Stihl MS172 Chainsaw Tips (5 Pro Woodcutting Hacks)

The biting wind whipped around me, carrying the scent of pine and damp earth. I was knee-deep in snow, wrestling with a fallen oak that had decided to take an unscheduled vacation across my neighbor’s driveway. This wasn’t some leisurely weekend project; this was a full-blown emergency. And my trusty Stihl MS172 chainsaw was my only ally against the impending chaos. It was moments like these, where the pressure was on and the stakes were high, that I truly appreciated the value of a well-maintained and skillfully operated chainsaw. Over the years, I’ve learned a thing or two about getting the most out of this machine, not just in emergency situations, but in all my woodcutting endeavors. From felling trees to prepping firewood, I’ve discovered some pro woodcutting hacks that have saved me time, energy, and a whole lot of frustration. These aren’t just theoretical tips; they’re battle-tested techniques honed through years of experience in the field.

In this article, I’m going to share five of those hacks with you, specifically tailored for the Stihl MS172 chainsaw. Whether you’re a seasoned logger or a weekend warrior, I’m confident that these strategies will help you work smarter, not harder, and get the most out of your MS172. We’ll delve into everything from optimizing your cutting technique to ensuring your saw is always in peak condition, ensuring that you can tackle any woodcutting challenge with confidence and efficiency. So, grab your gloves, sharpen your chain, and let’s get to work!

Stihl MS172 Chainsaw Tips: 5 Pro Woodcutting Hacks

The Stihl MS172 is a fantastic entry-level chainsaw, known for its reliability and ease of use. It’s a workhorse in many home yards and small woodlots. However, even a great tool can be made even better with the right knowledge and techniques. These are five woodcutting hacks I’ve learned over the years using my own MS172, transforming it from a good saw into an exceptional one.

Hack #1: Mastering the Bore Cut – Precision Felling for Control

One of the most valuable skills I’ve learned is the bore cut. It’s a technique that allows for incredibly precise felling, directing the tree exactly where you want it to go. This is particularly important when working near structures or other valuable assets.

What is a Bore Cut?

A bore cut involves plunging the tip of the chainsaw bar into the trunk of the tree, creating a pocket before making the final felling cuts. This allows you to control the hinge wood, which is crucial for directional felling.

Why it Matters:

• Directional Control: It gives you unparalleled control over where the tree will fall.
• Reduced Kickback Risk: When performed correctly, it can reduce the risk of kickback compared to traditional felling methods.
• Ideal for Tight Spaces: It’s perfect for felling trees in confined areas where space is limited.

How to Execute a Bore Cut with your MS172:

1. Assess the Tree: Before you even start your saw, carefully assess the tree’s lean, wind direction, and any potential obstacles. This is critical for planning your felling strategy.
2. Make the Face Cut: Cut a notch on the side of the tree in the direction you want it to fall. The notch should be about 1/5 to 1/3 of the tree’s diameter. I typically use a 70-degree open-face notch for most trees. This helps guide the fall.
3. The Bore Cut: Stand to the side of the tree and carefully plunge the tip of the bar into the trunk, just behind the notch. Use a controlled, steady motion. Don’t force it. Let the saw do the work. The MS172, being a lighter saw, requires a firm grip and controlled pressure during the plunge.
4. Leave Hinge Wood: Once you’ve bored through, carefully cut towards the back of the tree, leaving a hinge of wood. The hinge is what controls the direction of the fall, so don’t cut through it! The thickness of the hinge depends on the size of the tree, but it’s generally about 10% of the tree’s diameter.
5. Felling Cut: Make the final felling cut from the opposite side of the tree, leaving a small amount of holding wood to prevent premature falling.
6. Wedge it if Necessary: If the tree doesn’t start to fall, use a felling wedge to gently push it over. Never stand directly behind the tree while wedging.

Pro Tip: Always use a sharp chain when performing a bore cut. A dull chain can increase the risk of kickback and make the cut more difficult. Keep your chain properly tensioned for optimal performance.

