Alright, buckle up, because we’re diving deep into the world of the Stihl 660 Magnum. But not just any 660, we’re talking about the kind you might find lurking in the dusty corners of a pawn shop – a diamond in the rough, potentially ready to roar back to life and conquer some serious wood. I’m going to share my personal experiences, some hard-earned lessons, and everything I’ve learned about breathing new life into these powerful beasts.

Introduction: From Pawn Shop Relic to Wood-Cutting Warrior

I’ll never forget the first time I laid eyes on my Stihl 660. It wasn’t a pristine, shiny new model fresh from the dealer. No, this one had character. It was sitting amidst a collection of forgotten tools in a local pawn shop, covered in grime, and looking like it had seen better days. Most people would have walked right past it, but something about its sheer size and the legendary “Magnum” nameplate caught my eye. It felt like I was Indiana Jones unearthing a lost artifact.

The transformation that followed wasn’t just about cleaning up a dirty chainsaw. It was about resurrecting a piece of engineering, understanding its inner workings, and ultimately, unleashing its raw power on some seriously stubborn logs. It was about taking something discarded and turning it into a reliable workhorse. This isn’t just a review; it’s a journey.

Key Takeaways: What You’ll Learn

Before we get our hands dirty, here’s what you can expect to take away from this deep dive:

The Stihl 660 Magnum. The name alone conjures images of towering redwoods falling with a thunderous crash. It’s a legend in the logging world, and for good reason. This saw isn’t for the faint of heart, but for those who need raw power and unwavering reliability, the 660 remains a top contender.

• A Legacy of Power: The 660, and its modern successor, the MS 661 C-M, are known for their impressive power-to-weight ratio. They are designed to tackle the largest trees and the most demanding logging jobs.
• Built to Last: Stihl has a reputation for building durable, long-lasting equipment, and the 660 is no exception. With proper maintenance, these saws can run for years, even under heavy use.
• A Logger’s Favorite: The 660 has earned its stripes in the hands of professional loggers around the world. Its ability to handle large-diameter timber with ease has made it a staple in the industry.

3. Why Consider a Pawn Shop Chainsaw? The Potential Upsides and Downsides

The idea of buying a chainsaw from a pawn shop might seem a bit risky. After all, you’re dealing with a used piece of equipment with an unknown history. However, there are potential benefits to consider:

• Significant Cost Savings: This is the biggest draw. You can often find used chainsaws at a fraction of the price of a new model. A Stihl 660 in good condition can easily fetch over $1,200 new. A pawn shop find might be half that price, or even less.
• A Chance to Own a Legend: As mentioned earlier, the 660 is a legendary saw. Buying used allows you to own a piece of chainsaw history without breaking the bank.
• The Satisfaction of Restoration: For mechanically inclined individuals, there’s a certain satisfaction in restoring a neglected piece of equipment. It’s a rewarding challenge that can save you money in the long run.

However, it’s crucial to be aware of the potential downsides:

• Unknown History and Potential Damage: You don’t know how the previous owner treated the saw. It could have been abused, neglected, or poorly maintained.
• Hidden Problems: Internal damage, such as worn piston rings or a scored cylinder, might not be immediately apparent.
• The Need for Repairs: Expect to invest some time and money in repairs, even if the saw appears to be in decent condition.

4. The Pawn Shop Inspection Checklist: A Deep Dive into What to Look For

• Overall Appearance: Take a good look at the saw’s overall condition. Is it excessively dirty or rusty? Are there any obvious signs of damage, such as cracks or broken parts? A little dirt is normal, but excessive grime can indicate neglect.

• Compression Test: This is arguably the most important test. Compression is a measure of how well the engine seals and how much pressure it can generate. Low compression means the engine is worn and will likely require a rebuild.

  • The Pull Test: With the saw turned off, pull the starter cord slowly. You should feel strong resistance and hear a distinct “whoosh” sound. Weak resistance or a lack of sound indicates low compression.
  • The Finger Test: Remove the spark plug and place your finger over the spark plug hole. Pull the starter cord. You should feel a strong burst of air pushing against your finger. If you feel little or no pressure, the compression is low.
  • The Professional Test: For a more accurate reading, use a compression tester. Screw the tester into the spark plug hole and pull the starter cord several times. A healthy 660 should have a compression reading of at least 130 PSI. Anything below 100 PSI indicates a serious problem.

• Fuel and Oil Systems: Inspect the fuel and oil tanks for cracks or leaks. Check the fuel lines for brittleness or damage. Make sure the fuel and oil caps seal tightly.

  • Fuel Cap Seal: A loose or damaged fuel cap can allow air to enter the fuel system, causing the engine to run poorly.
  • Oil Pump Function: With the saw running (if possible), check that the oil pump is delivering oil to the bar and chain. A lack of oil can quickly damage the bar and chain.

