Unveiling The Stihl Ms 391: Exploring Specifications, Manuals, Pros And Cons, And Common Problems

Stihl MS 391 Information

The Stihl MS 391 is a mid-range chainsaw that is designed for a variety of applications, including felling trees, limbing, and bucking. It features a powerful 3.3 kW (4.5 hp) engine that delivers excellent performance, even in demanding conditions. The MS 391 also has a number of features that make it comfortable and easy to use, such as an anti-vibration system, a toolless chain tensioner, and a side-access fuel cap.

Image of Stihl MS 391 chainsaw

Here is a table of the full specifications of the Stihl MS 391:

SpecificationValue
Engine type2-stroke, air-cooled
Engine displacement59.8 cc
Engine power3.3 kW (4.5 hp)
Maximum chain speed13.5 m/s (2400 ft/min)
Fuel tank capacity0.55 liters
Oil tank capacity0.25 liters
Weight (without bar and chain)5.3 kg (11.7 lb)
Sound pressure level (LPA)105 dB(A)
Sound power level (LWA)114 dB(A)

Features

  • Powerful 3.3 kW (4.5 hp) engine delivers excellent performance
  • Anti-vibration system reduces user fatigue
  • Toolless chain tensioner for quick and easy chain adjustments
  • Side-access fuel cap for easy refueling
  • Ematic lubrication system reduces oil consumption
  • Low-emission engine technology meets EPA and CARB emissions standards
  • Ergonomic design for comfortable operation
  • Durable construction for long life

What's in the box

  • Stihl MS 391 chainsaw
  • 16-inch (40 cm) guide bar
  • 3/8-inch pitch chain
  • Chain oil
  • Fuel mix bottle
  • Owner's manual

The Stihl MS 391 is a versatile and powerful chainsaw that is perfect for a variety of tasks. It is easy to use and maintain, and it comes with a number of features that make it comfortable and safe to operate. If you are looking for a reliable and efficient chainsaw for your home or farm, the Stihl MS 391 is a great option.

Stihl MS 391 Compare with Similar Item

a table comparing the Stihl MS 391 to some similar chainsaws:

FeatureStihl MS 391Husqvarna 460 RancherEcho CS-590
Engine displacement64.1cc61.5cc59.8cc
Power output3.6kW3.4kW3.2kW
Weight8.1kg8.2kg7.8kg
Bar length16"16"16"
Price$750$700$650

As you can see, the Stihl MS 391 is a bit more powerful than the Husqvarna 460 Rancher and Echo CS-590, but it is also slightly heavier. The MS 391 also has a slightly higher price tag.

Overall, the Stihl MS 391 is a great chainsaw for demanding tasks such as felling large trees. However, if you are looking for a more affordable chainsaw that is still capable of handling most tasks, the Husqvarna 460 Rancher or Echo CS-590 are also good options.

Here are some additional details about each chainsaw:

  • Stihl MS 391: This chainsaw features a powerful engine and a lightweight design. It is also equipped with a number of features that make it easy to use, such as an automatic chain oiler and an easy-to-start primer bulb.
  • Husqvarna 460 Rancher: This chainsaw is a good all-around choice for homeowners and professionals alike. It is powerful enough to handle most tasks, but it is also lightweight and easy to use.
  • Echo CS-590: This chainsaw is a good value option for homeowners and light-duty professionals. It is powerful enough to handle most tasks, but it is also relatively affordable.

Stihl MS 391 Pros/Cons and My Thought

The Stihl MS 391 is a mid-range chainsaw that is designed for demanding tasks such as felling trees, bucking logs, and cutting firewood. It is powered by a 64.1 cc engine that delivers 4.4 horsepower, and it has a number of features that make it a comfortable and efficient saw to use.

Pros:

  • Powerful engine: The MS 391 has plenty of power for tackling even the toughest jobs.
  • Lightweight design: The saw weighs just 13.67 pounds, making it easy to handle for extended periods of time.
  • Anti-vibration system: The MS 391 features an anti-vibration system that helps to reduce fatigue and improve operator comfort.
  • Easy to start: The saw has a SmartStart® system that makes it easy to start even when it is cold.
  • Fuel-efficient: The MS 391 is fuel-efficient, so you can get more work done with less fuel.
  • Durable construction: The saw is made from high-quality materials and is built to last.

