Stihl MS 391 Review – Is This Right Model For You?

You have been lusting after the Stihl ms 391 for months but you don’t know if this is the right model for you. Will it live up to your expectations? And why do so many of your family and friends like it?  The gas-powered chainsaw is a great tool used by homeowners and carpenters alike.

If you have to fell trees for a living, your first thought is going to be about safety. The ms 391 has numerous safety features that can help protect you and the people around you while you work.  This post will answer if the Stihl ms 391 is worth investing in for your needs.

One of the Best Stihl Chainsaws-MS 391

The STIHL MS 391 is a chain saw that is designed for the toughest jobs. It has many useful features, making it a popular choice among professional loggers and weekend warriors alike.

A STIHL MS 391 is one of the most popular models in the company’s lineup. It’s built with high-quality materials and offers plenty of power to get through tough jobs without bogging down like some other chainsaw manufacturers do.

There are many reasons why this chainsaw makes an excellent choice for professional or hobbyist users, including its dependable performance with every cut and its ease of operation.

Specifications For The Stihl ms 391

  • Carburetor: diaphragm type
  • Engine Power: 2.6kW (3.5 bhp)
  • Engine Capacity: 56.5cm³ (3.46cu.inch)
  • Cylinder Bore: 50mm (1.97 inch)
  • Piston Stroke: 40mm (1.57 inch)
  • Power-to-Weight Ratio: 3.7 kg/kW (2.7 lb/bhp)
  • Idling Speed: 2800 rpm
  • Maximum Power Speed: 12000 rpm
  • Maximum Torque Speed: 8000 rpm
  • Spark Plug Thread Size: 14mm (0.55 inch)
  • Spark Plug Gap: 0.5mm (0.02 inch)
  • Fuel Tank Volume: 0.45 liters (0.12 US gallon, 0.12 Imperial gallon)
  • Oil Tank Volume: 0.33 liters (0.09 US gallon, 0.08 Imperial gallon)

Highlights of Stihl ms 391

One of the best features about this chainsaw is that it won’t bog down in thick wood or when cutting at an angle because there are two different gears available on this saw: one low-speed gear for smaller logs and branches (up to 4 inches thick) and another high-speed gear for larger pieces (up to 12 inches). This means you can tackle any job without having to worry about the chainsaw bogging down while you’re doing it!

The Stihl ms 391 comes with two cutting attachments: a 22cc petrol engine and a 24cc petrol engine. Both engines include GASSTAND technology that allows you to use the same mixture of fuel and oil in both engines without the need for filters or changes. That means you don’t have to keep track of different parts or try to remember which parts fit which engine.

There are also some great safety features on the Stihl ms 391. The electric start makes it easy to start without using a lot of effort or muscle strength, but there’s also an automatic return feature that turns it back on if you let go of the trigger too soon. 

Stihl ms 391 Functions

Stihl ms 391

The Stihl ms391 has become a firm favourite with homeowners, farmers, hunters and contractors alike.

It has a powerful 50cc engine which is capable of cutting through most jobs with ease, whilst still being reasonably lightweight. It has an excellent anti-vibration system which reduces user fatigue making it easy to use for long periods of time (plus it’s always nice to have a vibration free chainsaw). It also has an excellent oiling system.

MS391 functions as a multipurpose machine. It can be used for cutting bush, branches, firewood, and small logs in lumber mills. It can cut up to 3/16″ thick steel down to a length of 1″ or more.

MS 391 chainsaw is an all-purpose saw that can handle many different types of wood and metal. The machine has a 14″ blade with up to 48 teeth per inch for maximum cutting power and efficiency.

Common Problems and Their Fixes

The STIHL MS 391 chainsaw is a useful tool for homeowners and professionals alike, with its two-stroke engine that delivers high power output. However, even the best chainsaws can suffer from problems at some point or another.

Some of the most common STIHL MS 391 problems include:

  • Oil leak: The machine will leak oil if the pump cover gasket is damaged or worn out. The oil pump drive gear can also cause leaks if it is damaged or cracked.
  • Cylinder fins: If the cylinder fins are damaged, your machine may leak fuel and air mixture into the crankcase, which can result in poor starting performance and low engine power.
  • Piston ring: If you are experiencing a weak engine compression, it may be because your piston ring is damaged.
  • Carburetor: Your machine’s carburetor may become clogged if there is dirt or debris in the air filter. If this happens, you need to clean your air filter system.
  • Air filter system: In order to prevent your machine’s carburetor from becoming clogged, you should check and clean your air filter system on a regular basis.

Stihl MS 391 Replacement Parts

Stihl ms391

The most common parts that need replacing are:

  • Spark plug
  • Air filter element
  • Carburetor gasket

Whether you’re looking for replacement parts for your Stihl MS391 or require a new starter, we’ve got you covered. All this parts are genuine Stihl parts and come with a 12 month warranty. 

Where to find Stihl ms 391 for sale?

Stihl MS 391

There are many ways that you can find Stihl ms 391 for sale, but the easiest way is by using Google. Just type in “Stihl ms 391” and then click on the first link that comes up. You will see all of the different stores that sell this model chainsaw. This method is also very fast because there are only a few stores that sell this type of chainsaw.

Another way to find Stihl ms 391 for sale is by looking at online classifieds or local classifieds in your area. Many people have posted ads about their used tools on these sites before and you may be able to get lucky enough to find them there. The only downside to this method is that you may not be able to find any information about the seller or if they are reputable. 

Stihl MS 391 Best Price

If you are searching for the cheapest Stihl MS 391 price in the market, then look no further. We have found the best price for this chainsaw and also show you some of its features and specifications.


  • Stihl MS391 Chainsaw 20″ Bar 3/8″ .050 Gauge 72 DL Chain NEW. $449.99. Buy It Now. Free Shipping.
  • STIHL MS391 CHAINSAW POWERHEAD ONLY – NO BAR OR CHAIN! $400.00. Buy It Now. or Best Offer.
  • STIHL MS391 Chainsaw with 20″ Bar and NEW Chain. $475.00. Buy It Now. Free Shipping

Review Conclusion Stihl MS 391

STIHL MS 391 is a great saw as it provides a high power output without requiring a lot of fuel to do so. It’s also lightweight and easy to handle, making it ideal for all-day jobs. This robust chainsaw with advanced engine technology & durability. The MS 391 is perfect for felling, firewood cutting & storm cleanup tasks.