• Bar and Chain: Examine the bar for wear, damage, and straightness. Check the chain for sharpness, broken teeth, and proper tension.

  • Bar Wear: Look for excessive wear on the bar rails, especially near the sprocket. A worn bar can cause the chain to derail and can reduce cutting efficiency.
  • Chain Sharpness: A dull chain will make cutting difficult and can put excessive strain on the engine.
  • Chain Tension: The chain should be snug against the bar but still able to be pulled around by hand.

• Spark Plug: Remove the spark plug and inspect its condition. The color of the spark plug can tell you a lot about the engine’s health.

  • Tan or Light Brown: This indicates a healthy engine with proper fuel mixture.
  • Black and Sooty: This indicates a rich fuel mixture, which can be caused by a dirty air filter or a malfunctioning carburetor.
  • White or Gray: This indicates a lean fuel mixture, which can be caused by an air leak or a clogged fuel filter. This is dangerous and can lead to engine damage.
  • Oily: This indicates that oil is entering the combustion chamber, which can be caused by worn piston rings or valve seals.

• Air Filter: Inspect the air filter for dirt and debris. A clogged air filter can restrict airflow and cause the engine to run poorly.

• Carburetor: Examine the carburetor for leaks or damage. Check the throttle linkage to ensure it moves smoothly.
• Starter Mechanism: Pull the starter cord several times to check for smooth operation. Listen for any unusual noises.
• Ignition System: Check the spark by removing the spark plug, grounding it against the engine, and pulling the starter cord. You should see a strong, blue spark.
• Safety Features: Ensure that all safety features, such as the chain brake and throttle lock, are functioning properly.
• Ask Questions: Don’t be afraid to ask the pawn shop owner about the saw’s history. They may not know much, but it’s worth a shot.

5. Negotiating the Price: How to Get the Best Deal

Once you’ve thoroughly inspected the chainsaw and identified any potential problems, it’s time to negotiate the price. Remember, you’re buying a used piece of equipment with an unknown history, so don’t be afraid to haggle.

• Know the Market Value: Research the current market value of a used Stihl 660 in similar condition. This will give you a baseline for your negotiations.
• Point Out the Flaws: Don’t be shy about pointing out any flaws or potential problems you’ve identified during your inspection. This will give you leverage in the negotiation.
• Be Prepared to Walk Away: If the pawn shop owner isn’t willing to negotiate to a price you’re comfortable with, be prepared to walk away. There are plenty of other used chainsaws out there.
• Consider the Cost of Repairs: Factor in the cost of any necessary repairs when making your offer. If the saw needs a new piston and cylinder, for example, that could add several hundred dollars to the overall cost.
• Pay in Cash: Pawn shops often prefer cash, as it avoids credit card fees. You may be able to get a better deal by paying in cash.

6. My Pawn Shop 660 Restoration: A Hands-On Journey

Now, let’s get to the fun part: bringing my pawn shop Stihl 660 back to life. This was a labor of love, and I learned a lot along the way.

• The Initial Assessment: After purchasing the saw, I took it back to my workshop and gave it a thorough cleaning. This allowed me to get a better look at its overall condition.

  • The Good: The engine had decent compression, the bar was in relatively good shape, and the overall structure of the saw was sound.
  • The Bad: The fuel lines were cracked and brittle, the air filter was completely clogged, the carburetor was dirty, and the chain was dull.

• Disassembly and Cleaning: I disassembled the chainsaw, taking care to keep track of all the parts. I cleaned each part thoroughly with degreaser and a wire brush.
• Replacing Worn Parts: I replaced the fuel lines, air filter, spark plug, and chain. These were relatively inexpensive parts that made a big difference in the saw’s performance.
• Carburetor Rebuild: The carburetor was quite dirty, so I decided to rebuild it. I purchased a carburetor rebuild kit and followed the instructions carefully. This involved disassembling the carburetor, cleaning all the parts, and replacing the gaskets and diaphragms.
• Sharpening the Chain: A sharp chain is essential for efficient cutting. I used a chainsaw file to sharpen the chain, paying close attention to the angle and depth of each tooth.
• Reassembly and Tuning: After cleaning and replacing the necessary parts, I reassembled the chainsaw. I then tuned the carburetor to ensure that the engine was running smoothly.

7. Performance Testing: Unleashing the Beast

With the 660 restored, it was time to put it to the test. I had a pile of oak logs waiting to be processed, so I figured that would be a good place to start.

• Initial Impressions: The first thing I noticed was the sheer power of the saw. It ripped through the oak logs with ease.
• Cutting Speed: The 660 was significantly faster than my smaller chainsaws. I was able to process the logs in a fraction of the time.
• Fuel Efficiency: While the 660 is a powerful saw, it’s not the most fuel-efficient. I found that I was going through fuel at a faster rate than with my smaller saws.
• Vibration: The 660 does produce a fair amount of vibration, which can be tiring during extended use. However, the vibration is manageable with proper technique and the use of anti-vibration gloves.
• Overall Performance: Overall, I was very impressed with the performance of the restored 660. It was a powerful, reliable saw that made short work of even the largest logs.

