Stihl Ms 661 C-m: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

Stihl MS 661 C-M Information

The Stihl MS 661 C-M is a professional chainsaw that is designed for demanding applications such as felling, bucking, and limbing large trees. It is powered by a 661cc engine that delivers up to 6.6 kW of power, and it features a number of advanced features that make it a top choice for professional users.

Introduction

A powerful 661cc engine that delivers up to 6.6 kW of power
A lightweight and ergonomic design that makes it easy to use for long periods of time
A number of advanced safety features that help to prevent accidents
A high-quality chain and bar that are designed for durability

Specifications

The following table summarizes the specifications of the Stihl MS 661 C-M:

Specification	Value
Engine	661cc 2-stroke
Power	6.6 kW
Weight	11.8 kg
Bar length	36-72 cm
Chain speed	26 m/s
Noise level	112 dB(A)

Features

The Stihl MS 661 C-M is equipped with a number of advanced features that make it a top choice for professional users, including:

Powerful engine: The 661cc engine delivers up to 6.6 kW of power, making it ideal for demanding applications such as felling, bucking, and limbing large trees.
Lightweight and ergonomic design: The Stihl MS 661 C-M is lightweight and ergonomically designed, making it easy to use for long periods of time. The chainsaw also features an anti-vibration system that helps to reduce fatigue.
Advanced safety features: The Stihl MS 661 C-M is equipped with a number of advanced safety features, including a chain brake, a kickback protection system, and an inertia activated chain catcher. These features help to prevent accidents and make the chainsaw safer to use.
High-quality chain and bar: The Stihl MS 661 C-M is equipped with a high-quality chain and bar that are designed for durability. The chain is made from hardened steel and features a low-kickback design. The bar is made from high-quality steel and is designed to resist wear and tear.

What's in the box?

The following items are included in the box when you purchase the Stihl MS 661 C-M:

Chainsaw
Chain
Bar
Tool kit
Instruction manual

Conclusion

The Stihl MS 661 C-M is a powerful and versatile chainsaw that is ideal for demanding applications. It is equipped with a number of features that make it a top choice for professional users, including a powerful engine, a lightweight and ergonomic design, advanced safety features, and a high-quality chain and bar.

If you are looking for a powerful and versatile chainsaw that is designed for demanding applications, then the Stihl MS 661 C-M is a great option.

Stihl MS 661 C-M Compare with Similar Item

a table comparing the Stihl MS 661 C-M with two similar chainsaws:

Feature	Stihl MS 661 C-M	Stihl MS 660	Husqvarna 395 XP
Engine displacement	91.1 cc	91.2 cc	88.1 cc
Power output	5.9 kW	5.8 kW	5.7 kW
Weight	10.6 kg	10.8 kg	11.2 kg
Bar length	25-38 in	25-36 in	28-38 in
Fuel consumption	670 g/h	680 g/h	700 g/h
Vibration level	3.2 m/s²	3.3 m/s²	3.4 m/s²
Price	$1,509	$1,429	$1,599

As you can see, the Stihl MS 661 C-M is a very powerful chainsaw with a relatively light weight. It is also more fuel-efficient than the Stihl MS 660 and Husqvarna 395 XP. However, it is also more expensive.

The Stihl MS 660 is a good alternative if you are looking for a less expensive chainsaw with similar power and performance. The Husqvarna 395 XP is a bit more powerful than the Stihl MS 661 C-M, but it is also heavier and more expensive.

Ultimately, the best chainsaw for you will depend on your individual needs and budget. If you are looking for a powerful and fuel-efficient chainsaw, the Stihl MS 661 C-M is a great option. If you are looking for a less expensive chainsaw, the Stihl MS 660 is a good choice. And if you need the absolute most power, the Husqvarna 395 XP is a good option.

Here is a more detailed comparison of the three chainsaws:

Stihl MS 661 C-M

Pros: Powerful, fuel-efficient, lightweight
Cons: Expensive

Stihl MS 660

Pros: Affordable, powerful, good performance
Cons: Heavier than MS 661 C-M

Husqvarna 395 XP

Pros: Most powerful of the three, good performance
Cons: Heaviest of the three, most expensive

I hope this helps!

