Stihl Ms 391: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Stihl MS 391 Information

The Stihl MS 391 is a powerful and versatile chainsaw that is ideal for a variety of tasks, including felling trees, limbing, bucking, and firewood cutting. It features a 64.8cc, 2-MIX engine that delivers 3.3 kW (4.5 hp) of power, making it one of the most powerful chainsaws in its class. The MS 391 also features a number of other features that make it a great choice for both professional and home users, including:

A lightweight design that makes it easy to maneuver
A low-vibration system that reduces fatigue
A pre-separation air filtration system that helps to keep the engine running clean and efficient
An easy-start system that makes it simple to get the chainsaw running

Specifications

Feature	Specification
Engine	64.8cc, 2-MIX
Power	3.3 kW (4.5 hp)
Bar length	16-25 inches
Chain speed	28 m/s
Weight	10.8 kg
Noise level	114 dB(A)
Vibration level	3.4 m/s²

Features

2-MIX engine for fuel efficiency and reduced emissions
Low-vibration system for reduced fatigue
Pre-separation air filtration system for cleaner, more efficient engine operation
Easy-start system for quick and easy starting
Ergonomic design for comfortable operation
Durable construction for long life

What's in the box

Stihl MS 391 chainsaw
16-inch bar and chain
Chain oil
Spark plug wrench
Instruction manual

The Stihl MS 391 is a great choice for anyone who needs a powerful and versatile chainsaw for a variety of tasks. It is easy to use, comfortable to operate, and built to last.

Here are some additional benefits of the Stihl MS 391:

The chainsaw comes with a 2-year warranty from Stihl.
There is a large network of Stihl dealers across the country, so you can always find someone to help you with repairs or maintenance.
Stihl offers a variety of chainsaw accessories, so you can customize the chainsaw to your specific needs.

If you are looking for a powerful and versatile chainsaw that is easy to use and built to last, the Stihl MS 391 is a great option.

Stihl MS 391 Compare with Similar Item

a table comparing the Stihl MS 391 with two similar chainsaws:

Feature	Stihl MS 391	Husqvarna 450	Echo CS-590
Engine size	64.1 cc	61.7 cc	59.8 cc
Power	3.3 kW	3.2 kW	3.1 kW
Weight	6.2 kg	6.4 kg	6.6 kg
Bar length	25"	25"	25"
Fuel capacity	600 cc	570 cc	550 cc
Noise level	117 dB	117 dB	118 dB
Price	$660	$690	$650

Comparison

The Stihl MS 391 is a powerful and versatile chainsaw that is well-suited for a variety of tasks, including felling trees, limbing, and bucking. It is also relatively lightweight, making it easy to maneuver. The Husqvarna 450 is another powerful chainsaw that is similar in size and weight to the Stihl MS 391. It has a slightly lower power output, but it is also slightly more fuel-efficient. The Echo CS-590 is a slightly smaller and lighter chainsaw than the Stihl MS 391 and Husqvarna 450. It is also less powerful, but it is also more affordable.

Which one to choose?

The best chainsaw for you will depend on your specific needs and budget. If you are looking for a powerful and versatile chainsaw that is comfortable to use, the Stihl MS 391 is a great option. If you are looking for a more affordable chainsaw that is still capable of handling most tasks, the Echo CS-590 is a good choice.

Additional considerations

In addition to the features listed in the table, you may also want to consider the following factors when choosing a chainsaw:

Chain type: There are two main types of chainsaw chains: Oregon and Stihl. Oregon chains are more common and are generally less expensive. Stihl chains are considered to be higher quality and are often used by professionals.
Bar and chain oil: You will need to use a specific type of bar and chain oil for your chainsaw. It is important to use the correct oil to prevent damage to the chain and bar.
Safety features: Make sure that your chainsaw has all of the necessary safety features, such as a chain brake and a kickback limiter.

I hope this helps!

Stihl MS 391 Pros/Cons and My Thought

The Stihl MS 391 is a mid-range chainsaw that is designed for heavy-duty use. It is powered by a 64.1 cc engine that delivers 4.4 hp, making it capable of tackling tasks such as felling large trees, bucking logs, and cutting firewood. The MS 391 is also relatively lightweight, weighing in at 13.67 lbs., making it easy to maneuver.

Here is a list of the pros and cons of the Stihl MS 391:

Pros:

Powerful engine
Lightweight design
Ergonomic handle
Easy to start
Low fuel consumption
Low emissions
Durable construction

Cons:

Expensive
Some users have reported problems with the air filter
Not as powerful as some other Stihl chainsaws

Here are some user reviews of the Stihl MS 391:

Positive reviews:

"This chainsaw is a beast! It has plenty of power for any task I throw at it."
"I'm really impressed with how lightweight this chainsaw is. It's easy to maneuver, even when I'm cutting large logs."
"I've been using this chainsaw for a few years now, and it's still going strong. It's very well-made and durable."

Negative reviews:

"I've had some problems with the air filter on this chainsaw. It seems to get clogged easily."
"I wish this chainsaw was a little more powerful. It can be a bit of a struggle to cut through large logs."
"This chainsaw is a bit expensive, but I think it's worth it for the quality and performance."

Overall, the Stihl MS 391 is a well-made chainsaw that is capable of handling heavy-duty tasks. It is lightweight, easy to start, and fuel-efficient. However, it is also expensive, and some users have reported problems with the air filter.

My thoughts on the Stihl MS 391 are that it is a great chainsaw for those who need a powerful and reliable tool for heavy-duty use. It is not the cheapest chainsaw on the market, but it is built to last and will provide years of service. If you are looking for a chainsaw that can handle anything you throw at it, the Stihl MS 391 is a great option.