8. Maintenance Matters: Keeping Your 660 Running Strong

To ensure that your Stihl 660 continues to perform at its best, it’s essential to follow a regular maintenance schedule. Here are some key maintenance tasks:

• Air Filter Cleaning: Clean the air filter regularly, especially when working in dusty conditions. A clogged air filter can restrict airflow and cause the engine to run poorly.
• Spark Plug Inspection: Inspect the spark plug regularly and replace it as needed. A worn spark plug can cause the engine to misfire.
• Chain Sharpening: Keep the chain sharp by filing it regularly. A dull chain will make cutting difficult and can put excessive strain on the engine.
• Bar Maintenance: Clean the bar regularly and check for wear. A worn bar can cause the chain to derail and can reduce cutting efficiency.
• Fuel and Oil Levels: Check the fuel and oil levels before each use.
• Chain Tension: Check the chain tension regularly and adjust as needed.
• Lubrication: Lubricate all moving parts regularly.
• Storage: When storing the chainsaw for an extended period, drain the fuel tank and run the engine until it stalls. This will prevent the fuel from gumming up the carburetor.

9. Safety First: A Non-Negotiable Aspect of Chainsaw Operation

Chainsaws are powerful tools that can be dangerous if not used properly. It’s crucial to follow all safety precautions to prevent accidents.

• Personal Protective Equipment (PPE): Always wear appropriate PPE, including a helmet, eye protection, hearing protection, gloves, chaps, and sturdy boots.
• Read the Manual: Read and understand the chainsaw’s owner’s manual before using it.
• Proper Technique: Use proper cutting techniques to avoid kickback and other hazards.
• Clear the Work Area: Clear the work area of obstacles and debris.
• Maintain a Safe Distance: Keep bystanders at a safe distance from the work area.
• Never Cut Above Shoulder Height: Cutting above shoulder height is dangerous and can lead to loss of control.
• Be Aware of Kickback: Kickback is a sudden, forceful movement of the chainsaw that can occur when the tip of the bar contacts a solid object. Be aware of the risk of kickback and take steps to avoid it.
• Never Use a Chainsaw When Tired or Under the Influence: Operating a chainsaw requires focus and concentration. Never use a chainsaw when you are tired, under the influence of drugs or alcohol, or taking medication that can impair your judgment.

10. The Verdict: Was the Pawn Shop Stihl 660 Magnum Worth It?

So, after all the cleaning, repairing, and testing, was buying a Stihl 660 Magnum from a pawn shop worth it? For me, the answer is a resounding yes.

• The Savings: I saved a significant amount of money compared to buying a new saw.
• The Satisfaction: I enjoyed the challenge of restoring a neglected piece of equipment.
• The Performance: The restored 660 performed exceptionally well.
• The Learning Experience: I learned a lot about chainsaw mechanics and maintenance.

However, it’s important to remember that my experience may not be typical. Buying a used chainsaw from a pawn shop is a gamble. You need to be prepared to invest some time and money in repairs.

Is it Right for You?

If you’re mechanically inclined, patient, and willing to take a risk, then buying a used Stihl 660 from a pawn shop could be a great way to save money and own a legendary saw. However, if you’re not comfortable working on engines or you need a saw that’s ready to go right out of the box, then you’re probably better off buying a new chainsaw from a reputable dealer.

11. Data-Backed Insights: Efficiency, Performance, and Fuelwood Quality

Beyond the anecdotal, let’s look at some data points that support the value and performance of a chainsaw like the Stihl 660, especially when used for wood processing and firewood preparation.

• Cutting Efficiency: Studies have shown that using a higher horsepower chainsaw like the 660 can increase cutting efficiency by up to 30% when processing large-diameter logs compared to smaller, less powerful saws. This translates to less time and effort spent on each log.
• Fuel Consumption: While the 660 is known for its power, it’s essential to consider fuel consumption. Data from Stihl indicates that the 660 consumes approximately 0.75 liters of fuel per hour under heavy load. This is higher than smaller saws, but the increased cutting speed often offsets the higher fuel consumption.
• Fuelwood Quality: The quality of fuelwood depends on several factors, including the type of wood, moisture content, and size. Using a powerful chainsaw like the 660 allows you to process larger logs into uniform sizes, which can improve drying time and combustion efficiency.
• Industry Research: A case study by the Forest Products Laboratory found that using properly maintained chainsaws, including models like the 660, can reduce wood waste by up to 15% compared to using poorly maintained or inappropriate tools. This is due to the cleaner, more precise cuts achieved with a sharp, powerful saw.

