9 Common Problems With Husqvarna Chainsaws + Troubleshooting

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Without the world’s most innovative chainsaw brand, Husqvarna, the forestry industry won’t be complete. But like most powerful machines, it develops issues over time, and these instances are inevitable considering how much work this machine is. 

Let me share some of the common problems I’ve encountered with Husqvarna chainsaws and the solutions I’ve found to be effective.

Are Husqvarna Chainsaws Any Good?

The Husqvarna brand is known as a manufacturer of the best chainsaws ever released, brought about by its impressive performance in the forestry industry. 

person operating a Husqvarna chainsaw

Aside from the reputation of the Husqvarna, what sets them apart from other chainsaw brands is their quality and rich history in the chainsaw market.

9 Common Husqvarna Chainsaw Issues + How to Troubleshoot Them

Problem #1: Husqvarna Chainsaw Won't Start

Defective Ignition System

One of the reasons your Husqvarna chainsaw won’t start is a faulty ignition system. Make sure thatthere are no spark plug issues and it is functional for ignition. 

If the spark plugs are not working as expected, check for the ignition coil, and assess the defect for a replacement. Clean the corrosion with a steel brush to ignite sparks.

Ignition Coil

When inspecting a defective ignition coil, I use an ignition coil tester. If it turns out to be faulty, I rely on my reserve.

Clogged Carburetor

To drain a clogged carburetor, yank the pull start repeatedly until all excess fuel comes out. Leaving the oil for a long time on your chainsaw is the common culprit of clogged drains. 

For this task, you may need to use the right Husqvarna carburetor adjustment tool for disassembling and assembling the parts. 

Husqvarna saw clogged carburetor

Contaminated Oil Ports

Oil leaks are common on Husqvarna chainsaws, brought about by their two oil inlets, so make sure to learn how to store a chainsaw without the oil leaking. After using it, clean it with a small and sharp wire to prevent oil contamination. 

Cold Weather

Weather conditions can impact chainsaw engines, causing them to become inactive, especially in cold temperatures. Whenever I encounter this, I resort to using the choke function to be particularly effective when starting up the chainsaw the next time.

Recoil Starter

Your engine will turn defective without the recoil starter assembly engaging the crankshaft. Inspect closely by pulling and releasing the start rope until it starts the internal combustion process. If it doesn’t, replace it. 

Damaged Rewind Spring

If the problem you’re encountering is due to damaged rewind springs, I suggest not opting for repair because it won’t work either. 

chainsaw rewind spring

The rope will not recoil onto the chainsaw pulley if there are damaged springs. Always replace the recoil starter assembly because it’s cheaper than buying an entire kit. 

Problem #2: Husqvarna Chainsaw Stalls

Dirty Fuel Filter

Damage to the fuel filter is often brought about by bad oil that has settled too long on the tank, which is one of the reasons why a Husqvarna chainsaw stalls. 

The thick and sticky fuel can block the fuel line of the chainsaw engine, causing it to stall. Replace old oil with a good quality fuel mix to fix a faulty fuel filter.

adjusting tension on a Husqvarna chainsaw

Clogged Air Filter

Debris and dirt can get in the way, causing dirty air filters. When this happens, gas fumes are sucked instead of air. This will cause your chainsaw to stall, or should it work. 

The engine will be too noisy, and running with a clogged filter will result in more carbon deposits. Regularly replace your air filter as part of chainsaw maintenance.

Defective Spark Arrestor

A defective or clogged spark arrestor can indeed release hot sparks, which pose a fire risk. Though it’s just a small screen, the spark arrestor plays a critical role in preventing these dangerous sparks from the engine. 

If it gets clogged, the exhaust doesn’t function properly, leading to the engine stalling. Always something to keep an eye on.

Problem #3: Husqvarna Chainsaw Not Cutting

Untuned Chain

Chainsaws require stretch and tension in strings, which means the wrong chain direction will not cause enough tension, preventing you from cutting.

person operating a Husqvarna chainsaw

Tuning your screw adjustment is also essential as loose screws can cause chain displacement, leading to less or no vibration on your saw when you run it.

Chattering Chain

It’s common for chainsaw teeth to dull out after several uses because the gutting edges face pressure when sharpening. 

Compared to the other parts, I also noticed that the chain is the component that gets worked out the most, causing chattering. The curvy cuts from the wood chips cause the chain to be sharpened, requiring a separate round filer depending on the model. 

