Husqvarna 120 Mark Ii Problems & Solution



Husqvarna 120 Mark Ii Problems

Common problems with the Husqvarna 120 Mark II include difficulty starting, chain tension issues, and engine stalling. Users also report inadequate power and fuel system complications.

The Husqvarna 120 Mark II, a popular entry-level chainsaw, targets occasional users and homeowners seeking reliability and ease of use. Despite its reputation for a well-designed user experience, this model isn’t immune to challenges that garden equipment faces. Many users encounter starting troubles which often trace back to a flooded engine or a faulty ignition system.

Keeping the chain properly tensioned can also be a pesky issue; an overly tight or loose chain affects cutting efficiency and can damage the saw. Further, stalling engines disrupt workflow and are frequently attributed to clogged air filters or contaminated fuel lines. Finally, some operators may experience less cutting power than anticipated, which usually points to issues with carburetor settings or a dull chain. Addressing these problems early on can extend the life of the chainsaw and improve its overall performance, keeping the Husqvarna 120 Mark II a favorite for its intended light-duty tasks.

About Husqvarna 120 Mark Ii

The Husqvarna 120 Mark II chainsaw sparks interest among both professionals and enthusiasts. This chainsaw is known for its adeptness in handling various cutting jobs. However, users may experience some issues, which we’ll explore in this guide.

Overview of the Husqvarna 120 Mark II Features

  • Robust Engine: Built with a powerful X-Torq engine, it saves fuel and reduces emissions.
  • LowVib System: Designed to minimize vibrations for a smoother operation.
  • Air Injection: A centrifugal air cleaning system that keeps large dust and debris particles away from the air filter.
  • Combined Choke/Stop Control: Simplifies starting and reduces the risk of engine flooding.

Popularity and Applications in Woodworking

The Husqvarna 120 Mark II’s popularity comes from its versatility and ease of use. Let’s look at its common applications:

  1. Felling small trees with precision
  2. Pruning branches to maintain tree health
  3. Preparing firewood for cozy winter nights
  4. Sculpting wood for art or construction

Common Mechanical Issues

Husqvarna chainsaws, renowned for their robustness, occasionally encounter mechanical hiccups. The Husqvarna 120 Mark II is no different. A few mechanical issues commonly arise. Owners should understand them. Let’s dive into the typical problems and their practical solutions.

Faulty Chain Tensioning and Solutions

Loose or overly tight chains hamper the Husqvarna 120 Mark II’s performance.

  • Signs to look for: sagging chain, chain slippage, or difficulty during cutting tasks.

Quick fixes include:

  1. Ensuring the saw is off and cooled down.
  2. Adjusting the tensioning screw with proper tools.
  3. Checking tension regularly to maintain optimal function.

Carburetor Malfunction Symptoms and Repairs

The carburetor’s role is crucial for engine operation. A faulty carburetor interrupts this process.

  • Watch out for: erratic idling, trouble accelerating, or a rough-running engine.

To correct carburetor issues:

  1. Clean the carburetor meticulously.
  2. Adjust the mixture screws for better fuel and air ratio.
  3. Consider professional help if unresolved.

Troubles With Starting the Engine

Starting failures can be frustrating and hinder your workflow.

Common indicators include: an engine that won’t ignite or stalls shortly after starting.

Steps to troubleshoot:

  1. Check spark plugs for damage or dirt accumulation.
  2. Inspect the fuel mixture for correct proportions.
  3. Assess the air filter for clogs requiring cleaning or replacement.

Operational Problems

Users of the Husqvarna 120 Mark II sometimes face challenges while operating the chainsaw. Recognizing these challenges helps in maintaining a smoothly running machine. Below we dive into common operational problems and their potential impact on your work.

Loss Of Power During Operation

Unexpected power loss can happen at any time. It may turn a simple task into a struggle. The Husqvarna 120 Mark II is no exception. The power drop mid-operation could be due to several reasons.

  • Air filter blockage reduces air intake.
  • Spark plug issues cause ignition problems.
  • Fuel system clogs limit fuel flow.

Detecting the culprit early ensures quick fixes and fewer work halts.

Chain Movement Irregularities

Consistent chain movement is crucial for precise cuts. Iregularities can occur without warning.

  • Worn out guide bars affect the chain’s path.
  • Improper chain tension leads to slippage or tightness.
  • Lack of lubrication causes friction and wear.

Maintain regular checks to avoid unexpected downtime.

Overheating Issues

The chainsaw’s endurance is tested when it overheats. Excessive heat damages internal components. Common signs include:

  1. Sudden performance drops.
  2. Smoke coming from the engine area.
  3. Pungent burning smell.

Address these signs swiftly to prevent long-term damage.

Maintenance Challenges

Keeping your Husqvarna 120 Mark II chainsaw in top condition means regular upkeep. But sometimes, maintenance can be a hassle. Here’s a look at some common problems and how to handle them.

Lubrication System Failures

Proper lubrication keeps the saw running smoothly. Yet, the lubrication system can fail, causing friction and wear. Signs include:

  • Excessive heat from the chain.
  • Sawdust clumping near the chain.