12. Expert Insights: Quotes from Professionals

To get a professional perspective, I spoke with a local logger, Jim, who has been using Stihl chainsaws for over 20 years. Here’s what he had to say about the 660:

“The 660 is a workhorse. It’s not the lightest saw out there, but it’s got the power to handle anything you throw at it. I’ve used it to fell trees over 4 feet in diameter, and it just keeps going. The key is to keep it well-maintained. Change the air filter regularly, sharpen the chain, and use good quality fuel and oil. If you do that, it’ll last you for years.”

I also consulted with a chainsaw repair technician, Sarah, who shared her insights on buying used chainsaws:

“Buying a used chainsaw can be a good way to save money, but you need to be careful. Check the compression, look for signs of damage, and don’t be afraid to ask questions. If you’re not sure what to look for, take it to a qualified technician for an inspection before you buy it.”

13. Step-by-Step Guide: Log Cutting Techniques for the Stihl 660

Now, let’s get practical. Here’s a step-by-step guide to log cutting techniques using the Stihl 660:

1. Safety First: Put on your PPE and clear the work area.
2. Assess the Log: Examine the log for knots, cracks, or other defects.
3. Plan Your Cuts: Decide on the length and size of the pieces you want to cut.
4. Stable Base: Ensure the log is stable and won’t roll or shift during cutting. Use wedges or other supports if necessary.
5. Bore Cutting (for Large Logs): For large-diameter logs, consider using a bore cut. This involves plunging the tip of the bar into the log to create a hole, then cutting outwards in both directions. This technique can help prevent pinching and make it easier to control the cut.
6. Bucking: Bucking is the process of cutting a log into shorter lengths. Use a sawhorse or other support to keep the log off the ground.
   • Overbuck: Cut from the top down, stopping before you reach the bottom.
   • Underbuck: Cut from the bottom up, meeting the overbuck cut. This prevents the log from pinching the bar.
7. Limbing: Limbing is the process of removing branches from a fallen tree. Use caution when limbing, as branches can spring back and cause injury.
   • Cut on the Opposite Side: Stand on the opposite side of the branch you are cutting.
   • Support the Branch: Support the branch with your hand or foot to prevent it from pinching the bar.
8. Stacking Firewood: Once you’ve cut the logs into firewood lengths, stack them neatly in a well-ventilated area to allow them to dry.

14. Challenges Faced by Small Workshops, Independent Loggers, or Firewood Producers Worldwide

The challenges faced by small workshops, independent loggers, or firewood producers worldwide are significant and often overlooked. Access to reliable equipment, affordable financing, and proper training can be major hurdles.

• Equipment Costs: New chainsaws, especially high-performance models like the Stihl 660, can be a significant investment for small businesses. This is why buying used equipment is often a necessity.
• Maintenance and Repair: Maintaining chainsaws requires specialized knowledge and tools. Small businesses may struggle to afford professional repair services and may need to rely on their own skills and resources.
• Safety Training: Proper safety training is essential for preventing accidents and injuries. However, access to affordable safety training programs can be limited, especially in developing countries.
• Market Access: Small firewood producers may struggle to compete with larger companies that have established distribution networks. Finding reliable markets and selling firewood at a fair price can be a challenge.
• Environmental Regulations: Environmental regulations related to logging and firewood production are becoming increasingly strict. Small businesses may struggle to comply with these regulations, which can add to their costs and administrative burden.

15. Actionable Conclusions and Next Steps

Okay, you’ve reached the end of this epic Stihl 660 Magnum journey. Now what? Here are some actionable conclusions and next steps you can take:

• Assess Your Needs: Determine whether a Stihl 660 is the right chainsaw for your needs. If you’re primarily cutting small trees and firewood, a smaller, lighter saw might be a better choice.
• Do Your Research: If you’re considering buying a used chainsaw, do your research and learn what to look for. Use the inspection checklist I provided earlier in this article.
• Get Training: If you’re new to chainsaw operation, get proper training from a qualified instructor.
• Start Small: If you decide to buy a used chainsaw, start with small projects and gradually work your way up to larger tasks.
• Maintain Your Saw: Follow a regular maintenance schedule to keep your chainsaw running smoothly and safely.
• Share Your Experience: Share your experiences with other chainsaw enthusiasts. You can learn from each other and help each other overcome challenges.

Final Thoughts

The Stihl 660 Magnum is a legendary chainsaw that has earned its place in the hearts of loggers and woodworkers around the world. Buying a used 660 from a pawn shop can be a rewarding experience, but it’s important to be prepared for the challenges. With careful inspection, proper maintenance, and a commitment to safety, you can breathe new life into a neglected 660 and unleash its raw power on even the toughest logs. Now, get out there and make some sawdust!

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