Worn Out Chain Bar

Worn-out chain bars can cause the chainsaw to stop cutting. More often than not, the root cause is improper lubrication or a bent bar. I always make it a point to lubricate with chain oil and to replace any bent bars without delay. It’s a simple practice that can save a lot of hassle in the long run.

Husqvarna worn out chainsaw bar

Defective Clutch

The clutch pads get worn out when there’s not enough pressure on the clutch drum. A faulty clutch is bad for your chainsaw. When this happens, you will have to replace the whole clutch assembly immediately. 

Problem #4: Husqvarna Chainsaw Won't Stay Running

One of the common Husqvarna chainsaw problems is that the saw won’t stay running. The possible perpetrators of this problem are old fuel, dirty carburetors, and clogged vents. 

I always make sure to check these factors to save myself the stress and expense of seeking professional repair services.

Problem #5: Husqvarna Chainsaw Keeps Turning

Defective return springs and malfunctioning clutch will prompt chainsaws to continue turning even after it was shut off. There’s no other way to fix sticky clutch pads than by replacing them. 

Problem #6: Husqvarna Chainsaw Has Stiff Guide Bar Grooves

To fix a stiff bar groove, detach the drive case cover, and disassemble the chain and the bar. Clean the grooves with a small screwdriver and a file to flatten the nicks. 

Husqvarna stiff bar grooves

Problem #7: Flooded Engine

An overdone fuel pump will prompt flooded engines on your saw. Drain all the fuel in the saw’s fuel tank and turn the throttle while pulling the cord to fix issues like this quickly. After this procedure, you can deactivate the choke and clean the left-out residue. 

Problem #8: Husqvarna Chainsaw Vibrates

Too much vibration on your chainsaw often occurs due to loosening chains. To fix this common issue, use the built-in tension adjusters to tighten the teeth. 

Maintenance and Care Tips

Following simple maintenance tips is a precaution you should consider to keep your machine functional and in good operation. 

checking Husqvarna chainsaw

Tip #1: Regular Cleaning After Each Use

I can’t stress enough the importance of thoroughly cleaning a chainsaw, not just the parts that catch the eye. I always make sure to keep my chainsaw free from debris both before and after use. It’s a proactive step to prevent issues, especially around the sprocket nose, inlet hole, or groove bar.

Tip #2: Rotate the Guide Bar After Chain Replacement

Rotate the guide bars manually and remove the burrs after sharpening the chains. 

Tip #3: Inspect Chain Tension and Lubrication

When purchasing your chainsaws, ensure it gets proper lubrication to avoid rusting your chain early. Always conduct regular inspections of chain tension to avoid stiffness during operations. 

Tip #4: Maintain the Sharpness of the Chain

Chainsaw chains should always be kept sharp to avoid miserable working conditions when working on your machine. Use the proper file size and file at the correct angle to keep sharpness. 

sharpening Husqvarna chainsaw

Tip #5: Check the Cleanliness of the Air Filters

One of the common problems with Husqvarna chainsaws are clogged air filters. Keep air filters well maintained through regular cleaning or periodic replacement. 

When the saw is left at idle speed, it results in worse carbon collection. Utilize compressed air to clean the filter easily.

Tip #6: Avoid Racing the Engine

Never overwork the engines when cutting. It may be one of the most powerful tools, but it’s required that you use the appropriate cutting techniques to avoid racing the engine. 

Tip #7: Always Use Fresh Gasoline

Fresh gasoline is king when maintaining a Husqvarna unit. Unlubricated teeth often cause a dull chain. 

mixing fuel for husqvarna chainsaw

Weather factors affect the oil mixture causing it to break down easily when left sitting on your saw. This is why it’s recommended never to mix fresh gasoline with old fuel to avoid Husqvarna chainsaw starting problems. 

Important Husqvarna Chainsaw Components

How to Start a Husqvarna Chainsaw Properly

There are proper ways to operate a chainsaw, and knowing how is essential in owning one. 