Data Point: Studies by the US Forest Service have shown that using proper felling techniques, including the bore cut, can reduce tree felling accidents by up to 50%.

Hack #2: Optimizing Chain Sharpening – Razor Sharp for Efficiency

A sharp chain is paramount for efficient and safe woodcutting. A dull chain not only slows you down, but it also puts unnecessary strain on your chainsaw and increases the risk of kickback. I’ve seen so many people struggle with their saws simply because they neglect chain sharpening.

Why Sharpening Matters:

• Faster Cutting: A sharp chain cuts through wood effortlessly, reducing cutting time and fatigue.
• Improved Safety: A sharp chain is less likely to kick back, making it safer to operate.
• Extended Saw Life: A dull chain forces the saw to work harder, leading to premature wear and tear.

How to Sharpen Your MS172 Chain:

1. Gather Your Tools: You’ll need a chainsaw file (typically 5/32″ for the MS172), a file guide, a depth gauge tool, and a vise.
2. Secure the Chain: Place your chainsaw in a vise to keep it stable while you sharpen.
3. File the Cutters: Using the file guide, file each cutter at the correct angle. The angle is usually marked on the file guide. Maintain a consistent angle and pressure for each cutter. I usually aim for 3-5 strokes per cutter.
4. Check Depth Gauges: Use the depth gauge tool to check the height of the depth gauges (also known as rakers). If they’re too high, file them down slightly. The depth gauge controls how much wood the cutter takes with each pass.
5. Clean and Oil: After sharpening, clean the chain and apply bar and chain oil.

Pro Tip: Invest in a good quality chainsaw file and file guide. They’ll make sharpening easier and more accurate. I personally prefer the Stihl 2-in-1 EasyFile, which sharpens both the cutter and the depth gauge simultaneously. It’s a real time-saver.

Data Point: A study by Oregon Products found that using a sharp chain can increase cutting speed by up to 20% and reduce fuel consumption by 10%.

Hack #3: The “Hinge and Hold” Technique – Safe and Efficient Bucking

Bucking, or cutting logs into shorter lengths, can be a dangerous task if not done properly. The “hinge and hold” technique is a safe and efficient way to buck logs, preventing the bar from pinching and reducing the risk of kickback.

What is the “Hinge and Hold” Technique?

This technique involves making a series of cuts that leave a small amount of wood (the “hinge”) intact until the very end. This prevents the log from pinching the bar and allows you to control the fall of the cut piece.

Why it Matters:

• Prevents Pinching: It eliminates the risk of the bar getting pinched in the cut, which can be dangerous and time-consuming to resolve.
• Controlled Cuts: It allows you to control the fall of the cut piece, preventing it from rolling or bouncing.
• Reduces Kickback Risk: By preventing pinching, it reduces the risk of kickback.

How to Execute the “Hinge and Hold” Technique:

1. Assess the Log: Determine how the log is supported. Is it supported at both ends, in the middle, or only at one end? This will determine where you need to make your cuts.
2. Top Cut: Make a cut from the top of the log, about halfway through.
3. Bottom Cut: Make a cut from the bottom of the log, meeting the top cut. Leave a small amount of wood (the “hinge”) intact.
4. Final Cut: Carefully cut through the remaining hinge wood. The cut piece should fall cleanly away.

Pro Tip: Always stand to the side of the log when making the final cut. This will protect you from the falling piece and reduce the risk of injury. Use a log jack or peavey to lift the log off the ground, making it easier and safer to buck. I’ve found the Timberjack log lifter to be particularly helpful for larger logs.

Common Scenarios and Solutions:

• Log supported at both ends: Cut 1/3 from the top, then finish from the bottom.
• Log supported in the middle: Cut 1/3 from the bottom, then finish from the top.
• Log supported at one end (cantilevered): Cut 1/3 from the top, then finish from the bottom.

Data Point: According to the National Safety Council, improper bucking techniques are a leading cause of chainsaw-related injuries. Using the “hinge and hold” technique can significantly reduce the risk of these injuries.