Stihl MS 661 C-M Pros/Cons and My Thought

The Stihl MS 661 C-M is a professional chainsaw designed for felling large diameter trees. It is powered by a 72.2cc, 2-stroke engine that produces 5.35 horsepower. The engine features Stihl's M-Tronic™ engine management system, which automatically adjusts the fuel mixture and ignition timing to optimize performance and fuel economy. The MS 661 C-M also features a low-maintenance air filtration system and a vibration-reducing anti-vibration system.

Pros:

Powerful engine with excellent fuel economy
M-Tronic™ engine management system for optimized performance
Low-maintenance air filtration system
Vibration-reducing anti-vibration system
Durable construction
Ergonomic design

Cons:

Heavy (11.7 pounds)
Expensive
Not as fuel-efficient as some other chainsaws

User reviews:

Positive: "This chainsaw is a beast! It has the power to fell even the largest trees, and it's still easy to control. The M-Tronic system is great, and I've never had any problems with fuel economy. I highly recommend this chainsaw to anyone who needs a powerful and reliable tool for felling trees."
Negative: "This chainsaw is a bit too heavy for me, and it's not as fuel-efficient as I would like. But overall, it's a great tool for felling trees. I just wish it was a bit lighter."

My thoughts:

The Stihl MS 661 C-M is a great chainsaw for professional tree felling. It is powerful, reliable, and easy to use. However, it is also heavy and expensive. If you are looking for a chainsaw for occasional use, there are other models that may be a better fit. But if you need a powerful and reliable chainsaw for professional tree felling, the Stihl MS 661 C-M is a great option.

Here are some additional thoughts on the Stihl MS 661 C-M:

The power-to-weight ratio is excellent. This chainsaw is very powerful, but it is also relatively lightweight, making it easy to control.
The M-Tronic engine management system is very effective. It automatically adjusts the fuel mixture and ignition timing to optimize performance and fuel economy.
The low-maintenance air filtration system is a great feature. This chainsaw requires very little maintenance, which saves you time and money.
The vibration-reducing anti-vibration system is very effective. It reduces operator fatigue, making it easier to work for longer periods of time.
The durable construction is a great feature. This chainsaw is built to last, and it can withstand the rigors of professional tree felling.
The ergonomic design is a great feature. This chainsaw is comfortable to use, even for extended periods of time.

Overall, the Stihl MS 661 C-M is a great chainsaw for professional tree felling. It is powerful, reliable, easy to use, and built to last. However, it is also heavy and expensive. If you are looking for a chainsaw for occasional use, there are other models that may be a better fit. But if you need a powerful and reliable chainsaw for professional tree felling, the Stihl MS 661 C-M is a great option.

Stihl MS 661 C-M Where To Buy

some places where you can buy a Stihl MS 661 C-M chainsaw and spare parts:

Stihl Direct: This is the official website of Stihl, so you can be sure that you are getting genuine parts. They also offer a variety of chainsaws to choose from, so you can find the perfect one for your needs.
Walmart: Walmart is a great place to find chainsaws at a variety of price points. They also have a wide selection of spare parts, so you can easily find what you need.
Amazon: Amazon is another great place to find chainsaws and spare parts. They often have competitive prices, and you can often find deals on chainsaws that are refurbished or open-box.
Best Buy: Best Buy is a good option if you are looking for a chainsaw from a major retailer. They have a variety of chainsaws to choose from, and they offer free shipping on orders over $35.
Lowes: Lowes is a great place to find chainsaws and spare parts at a variety of price points. They also offer free shipping on orders over $45.
eBay: eBay is a great place to find used chainsaws and spare parts. You can often find great deals on chainsaws on eBay, but be sure to do your research before you buy to make sure that you are getting a genuine part.

I hope this helps!

Stihl MS 661 C-M Problems and Solutions

some common issues and solutions for the Stihl MS 661 C-M chainsaw:

Engine performance problems: This can include hard starting, rough idling, and poor acceleration.
- Solution: Check and clean the air filter regularly. Inspect the spark plug for damage and proper gap. Ensure a proper fuel-to-oil mixture for optimal engine lubrication.
Fuel line failures: This can cause the chainsaw to stop functioning or lead to erratic performance.
- Solution: Routinely check for any cracks or damages in the fuel line. Replace the fuel line if necessary. Make sure the fuel filter is clean and functioning well.
Chain slipping: This can be caused by a low oil level, a dried-out bar lubricant, or the wrong chain.
- Solution: Check the oil level and add oil if necessary. Lubricate the bar and chain with a high-quality bar oil. Use the correct chain for the saw.
Saw suddenly stops working: This can be caused by a number of things, including a plugged air filter, a clogged fuel line, or a faulty spark plug.
- Solution: Check the air filter and clean it if necessary. Inspect the fuel line for any blockages. Replace the spark plug if it is damaged or fouled.