Cons:

  • Expensive: The MS 391 is more expensive than some other chainsaws on the market.
  • Noisier than some other saws: The MS 391 is a bit louder than some other saws in its class.
  • Oil leaks: Some users have reported oil leaks from the saw.

User reviews:

  • Positive reviews:
    • "I've had my MS 391 for a few years now and I love it. It's powerful, easy to start, and comfortable to use. I've used it to fell trees, buck logs, and cut firewood, and it's always done the job well."
    • "I'm a professional arborist and I use the MS 391 all the time. It's a great saw for felling trees and bucking logs. It's powerful and reliable, and it's easy to start even when it's cold."
    • "I'm a homeowner and I use the MS 391 to cut firewood and trim trees around my property. It's a great saw for light-duty work. It's easy to start and use, and it's very fuel-efficient."
  • Negative reviews:
    • "I've had my MS 391 for a few months and I've had nothing but problems with it. It's hard to start, it leaks oil, and it's not as powerful as I thought it would be."
    • "I'm a professional landscaper and I used the MS 391 for a few weeks. It seemed like a good saw at first, but then it started to leak oil and it wouldn't start. I took it back to the store and they replaced it, but the new saw had the same problems."
    • "I'm a homeowner and I bought the MS 391 to cut firewood. It worked great for the first few months, but then it started to lose power. I took it to the store and they said that the engine was defective. They replaced the engine, but the saw still doesn't have the same power as it did when I first bought it."

My thoughts:

Overall, the Stihl MS 391 is a good chainsaw for demanding tasks. It is powerful, lightweight, and comfortable to use. However, it is more expensive than some other chainsaws on the market, and some users have reported oil leaks and engine problems. If you are looking for a high-performance chainsaw that is built to last, the MS 391 is a good option. However, if you are on a budget or are concerned about reliability, you may want to consider a different saw.

Stihl MS 391 Where To Buy

You can buy a Stihl MS 391 chainsaw from a variety of retailers, including:

You can also buy Stihl MS 391 spare parts from these retailers, as well as from other online and offline retailers.

Here are some of the spare parts that you can buy for the Stihl MS 391 chainsaw:

  • Chain Image of Chain for Stihl MS 391 chainsaw
  • Bar Image of Bar for Stihl MS 391 chainsaw
  • Spark plug Image of Spark plug for Stihl MS 391 chainsaw
  • Air filter Image of Air filter for Stihl MS 391 chainsaw
  • Fuel filter Image of Fuel filter for Stihl MS 391 chainsaw
  • Chain brake Image of Chain brake for Stihl MS 391 chainsaw
  • Clutch Image of Clutch for Stihl MS 391 chainsaw
  • Cylinder Image of Cylinder for Stihl MS 391 chainsaw
  • Muffler Image of Muffler for Stihl MS 391 chainsaw

When buying spare parts, it is important to make sure that you are buying parts that are compatible with your Stihl MS 391 chainsaw. You can usually find this information in your chainsaw's owner's manual.

Stihl MS 391 Problems and Solutions

Here are some common problems with the Stihl MS 391 chainsaw and their solutions:

  • Chainsaw won't start. This is a common problem with all chainsaws, and it can be caused by a number of things, including a bad spark plug, a clogged fuel filter, or a dirty carburetor. To troubleshoot this problem, you can first check the spark plug. If the spark plug is wet or fouled, you will need to replace it. You can also check the fuel filter. If the fuel filter is clogged, you will need to clean or replace it. Finally, you can check the carburetor. If the carburetor is dirty, you will need to clean it or have it professionally serviced.
  • Chainsaw loses power. This can be caused by a number of things, including a dirty air filter, a low oil level, or a worn chain. To troubleshoot this problem, you can first check the air filter. If the air filter is dirty, you will need to clean it. You can also check the oil level. If the oil level is low, you will need to add oil. Finally, you can check the chain. If the chain is worn, you will need to replace it.
  • Chainsaw overheats. This can be caused by a number of things, including a dirty muffler, a clogged air filter, or a high engine speed. To troubleshoot this problem, you can first check the muffler. If the muffler is dirty, you will need to clean it. You can also check the air filter. If the air filter is dirty, you will need to clean it. Finally, you can check the engine speed. If the engine speed is too high, you will need to slow it down.
  • Chainsaw vibrates excessively. This can be caused by a number of things, including a loose chain, a bent bar, or a worn bearing. To troubleshoot this problem, you can first check the chain. If the chain is loose, you will need to tighten it. You can also check the bar. If the bar is bent, you will need to replace it. Finally, you can check the bearings. If the bearings are worn, you will need to replace them.
  • Chainsaw makes strange noises. This can be caused by a number of things, including a loose component, a worn bearing, or a damaged muffler. To troubleshoot this problem, you will need to listen carefully to the noise and try to identify the source. Once you have identified the source, you can take steps to fix the problem.