1. Lay the chainsaw on a flat surface before removing the bar cover.

2. Activate the chainsaw chain brake to ensure safety. Doing this will prevent accidents brought about by mishandled saws. 

starting a Husqvarna chainsaw

3. Utilize the Husqvarna smart start button to start them properly.

4. Push the primer bulb to enable a clearer visual of the fuel level.

5. With your dominant hand, pull the ripcord to the right. 

6. Use your right foot to pull the rear handle and your left hand to keep the saw steady.

7. Tug the ripcord repeatedly until the chainsaw runs fully, then hold down the throttle midway. 

How to Choose the Right Husqvarna Chainsaw For You


For those just starting out, I wouldn’t recommend a large industrial type, as there’s a lot to learn about chainsaws. I usually suggest the Husqvarna 435—it’s the most lightweight and compact option, ideal for beginners.

husqvarna 435


A machine with longer chain bars and higher horsepower is more suitable for someone working at a professional scale. Seasoned professionals have a larger scope of projects and bigger woods to work on, making this an apt choice. 

In working conditions requiring sawing of massive trees and ranches, a Husqvarna 440 is the perfect model.

Low Maintenance Use

Doing manual chores when maintaining a machine is not everyone’s cup of tea. No matter how much information the chainsaw user manual has, some don’t have the time and luxury to do such in a regular interval. 

This is why copping a piece of low-maintenance equipment is the more favorable choice, and a Husqvarna 240 is the machine for such.

person holding a Husqvarna chainsaw

Electric vs. Gas Model

Residential spaces require more quiet and eco-friendly machines, making an electric chainsaw more suitable. However, expect it won’t be proficient for heavy-duty tasks and is best for occasional users.

A gas-powered chainsaw model works best for demanding tasks, but it produces too much noise and is not suggested for close neighborhood areas. 

The Best Husqvarna Chainsaw Today

Out of all the models we tested, the top choice and best Husqvarna chainsaw is the Husqvarna 460 24-Inch Rancher Chainsaw. 

Husqvarna 460 Rancher

The chainsaw engine of this model is powered by a 60cc two-stroke engine and a great cutting blade that can withstand any log material without getting obstructed with wood dust or debris. 

The 460 24-Inch Rancher ChainSaw is one of the most sought-after power tools by professionals, given its mammoth power cutting blades, perforating logs twice its radius.  


Why is my Husqvarna chainsaw not starting?

Your Husqvarna chainsaw is not starting for a few reasons, and it’s best to track these three areas – fuel, spark, and air. Clogged carburetors and old fuel are the common culprits. Another would be a damaged spark plug and faulty ignitions. 

What are the H and L on a Husqvarna chainsaw?

The H and L letters on a Husqvarna chainsaw are screws that should be well-adjusted for the machine to function properly. The L stands for low-speed and regulates fuel mixture at low speed. Meanwhile, the H stands for High speed and regulates oil during high-speed operations. 

How do you start a flooded Husqvarna chainsaw?

First, engage the chain brake. When I do this I keep the saw steady on the ground by placing one knee over the powerhead and ensure the choke is off.

Then, I activate the chainsaw’s fast idle by engaging the trigger assembly. Holding down the throttle completely, I pull the starter rope multiple times with my free hand.

How do you clean a Husqvarna chainsaw?

Detach the spark plug, and use a file to clean this part of your Husqvarna chainsaw. Remove the spark plug cover, and pull the spark arrestor screen to inspect if the area needs to be cleaned. If so, use a wire brush or opt for total replacement. 

I always emphasize using fresh, clean gas to prevent any start-up issues. When cleaning the oil tank, drain it first and then rinse it out with gasoline. And to tidy up the cooling fins and the exterior, remove the necessary bolts and nuts.

How do you put a chain on a Husqvarna chainsaw?

Remove the old chain by freeing it from tension. Loosen the screw and thread the new chain onto the teeth of the saw. Align the chain to the guide bar, and change the side plate of the equipment. Twist the bolts until the desired tension is met. 

How do you measure a Husqvarna chainsaw bar?

Start from the bar tip to the cutter on the saw’s body. To get a whole number measurement, round it up to the closest even number. 


Even though I’ve faced some common issues with Husqvarna chainsaws, it’s undeniable that the brand continues to make the best power tools out there, consistently delivering top-notch results in no time.

In this article, I’ve shared several easy maintenance tips to ensure you get the most out of this premium tool without causing any damage. From cleaning practices to troubleshooting common issues, these tips will help you understand your chainsaw better and extend its lifespan for years to come.

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Robert Johnson is a passionate furniture maker & carpenter, sought after for his knowledge on the craft.
You’ve probably seen his down-to-earth wisdom in USA Today, Bobvila, Family Handyman, and The Spruce, where he has shared commentary and guidance on various woodworking topics.

Robert is the brain behind Sawinery, where he aims to share tips, tricks, and a passion for all things carpentry.

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