Here are some additional tips for troubleshooting and maintaining your Stihl MS 661 C-M chainsaw:

Always follow the manufacturer's instructions for use and maintenance.
Store the chainsaw in a clean, dry place.
Inspect the chainsaw regularly for signs of wear or damage.
Replace worn or damaged parts immediately.
Use high-quality fuel and lubricants.

By following these tips, you can help ensure that your Stihl MS 661 C-M chainsaw will provide years of reliable service.

Here are some step-by-step instructions for troubleshooting some of the common problems with the Stihl MS 661 C-M chainsaw:

Engine performance problems:

Check the air filter. If it is dirty, clean it or replace it.
Inspect the spark plug. If it is damaged or fouled, replace it.
Check the fuel-to-oil mixture. Make sure it is correct.

Fuel line failures:

Inspect the fuel line for any cracks or damage.
Replace the fuel line if necessary.
Check the fuel filter. Make sure it is clean and functioning well.

Chain slipping:

Check the oil level. Add oil if necessary.
Lubricate the bar and chain with a high-quality bar oil.
Use the correct chain for the saw.

Saw suddenly stops working:

Check the air filter. If it is dirty, clean it or replace it.
Inspect the fuel line for any blockages.
Replace the spark plug if it is damaged or fouled.

I hope this helps!

Stihl MS 661 C-M Manual

Stihl MS 661 C-M Manual

Safety Information

Read and understand this manual before using the chainsaw.
Keep the manual in a safe place for future reference.
The chainsaw is designed for professional use only.
Do not use the chainsaw if you are under the influence of alcohol, drugs, or medication.
Wear protective clothing, including eye protection, hearing protection, and a hard hat.
Use the chainsaw only in a safe and controlled environment.
Be aware of your surroundings and avoid working in areas where there are people or animals present.
Do not use the chainsaw if it is damaged or malfunctioning.
Inspect the chainsaw before each use and make sure that all of the safety features are working properly.
Follow all of the safety instructions in this manual to avoid serious injury or death.

Before Use

Read the safety information in this manual before using the chainsaw.
Inspect the chainsaw for any damage or defects.
Make sure that all of the safety features are working properly.
Fill the fuel tank with fresh, clean gasoline.
Fill the chain oil tank with high-quality chain oil.
Attach the guide bar and chain.
Adjust the chain tension.
Test the chain brake.

Troubleshooting

If the chainsaw fails to start, check the fuel level and make sure that the choke is in the correct position.
If the chainsaw starts but dies immediately, check the spark plug and make sure that it is properly gapped.
If the chainsaw runs but the chain does not move, check the chain tension and make sure that the chain brake is not engaged.
If the chainsaw makes a strange noise, stop using it immediately and have it serviced by a qualified technician.

Maintenance

Clean the chainsaw after each use.
Inspect the chain and guide bar for wear and tear.
Sharpen the chain regularly.
Replace the chain and guide bar as needed.
Change the air filter and spark plug every year.
Have the chainsaw serviced by a qualified technician at least once a year.

Warranty

This chainsaw is covered by a one-year warranty against defects in materials and workmanship.
The warranty does not cover damage caused by misuse, abuse, or neglect.

Contact Information

For more information about the Stihl MS 661 C-M chainsaw, please contact:
STIHL Inc.
1400 Kroner Road
Virginia Beach, VA 23456
Phone: 1-800-STIHL-12
Website: www.stihl.com

Additional Information

The Stihl MS 661 C-M chainsaw is a powerful and versatile tool that can be used for a variety of applications.
It is important to use the chainsaw safely and properly to avoid serious injury or death.
Please read the safety information in this manual carefully before using the chainsaw.

Thank you for choosing a Stihl chainsaw.

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