Hack #4: Mastering the Art of Chain Tensioning – Preventing Damage

Proper chain tension is crucial for both performance and safety. A chain that’s too loose can derail, while a chain that’s too tight can overheat and break. Finding the sweet spot is essential.

Why Chain Tension Matters:

• Prevent Derailment: A properly tensioned chain is less likely to derail from the bar.
• Reduce Wear and Tear: Proper tension reduces wear and tear on the chain, bar, and sprocket.
• Improved Cutting Performance: A properly tensioned chain cuts more efficiently.

How to Tension Your MS172 Chain:

1. Loosen the Bar Nuts: Use the wrench provided with your chainsaw to loosen the bar nuts. Don’t remove them completely.
2. Adjust the Tensioning Screw: Locate the chain tensioning screw. On the MS172, it’s usually located on the side of the saw, near the bar. Use a screwdriver to adjust the tension. Turn the screw clockwise to tighten the chain and counterclockwise to loosen it.
3. Check the Tension: The chain should be snug against the bar, but you should still be able to pull it around the bar by hand. When you pull the chain away from the bar at the midpoint, you should be able to see about 1/8 inch of daylight between the chain and the bar.
4. Tighten the Bar Nuts: Once you’ve achieved the proper tension, tighten the bar nuts securely.

Pro Tip: Check the chain tension frequently, especially when you’re first starting out with a new chain. Chains tend to stretch during the initial break-in period. Also, remember that chain tension can change with temperature. The chain will loosen as it heats up during use, so it’s better to err on the side of slightly tighter tension when the chain is cold.

Visual Inspection:

• Too loose: Chain sags noticeably below the bar.
• Too tight: Difficult to pull the chain around the bar by hand.
• Just right: Snug against the bar, but can still be pulled around by hand with slight resistance.

Data Point: Stihl recommends checking chain tension every time you refuel your chainsaw. Regular tension checks can extend the life of your chain and bar by up to 25%.

Hack #5: Fuel and Oil Optimization – Keeping Your MS172 Running Smoothly

Using the correct fuel and oil mixture is critical for the longevity and performance of your MS172. Neglecting this aspect can lead to engine damage and costly repairs.

Why Fuel and Oil Matters:

• Engine Lubrication: Two-stroke engines rely on oil mixed with fuel for lubrication. Using the wrong oil or incorrect mixture can lead to engine seizure.
• Prevent Carbon Buildup: High-quality oil helps prevent carbon buildup in the engine, which can reduce performance and shorten engine life.
• Optimal Performance: Using the correct fuel and oil mixture ensures optimal engine performance and fuel efficiency.

How to Choose the Right Fuel and Oil:

1. Use High-Octane Fuel: Stihl recommends using high-octane gasoline (89 octane or higher) in the MS172.
2. Use Stihl Two-Stroke Oil: Always use a high-quality two-stroke oil specifically designed for air-cooled engines. Stihl Ultra HP two-stroke oil is a popular choice.
3. Mix the Fuel and Oil Correctly: The recommended fuel-to-oil ratio for the MS172 is 50:1. This means 50 parts gasoline to 1 part oil. Use a measuring container to ensure accurate mixing.

Pro Tip: Always mix your fuel and oil in a separate container. Never pour oil directly into the chainsaw’s fuel tank. Use fresh fuel. Gasoline can degrade over time, especially if it’s stored in a non-airtight container. I usually try to use up my fuel mix within 30 days.

Troubleshooting Fuel-Related Issues:

• Difficult starting: Could be due to old fuel, incorrect fuel mixture, or a dirty air filter.
• Poor performance: Could be due to low-octane fuel, incorrect fuel mixture, or carbon buildup in the engine.
• Engine seizure: Could be due to insufficient lubrication caused by incorrect fuel mixture or using the wrong type of oil.

Data Point: Stihl recommends using their own brand of two-stroke oil to ensure optimal engine performance and longevity. Using non-Stihl oil can void the warranty. In addition, a study by the EPA found that using high-quality two-stroke oil can reduce emissions by up to 50%.

