Stihl 011 AV Chainsaw: Worth Buying Used? (5 Pro Tips Inside)

How to Determine if a Used Stihl 011 AV Chainsaw is a Good Buy: 5 Pro Tips

The Stihl 011 AV chainsaw – a name that evokes memories for many of us who’ve spent time felling trees or bucking firewood. It’s a classic, a workhorse, and, let’s be honest, often available on the used market at tempting prices. But is buying a used Stihl 011 AV worth the risk? That’s the question I aim to answer in this guide. I’ll walk you through essential checks, share my personal experiences, and provide pro tips to help you make an informed decision. Whether you’re a seasoned logger or a homeowner looking for a reliable tool, this guide will equip you with the knowledge to assess a used Stihl 011 AV effectively.

Why the Stihl 011 AV Matters

Before diving into the inspection process, let’s understand why the Stihl 011 AV remains relevant. This chainsaw, produced from the late 1970s to the early 1990s, was known for its durability and simplicity. It’s a no-frills machine, relatively easy to repair, and boasts a decent power-to-weight ratio for its time. For many, it represents a bygone era of chainsaw manufacturing, where longevity and ease of maintenance were prioritized.

Durability: These saws were built to last. The metal components are generally robust.
Simplicity: The design is straightforward, making repairs less daunting than on modern, computerized models.
Availability of Parts: While production ceased decades ago, aftermarket parts are still relatively accessible.

However, age is a factor. Any Stihl 011 AV you find will be at least 30 years old. This means wear and tear are inevitable, and a thorough inspection is crucial.

1.1 Checking the Body

Cracks and Damage: Look for cracks in the plastic housing, especially around the handle mounts and engine area. Significant cracks can compromise the structural integrity and safety of the saw.
- Personal Experience: I once bought a used saw with a hairline crack near the handle. It seemed minor, but after a few hours of use, the crack widened, making the saw uncomfortable and unsafe to operate.
Missing Parts: Are any obvious parts missing? This could include the chain brake lever, the air filter cover, or even screws. Missing parts can be a hassle to replace and might indicate neglect.
Overall Cleanliness: A dirty saw isn’t necessarily a bad sign, but excessive dirt and grime can hide potential problems. A well-maintained saw is often a sign of a conscientious owner.

1.2 Examining the Bar and Chain

The bar and chain are crucial components. Their condition directly impacts the saw’s cutting performance and safety.

Bar Condition: Check the bar for wear, especially along the rails where the chain rides. Look for burrs, uneven wear, and bending. A worn bar can cause the chain to bind and increase the risk of kickback.
- Measurement: Use a straight edge to check for bar straightness. Any deviation greater than 1/16 inch over the length of the bar is a cause for concern.
Chain Condition: Inspect the chain for sharpness, damage, and proper tension. A dull or damaged chain is not only inefficient but also dangerous.
- Pro Tip: Check the chain’s cutters for even wear. Uneven wear can indicate a problem with the bar or the chain sharpener.
Chain Tensioning Mechanism: Ensure the chain tensioner works smoothly. A seized or damaged tensioner can make it difficult to maintain proper chain tension.

1.3 Fuel and Oil Systems

The fuel and oil systems are vital for the engine’s health and the chain’s lubrication.

Fuel Tank: Check the fuel tank for leaks, cracks, and debris. A leaking fuel tank is a fire hazard.
Oil Tank: Similarly, inspect the oil tank for leaks and cracks. Insufficient chain lubrication can lead to premature wear of the bar and chain.
Fuel Lines: Examine the fuel lines for cracks and brittleness. Old fuel lines can degrade and leak, causing fuel starvation and engine problems.
- Case Study: I once spent hours trying to start a used saw, only to discover a tiny crack in the fuel line. Replacing the line solved the problem instantly.
Oil Pump Function: Ask the seller to demonstrate the oil pump function. You should see oil being expelled onto the bar and chain when the saw is running.

2. The Engine Inspection: Digging Deeper

The engine is the heart of the chainsaw. A healthy engine means a reliable saw. A failing engine means a paperweight.

2.1 Compression Test

A compression test is one of the most critical checks you can perform. It indicates the condition of the piston rings and cylinder. Low compression means the engine is worn and will likely require significant repairs.

How to Perform a Compression Test:
1. Remove the spark plug.
2. Insert a compression tester into the spark plug hole.
3. Pull the starter cord several times until the gauge reaches its maximum reading.
Acceptable Compression: A healthy Stihl 011 AV should have a compression reading of at least 120 PSI (pounds per square inch). Anything below 100 PSI indicates significant wear.
- Data Insight: I’ve tested dozens of Stihl 011 AV engines over the years. Engines with compression above 130 PSI generally run strong and reliably.
Wet Compression Test: If the compression is low, perform a “wet” compression test. Add a small amount of oil (a teaspoon) into the cylinder through the spark plug hole and repeat the test. If the compression increases significantly, it indicates worn piston rings.

