor performance. Check and replace your Carburetor if Faulty.

Ms 291 Oil Pump Problem

The oil pump is in charge of lubricating the chain, and if it isn’t working properly, the chain and bar may sustain severe wear and tear. A blocked oil filter or a broken oil pump may be to blame if you observe a decrease in the flow of oil to the chain.

Chain Brake Issue

A safety device called the chain brake is intended to stop the chain in the event of a kickback. Using your Stihl MS 291 chainsaw can be risky if the chain brake isn’t working properly. A worn-out or damaged brake band, a broken spring, or a broken brake handle are typical causes of chain brake problems.


while the Stihl MS 291 is a powerful and reliable chainsaw, it is not immune to common problems that can arise with any machine.

By familiarizing yourself with these issues and following our troubleshooting tips, you can ensure that your chainsaw remains in top condition and continues to perform at its best.

Remember to always use genuine Stihl parts and accessories when repairing or maintaining your chainsaw, and to follow all safety guidelines to prevent accidents and injuries.

If you do encounter a problem with your Stihl MS 291 that you cannot solve on your own, don’t hesitate to take it to a professional mechanic for diagnosis and repair.

By addressing problems early and maintaining your chainsaw properly, you can enjoy years of reliable performance and efficient cutting power from your Stihl MS 291.