Fix these issues by:

  1. Checking the oil level and refilling as needed.
  2. Cleaning the oil port and filter to remove clogs.

Air Filter Maintenance and Replacement

A dirty air filter restricts airflow and reduces performance. Look for signs like:

  • Loss of power
  • Difficulty starting

Clean or replace your air filter by:

  1. Removing the access cover.
  2. Taking out the filter and knocking off debris.
  3. If too dirty, replace with a new one.

Spark Plug Issues and Maintenance Tips

A faulty spark plug can stop your chainsaw cold. Common signs include:

  • misfiring engine .
  • Issues with starting.

Keep your spark plug in check by:

  1. Inspecting the plug for deposits and wear.
  2. Cleaning the electrode with a wire brush.
  3. Replacing the plug if damaged or worn.

User Experience and Reliability Concerns

The Husqvarna 120 Mark II is popular among homeowners for routine garden tasks. User experiences and reliability of this chainsaw are crucial for understanding its performance. Let’s delve into what users are saying and how the saw’s longevity compares to similar models.

Feedback From Users On Performance

Challenges in performance have been noted by several users of the Husqvarna 120 Mark II. Issues such as difficulty in starting and inconsistent idling appear in user feedback. Users often compare their experiences with expectations set by the brand’s reputation.

  • Starting difficulties: A common concern among users.
  • Idling issues: Reported by some, affecting workflow.
  • Power: Generally adequate for basic tasks but can struggle with tougher wood.

Comparing Longevity With Other Models

When it comes to longevity, the Husqvarna 120 Mark II faces stiff competition. It is designed for light-duty tasks and may not live up to the wear-and-tear that professional-grade models endure. A table comparison helps highlight the differences:

ModelExpected LifespanSuitable for Heavy Use?
Husqvarna 120 Mark IILow to moderateNo
Other Husqvarna Professional ModelsHighYes
Competitor Models at Similar PriceModerateVaries

Each model has its own strengths and weaknesses. Users should compare their needs with the model’s capabilities before purchasing.

Husqvarna 120 Mark

Troubleshooting and Support

Husqvarna 120 Mark II problems can occasionally pop up, even with the reliability that comes from a brand known for quality and durability. Understanding how to approach these problems is crucial for the longevity of your chainsaw. The following sections offer invaluable insights into troubleshooting and getting support for your Husqvarna 120 Mark II.

Guidelines For Basic Troubleshooting

Before looking for external help, try some basic troubleshooting steps:

  • Check the fuel: Ensure you’re using the correct mix of fuel and oil.
  • Inspect the air filter: Clean the filter if it’s dirty to improve performance.
  • Examine the spark plug: Replace the spark plug if it’s worn out or damaged.
  • Review the manual: Your user manual offers tailored advice for common issues.

Brief inspections and routine maintenance can often save a trip to the service center.

Warranty Claims and Repair Services

If basic troubleshooting doesn’t resolve the issue, consider a warranty claim:

  1. Verify the warranty period: Check your purchase date against the warranty terms.
  2. Gather required evidence: Compile your purchase receipt and warranty card.
  3. Contact an authorized service center: They provide expert assessments and repairs.

Authorized centers ensure your chainsaw gets the professional attention it needs.

Accessing Technical Support For Difficult Issues

When an issue is beyond basic fixes, it’s time to reach out to the pros:

  • Check the support section on Husqvarna’s website for FAQs and contact options.
  • Dial customer service: Engage directly with a technician for in-depth support.
  • Use live chat functions: For real-time, step-by-step guidance from experts.

Accessing support from Husqvarna professionals can quickly get your 120 Mark II up and running smoothly again.

See also: How Often Should You Sharpen Chainsaw

FAQs in Husqvarna 120 Mark Ii Problems

Why Does My Chainsaw Run For 5 Minutes Then Dies?

Your chainsaw might stall after 5 minutes due to a clogged air filter, faulty spark plug, or dirty carburetor. Ensure proper fuel mix and check for adequate venting.

What Is the Fuel Mix for Husqvarna 120 Mark 2?

The Husqvarna 120 Mark II chainsaw requires a fuel mix ratio of 50:1, which means 50 parts gasoline to 1 part two-stroke oil.

What Does the Mark II Mean With Husqvarna?

The Mark II designation in Husqvarna products signifies an updated version with enhanced features and performance improvements over previous models.

What Are the L and H Adjustments on a Chainsaw?

The L (Low) and H (High) adjustments on a chainsaw control the fuel mixture during low and high-speed operations, ensuring optimal engine performance.


Navigating the world of chainsaws can often bring about a set of challenges, and the Husqvarna 120 Mark II is no exception. Despite its prowess, users may experience issues ranging from starting troubles to chain tensioning. Arm yourself with troubleshooting knowledge, and your saw’s longevity can be significantly extended.

For any persistent problems, seeking professional support ensures your Husqvarna remains a reliable tool for years to come. Your chainsaw exploration isn’t over yet. Chainsaw Hive’s Knowledge category is where your questions find answers.

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