2.2 Spark Plug Examination

The spark plug provides valuable clues about the engine’s condition.

Color and Condition:
- Light Tan: This indicates a healthy engine with proper air-fuel mixture.
- Black and Sooty: This suggests a rich air-fuel mixture, possibly due to a dirty air filter or carburetor issues.
- White or Gray: This indicates a lean air-fuel mixture, which can lead to overheating and engine damage.
- Oily: This suggests oil is leaking into the combustion chamber, possibly due to worn piston rings or valve seals.
Electrode Condition: Check the electrode for wear and damage. A worn electrode can weaken the spark and affect engine performance.
Spark Plug Gap: Ensure the spark plug gap is within the manufacturer’s specifications (typically around 0.020 inches for the Stihl 011 AV).

2.3 Air Filter Inspection

A clean air filter is essential for proper engine performance. A clogged air filter restricts airflow, leading to a rich air-fuel mixture and reduced power.

Condition: Check the air filter for dirt, debris, and damage. A heavily soiled air filter needs to be cleaned or replaced.
Type: The Stihl 011 AV typically uses a felt or foam air filter. Ensure the filter is the correct type for the saw.
Cleaning: Clean the air filter with warm soapy water and allow it to dry completely before reinstalling.

3. Starting and Running: The Real Test

The ultimate test is to start the saw and run it. This will reveal any underlying engine problems that might not be apparent during the visual inspection.

3.1 Starting Procedure

Cold Start: Follow the proper starting procedure for the Stihl 011 AV. This typically involves engaging the choke, pulling the starter cord until the engine “pops,” disengaging the choke, and then pulling the cord again to start the engine.
Warm Start: A warm engine should start more easily without the choke.
Difficulty Starting: Excessive difficulty starting can indicate problems with the carburetor, ignition system, or compression.

3.2 Idle Speed

Smooth Idle: The engine should idle smoothly without stalling.
Idle Speed Adjustment: If the idle speed is too high or too low, it can be adjusted using the idle speed screw on the carburetor.
Erratic Idle: An erratic idle can indicate a vacuum leak or carburetor issues.

3.3 Acceleration

Throttle Response: The engine should respond quickly and smoothly to throttle input.
Hesitation or Stumbling: Hesitation or stumbling during acceleration can indicate carburetor problems.
Full Throttle Performance: The engine should reach full throttle without bogging down or misfiring.

3.4 Smoke Test

Smoke Color: Observe the color of the exhaust smoke.
- Blue Smoke: This indicates oil burning, possibly due to worn piston rings or valve seals.
- Black Smoke: This suggests a rich air-fuel mixture.
- White Smoke: This can indicate water or coolant in the combustion chamber (less common in chainsaws but possible).
Excessive Smoke: Excessive smoke of any color is a cause for concern.

3.5 Listening for Unusual Noises

Knocking or Rattling: Listen for any unusual noises coming from the engine. Knocking or rattling can indicate serious internal damage.
Whining: A whining noise can indicate a problem with the bearings.
Squealing: A squealing noise can indicate a problem with the clutch or brake.

4. Safety Features: Ensuring a Safe Tool

Safety is paramount when operating a chainsaw. Ensure all safety features are functioning correctly.

4.1 Chain Brake

The chain brake is a critical safety feature that stops the chain instantly in case of kickback.

Functionality: Test the chain brake by engaging it and attempting to pull the starter cord. The chain should not move.
Lever Condition: Ensure the chain brake lever is in good condition and moves freely.
Brake Band: Inspect the brake band for wear and damage.

4.2 Throttle Lockout

The throttle lockout prevents accidental throttle engagement.

Functionality: The throttle should only engage when the throttle lockout is depressed.
Lockout Condition: Ensure the throttle lockout is in good condition and functions properly.

4.3 Anti-Vibration System

The Stihl 011 AV features an anti-vibration system to reduce operator fatigue.

Functionality: Check the rubber mounts that isolate the engine from the handles. These mounts should be in good condition and not cracked or worn.
Excessive Vibration: Excessive vibration can indicate worn anti-vibration mounts or other engine problems.

5. Negotiating the Price: Knowing What You’re Paying For

After thoroughly inspecting the saw, it’s time to discuss the price. Knowledge is power. Knowing the saw’s condition and potential repair costs gives you leverage.

5.1 Assessing the Saw’s Value

Condition: The saw’s condition is the primary factor determining its value. A saw in excellent condition is worth more than a saw that needs significant repairs.
Market Value: Research the market value of used Stihl 011 AV chainsaws in your area. Online marketplaces like eBay and Craigslist can provide a good indication of current prices.
Repair Costs: Factor in the cost of any necessary repairs. Replacing a piston or crankshaft can be expensive.
- Data Insight: I’ve found that the average cost to rebuild a Stihl 011 AV engine is between $150 and $300, depending on the parts needed.