Here are some additional thoughts on the Stihl MS 391:

The MS 391 is a good choice for farmers, ranchers, and other professionals who need a powerful chainsaw for everyday use.
The MS 391 is also a good choice for homeowners who need a chainsaw for occasional use, such as clearing brush or cutting firewood.
The MS 391 is not a good choice for beginners, as it is a powerful chainsaw that can be dangerous if not used properly.

If you are considering buying the Stihl MS 391, I recommend reading reviews from other users and talking to a qualified dealer to get their recommendations.

Stihl MS 391 Where To Buy

some places where you can buy a Stihl MS 391 and spare parts:

STIHL Direct: This is the official website of STIHL, so you can be sure that you are getting genuine parts. They offer a wide variety of chainsaws, including the MS 391, as well as spare parts.
Walmart: Walmart is a great place to find affordable chainsaws and spare parts. They often have sales and promotions, so you can get a good deal.
Amazon: Amazon is another great place to find a wide variety of chainsaws and spare parts. They often have competitive prices, and you can often find free shipping.
Best Buy: Best Buy is a good option if you are looking for a chainsaw from a major retailer. They carry a limited selection of chainsaws, but they do have some spare parts available.
Lowes: Lowes is another major retailer that carries chainsaws and spare parts. They have a wider selection than Best Buy, but their prices are not as competitive.
eBay: eBay is a good place to find used chainsaws and spare parts. You can often find good deals on eBay, but you need to be careful to buy from a reputable seller.

I hope this helps!

Stihl MS 391 Problems and Solutions

some of the most common problems with the Stihl MS 391 chainsaw and their solutions:

Starting problems: This is one of the most common problems with the MS 391. There are a few things that can cause starting problems, including:
- A dirty or fouled spark plug.
- A low fuel level.
- A clogged fuel filter.
- A bad carburetor.
- A weak battery.

To troubleshoot starting problems, you can follow these steps:

Check the spark plug. Remove the spark plug and ground it against the engine block. Crank the engine and look for a spark. If there is no spark, replace the spark plug.
Check the fuel level. Make sure that the fuel tank is full and that the fuel filter is clean.
Check the carburetor. If the spark plug is good and the fuel level is correct, the problem may be with the carburetor. You can try cleaning the carburetor or taking it to a qualified technician for repair.
Check the battery. If the spark plug, fuel level, and carburetor are all good, the problem may be with the battery. You can try charging the battery or replacing it.

Poor performance: If your MS 391 is not performing as well as it used to, there are a few things that could be causing the problem, including:
- A dirty air filter.
- A clogged muffler.
- A worn chain.
- A low oil level.

To troubleshoot poor performance, you can follow these steps:

Check the air filter. Remove the air filter and clean it with compressed air. If the air filter is torn or damaged, replace it.
Check the muffler. If the muffler is clogged, clean it or replace it.
Check the chain. If the chain is worn, replace it.
Check the oil level. Make sure that the oil level is correct.

Vibration: Vibration is a common problem with chainsaws, and it can be caused by a number of things, including:
- A loose chain.
- A bent bar.
- Worn bearings.

To troubleshoot vibration, you can follow these steps:

Check the chain. Make sure that the chain is tight and that the sprockets are not worn.
Check the bar. Make sure that the bar is not bent.
Check the bearings. If the chain and bar are good, the problem may be with the bearings. You can take the chainsaw to a qualified technician for repair.

These are just some of the most common problems with the Stihl MS 391 chainsaw. If you are having problems with your chainsaw, it is always best to consult with a qualified technician.

Stihl MS 391 Manual

Stihl MS 391 Chain Saw

Safety Information

Read the instruction manual carefully before using the chain saw.
Always wear protective gear, including safety glasses, hearing protection, and a hard hat.
Keep the chain saw clean and well-maintained.
Never use the chain saw if it is damaged.
Be aware of your surroundings and avoid contact with other people or objects.
Use the chain saw only for its intended purpose.

Before Use

Check the fuel and oil levels.
Inspect the chain and chain saw for damage.
Make sure the chain brake is working properly.
Start the chain saw according to the instructions in the manual.

Troubleshooting

If the chain saw does not start, check the fuel and oil levels.
Make sure the spark plug is properly gapped.
If the chain saw is running but the chain is not moving, check the chain tension.
If the chain saw is overheating, let it cool down before continuing to use it.

Maintenance

Clean the chain saw after each use.
Sharpen the chain regularly.
Replace the chain oil regularly.
Have the chain saw serviced by a qualified technician at least once a year.

Warranty

The Stihl MS 391 chain saw is covered by a one-year warranty.

Contact Information

For more information, please contact Stihl at:

Phone: 1-800-STIHL-USA
Email: [email protected]
Website: www.stihl.com

Additional Information

The Stihl MS 391 chain saw is a powerful tool that can be dangerous if not used properly.
It is important to read the instruction manual carefully and to follow all safety precautions.
By following the instructions in this manual, you can help to ensure your safety and the longevity of your chain saw.

Here are some additional tips for using the Stihl MS 391 chain saw safely:

Always wear eye protection when using the chain saw.
Make sure the chain brake is engaged when you are not using the saw.
Do not use the chain saw if you are tired or under the influence of alcohol or drugs.
Be aware of your surroundings and avoid contact with other people or objects.
Use the chain saw only for its intended purpose.

By following these safety tips, you can help to prevent accidents and injuries.

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