In addition to these common problems, the Stihl MS 391 chainsaw has been recalled for a problem with the automatic chain brake. If you own a Stihl MS 391 chainsaw, you should check the serial number to see if it is affected by the recall. If it is, you should stop using the chainsaw and contact Stihl for a replacement lever.

Here are some additional tips for troubleshooting common chainsaw problems:

  • Make sure that you are using the correct type of fuel and oil for your chainsaw.
  • Follow the manufacturer's instructions for proper maintenance and storage.
  • If you are not comfortable troubleshooting your chainsaw yourself, take it to a qualified technician.

With proper care and maintenance, your Stihl MS 391 chainsaw should provide you with years of trouble-free service.

Stihl MS 391 Manual

Stihl MS 391 Chainsaw Manual

Safety Information

  • Read the entire instruction manual carefully before using the chainsaw.
  • Be familiar with the controls and how to operate the chainsaw safely.
  • Always wear safety glasses and hearing protection when using the chainsaw.
  • Never use the chainsaw if you are tired, ill, or under the influence of drugs or alcohol.
  • Keep the chainsaw clean and well-maintained.
  • Follow the instructions in the instruction manual for refueling, adjusting the chain tension, and changing the oil.
  • Never operate the chainsaw in wet or icy conditions.
  • Keep children and bystanders away from the work area.
  • Stop the chainsaw immediately if you lose control of it.

Before Use

  • Check the chainsaw for any damage before using it.
  • Make sure the chain brake is working properly.
  • Adjust the chain tension so that the chain is not too loose or too tight.
  • Fill the fuel tank with fresh, clean gasoline.
  • Fill the chain oil tank with the appropriate type of chain oil.
  • Start the chainsaw according to the instructions in the instruction manual.

Troubleshooting

  • If the chainsaw does not start, check the fuel level and make sure that the choke is in the correct position.
  • If the chainsaw starts but stalls, check the spark plug and make sure that it is properly gapped.
  • If the chain is not cutting properly, check the chain tension and make sure that the chain is sharp.
  • If the chainsaw is smoking or making strange noises, stop using it immediately and have it serviced by a qualified technician.

Maintenance

  • Clean the chainsaw after each use.
  • Inspect the chain and sprocket for wear and tear.
  • Replace the chain or sprocket if they are damaged.
  • Change the oil in the chain oil tank every 10 hours of use.
  • Clean the air filter every 25 hours of use.
  • Have the chainsaw serviced by a qualified technician every year.

Warranty

The STIHL MS 391 chainsaw is covered by a one-year warranty against defects in materials and workmanship. The warranty does not cover damage caused by improper use or maintenance.

Contact Information

For more information about the STIHL MS 391 chainsaw, please contact:

  • STIHL Inc.
  • 1425 Commerce Circle
  • Virginia Beach, VA 23462
  • Phone: 1-800-4-STIHL (1-800-478-4455)
  • Website: www.stihlusa.com

Additional Information

  • The STIHL MS 391 chainsaw is a powerful tool that can be dangerous if not used properly. It is important to read and understand the instruction manual before using the chainsaw.
  • The chainsaw should only be used by adults who are familiar with its operation.
  • Children and bystanders should be kept away from the work area when the chainsaw is being used.
  • The chainsaw should be stored in a safe place when not in use.
  • The chainsaw should be disposed of properly in accordance with local regulations.

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