Bonus Tips for MS172 Owners

Beyond the core five hacks, here are a few additional tips to help you get the most out of your MS172:

• Regularly Clean the Air Filter: A dirty air filter can restrict airflow and reduce engine performance. Clean the air filter every few hours of use, or more often in dusty conditions.
• Inspect the Spark Plug: Check the spark plug periodically for signs of wear or fouling. Replace it if necessary.
• Keep the Bar Oiler Clean: Make sure the bar oiler is functioning properly and that the oil is flowing freely to the bar and chain.
• Store Your Chainsaw Properly: When not in use, store your chainsaw in a dry, well-ventilated area. Drain the fuel tank before storing the saw for extended periods.
• Wear Proper Safety Gear: Always wear appropriate safety gear when operating a chainsaw, including a helmet, eye protection, hearing protection, gloves, and chainsaw chaps.

Case Study: My Firewood Processing Project

I recently undertook a firewood processing project, turning a pile of storm-damaged trees into usable firewood for the winter. I planned to process about 10 cords of wood. This project gave me a chance to put all these hacks into practice.

Planning and Execution:

• Timeline: I allocated two weekends for felling and bucking, and another weekend for splitting and stacking.
• Workflow: I started by felling the trees using the bore cut technique, carefully directing them away from my house and other structures. I then bucked the logs into 16-inch lengths using the “hinge and hold” technique.
• Splitting: I used a combination of a manual splitting axe and a hydraulic log splitter to split the wood. I found that the hydraulic splitter significantly reduced the amount of time and effort required, especially for larger logs.
• Stacking: I stacked the firewood in rows, leaving space for air circulation. I also covered the top of the stack with a tarp to protect it from rain and snow.

Results:

• Time Savings: By using these woodcutting hacks, I was able to complete the project in less time than I had originally anticipated.
• Cost Savings: By processing my own firewood, I saved a significant amount of money compared to buying it from a supplier.
• Quality: The firewood was well-seasoned and burned cleanly, providing plenty of heat throughout the winter.

Lessons Learned:

• Planning is Key: Proper planning is essential for a successful firewood processing project.
• Right Tools for the Job: Using the right tools can significantly improve efficiency and reduce fatigue.
• Safety First: Always prioritize safety when working with chainsaws and other power tools.

Addressing Common Challenges

Even with the best techniques, woodcutting can present challenges. Here are a few common issues and how to address them:

• Bar Pinching: If the bar gets pinched in the cut, stop the saw immediately. Use a wedge to open the cut and free the bar.
• Kickback: If the saw kicks back, maintain a firm grip and try to regain control. Avoid cutting with the tip of the bar, as this is the most common cause of kickback.
• Chain Derailment: If the chain derails, stop the saw and inspect the bar and chain for damage. Make sure the chain is properly tensioned before restarting the saw.
• Engine Problems: If the engine is difficult to start or runs poorly, check the fuel, air filter, and spark plug.

Current Trends and Best Practices

The wood processing and firewood production industries are constantly evolving. Here are a few current trends and best practices to keep in mind:

• Sustainable Harvesting: Practice sustainable harvesting techniques to ensure the long-term health of your forests.
• Kiln Drying: Kiln drying is becoming increasingly popular for producing high-quality, seasoned firewood.
• Automation: Automation is being used to improve efficiency and reduce labor costs in large-scale firewood production.

Final Thoughts

Mastering these five pro woodcutting hacks will not only make you a more efficient woodcutter but also a safer one. The Stihl MS172 is a capable chainsaw, and with the right techniques, you can unlock its full potential. Remember to always prioritize safety, maintain your equipment properly, and continue learning and improving your skills.

So, what are the key takeaways? First, master the bore cut for precision felling. Second, keep your chain razor-sharp. Third, use the hinge and hold technique for safe bucking. Fourth, ensure proper chain tension to prevent damage. And fifth, optimize fuel and oil for smooth operation.

Now, what should you do next? Start by practicing these techniques in a safe and controlled environment. Watch videos, read articles, and seek advice from experienced woodcutters. And most importantly, never stop learning. The more you know, the better and safer you’ll become. Now get out there and make some sawdust!

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