5.2 Negotiating Tactics

Be Prepared to Walk Away: Don’t be afraid to walk away if the seller is unwilling to negotiate or if the saw has too many problems.
Point Out Flaws: Use the flaws you identified during the inspection to justify a lower price.
Offer a Fair Price: Be realistic in your offer. Lowballing the seller might offend them and prevent you from reaching an agreement.
Consider a Package Deal: If the seller has other tools or equipment they’re selling, consider offering a package deal to get a better price.

5.3 Alternatives to the Stihl 011 AV

If you’re hesitant about buying a used Stihl 011 AV, consider these alternatives:

Newer Stihl Models: Stihl offers a wide range of modern chainsaws with improved features and performance. The MS 170 and MS 180 are popular entry-level models.
Other Brands: Husqvarna, Echo, and Poulan Pro are other reputable chainsaw brands.
Electric Chainsaws: Electric chainsaws are a good option for light-duty tasks and are quieter and easier to maintain than gas-powered saws.

Bonus Tip: Sourcing Parts and Information

One of the biggest challenges with owning an older chainsaw is finding parts and information. Fortunately, several resources are available:

Online Forums: Chainsaw forums are a great place to ask questions, share information, and find parts.
eBay: eBay is a treasure trove of used chainsaw parts.
Local Repair Shops: Many local repair shops specialize in repairing older chainsaws.
Stihl Dealers: While Stihl no longer manufactures the 011 AV, some dealers may still have parts in stock or be able to order them.

Understanding Key Concepts

Before you start using your “new” Stihl 011 AV (or any chainsaw, for that matter), it’s important to understand a few key concepts related to wood processing and firewood preparation.

Green Wood vs. Seasoned Wood

Green Wood: This is freshly cut wood with a high moisture content. It’s heavier, harder to split, and doesn’t burn as efficiently.
Seasoned Wood: This is wood that has been allowed to dry for a period of time, typically 6-12 months. Seasoned wood is lighter, easier to split, and burns hotter and cleaner.
- Moisture Content Targets: For optimal burning, firewood should have a moisture content of 20% or less. Use a moisture meter to check the moisture content of your firewood.

Felling Techniques

Felling a tree safely requires proper technique and planning.

Planning: Assess the tree’s lean, wind direction, and surrounding obstacles.
Notch Cut: Cut a notch on the side of the tree in the direction you want it to fall. The notch should be about 1/3 of the tree’s diameter.
Back Cut: Cut the back of the tree, leaving a hinge of wood to control the fall.
Wedges: Use wedges to help guide the tree’s fall and prevent the saw from binding.

Debarking Logs

Debarking logs can speed up the drying process and reduce the risk of insect infestation.

Tools: Use a drawknife, barking spud, or debarking machine to remove the bark.
Timing: Debarking is easiest when the sap is running in the spring.

Splitting Firewood

Splitting firewood can be done manually with an axe or maul, or with a hydraulic log splitter.

Manual Splitting: Choose a splitting axe or maul that is appropriate for the size of the wood. Use a chopping block to provide a stable surface.
Hydraulic Log Splitter: A hydraulic log splitter is more efficient for splitting large quantities of firewood. Choose a splitter with sufficient tonnage for the size of the logs you’ll be splitting.
- Benefit: A hydraulic splitter significantly reduces the physical strain compared to manual splitting, allowing you to process more wood in less time.

Firewood Stacking

Proper firewood stacking is essential for efficient drying and storage.

Location: Choose a sunny and well-ventilated location for your firewood stack.
Stacking Method: Stack the firewood in rows with air gaps between the pieces. This allows for good air circulation.
Covering: Cover the top of the stack with a tarp to protect the firewood from rain and snow.

Strategic Advantages of Proper Wood Processing

Investing time and effort in proper wood processing yields significant strategic advantages:

Increased Efficiency: Seasoned firewood burns hotter and cleaner, reducing the amount of wood needed to heat your home.
Reduced Risk of Chimney Fires: Dry firewood produces less creosote, reducing the risk of chimney fires.
Cost Savings: By processing your own firewood, you can save money on heating costs.
Environmental Benefits: Burning firewood is a renewable energy source.

Practical Next Steps

Ready to start your own wood processing or firewood preparation project? Here are a few practical next steps:

Assess your needs: Determine how much firewood you need and what type of wood is available in your area.
Gather your tools: Make sure you have the necessary tools, including a chainsaw, axe, splitting maul, moisture meter, and safety gear.
Find a source of wood: Contact local tree services, logging companies, or landowners to find a source of wood.
Start processing: Follow the steps outlined in this guide to fell, debark, split, and stack your firewood.
Be patient: Allow your firewood to season for at least 6-12 months before burning it.

Final Thoughts

Buying a used Stihl 011 AV can be a rewarding experience if you know what to look for. By following these pro tips, you can assess the saw’s condition, negotiate a fair price, and ensure it’s a safe and reliable tool. Remember to prioritize safety, understand the key concepts of wood processing, and enjoy the satisfaction of working with wood. Good luck, and happy sawing!