If you are a newbie, dealing with your Husqvarna chainsaw 435 problems may take several hours just to identify the problems. Then spend another couple of hours fixing it.
So, I have listed common problems with Husqvarna chainsaws that you will face sooner or later. I do not want you to freak out. So, I have talked about respective solutions as well.
You will find what to do when it stalls, not moving or cutting, starting problems, etc. according to the saw expert. If you are a proud owner of a Husqvarna chainsaw, this article will be your ultimate troubleshooting guide.
Husqvarna Chainsaws Recurring Problems & Solutions
Here is a list of its common problems:
- Chainsaw Won’t Start.
- Stalls When Throttle.
- It won’t Cut.
- Chainsaw Won’t Stay Running.
Let’s talk about them in detail. When it comes to an innovative chainsaw, Husqvarna is the ultimately trusted brand globally. And it’s true in terms of quality and price.
Sadly, you will encounter some problems as all the mechanical equipment tend to depreciate. But luckily, irrespective of the models, I have listed all the problems here including solutions.
Here are some common Husqvarna chainsaw problems in their solutions:
Husqvarna Chainsaw Won’t Start
It can be quite daunting for the newbie. Why will my Husqvarna chainsaw not start! That’s how they got paranoid.
But if you have been working with chainsaws for some time even with other brands, then you know it’s not so uncommon.
There could be plenty of reasons why your chainsaw won’t start. It can be related to spark plug, carburetor, ignition coil, recoil starter, rewind spring, and so on.
So, let’s check some reasons and what to do when your Husqvarna chainsaw won’t start:
- The Spark Plug
The defective spark plug is the most common reason why your chainsaw won’t start like every machinery. But how do you know it’s defective?
Well, remove it and inspect it closely. Is the porcelain insulator cracked? If so, the electrode may be damaged or heavy carbon has built up at it.
You must replace the defective spark plug. Even if it’s not defective but it’s not been replaced for some years, you should replace it.
If the spark plug is not the problem or has been fixed but your chainsaw won’t start yet, check the carburetor. Sometimes, it happens due to a clogged carburetor.
The chainsaw carburetor gets clogged when you leave the oil for a long time. Because over time the oil gets thicker and sticky.
Ultimately, it clogs up the carburetor and prevents the saw from starting. Your Husqvarna chainsaw not getting fuel due to the clogged carburetor too.
Luckily, there are some carburetor cleaners that work like a charm.
Clean the carburetor but if it does not work, you may need to rebuild or completely replace the entire carburetor as well.
- Ignition Coil
As the chainsaw engine is running, the ignition coil keeps sending voltage to the spark plug. So, it gets problematic when the ignition coil is defective and your chainsaw won’t start.
Before you do anything with your defective ignition coil, you must ensure the spark plug is in good working condition.
If the spark plug is okay, then use an ignition coil tester to inspect the ignition coil. If you find it defective, replace the ignition coil.
- Recoil Starter
The defective recoil starter assembly is another reason for Husqvarna chainsaw starting problems. This is why it happens…
To turn over the chainsaw engine, the recoil starter assembly engages the crankshaft. But if it t’s defective, the engine won’t turn over and your chainsaw won’t start.
You need to remove the starter to inspect it closely. If it’s not functioning properly by not pulling and releasing the starter rope, you need to replace it.
- Recoil Starter Pulley
When the rope is not in use, the pulley retracts the rope. That’s its normal functionality.
But when the pulley is stuck or broken, it won’t retract the rope and the engine won’t start. You can take steps to unstuck it but if the pulley is broken, simply replace it.
- Rewind Spring
The only job of the rewind spring is to recoil the starter rope onto the chainsaw pulley when the rope is pulled or released.
So, what will happen when the rewind spring is broken?
Yes, the rope won’t be able to recoil onto the pulley! As a result, it will be impossible for the engine to start.
Of course, you are thinking about replacing the rewind spring individually if it’s broken but it will be better to replace the recoil start assembly completely.
Apart from all the reasons discussed above, your Husqvarna chainsaw won’t start if there is not sufficient fuel. Or, maybe you are using the wrong oil mix (water & oil ratio).
Husqvarna Chainsaw Stalls When Throttle
That’s another Husqvarna chainsaw problem that you may face from time to time. This is a common problem for the 455 Rancher chainsaw of the same brand too.
Follow the procedures and solutions mentioned above like replacing the spark plug and carburetor. If the problem still continues, follow the below-mentioned solutions additionally:
- Fuel Filter
Like the carburetor, the fuel filter may be clogged if you leave the oil in the chainsaw for too long. As the ingredients of the soil keep evaporating, there will be thicker substances left.
As the sticky oil may clog up the fuel filter, the chainsaw engine will stall. That’s another reason why your Husqvarna chainsaw not getting fuel too.
If you are sure about the old oil, drain it from the fuel tank and replace the fuel filter.
- Air Filter
Eventually, the air filter gets dirty and clogged over the normal usages of your chainsaw. There will be a shortage of air but too much fuel due to the clogged air filter.
As a result, the engine will stall or run roughly. So, check the air filter whether it is clogged or not. If clogged, just replace it.
- Spark Arrestor
What to do when your Husqvarna chainsaw starts then stalls?
Well, you need to check the carburetor, air filter, and fuel filter as discussed above. Additionally, you need to check the spark arrestor as well.
It looks like a small screen but the spark arrestor plays a vital role in preventing the engine from sparks emitting. As time passes, it gets clogged with the soot.
That’s a good reason why your chainsaw is running rough or stalling.
To unclog the spark arrestor, remove it and get a wire brush to clean it. If it’s beyond cleaning, replace it.
Husqvarna Chainsaw Not Cutting
Another weird but serious problem and it’s basically associated with the chain itself. It needs to be fixed ASAP because there is a huge safety hazard associated with it as well.
Here are some reasons why it’s not cutting and how to fix it:
- Dull Cutting Chain
Surprisingly, that’s the most common reason why your chainsaw is not cutting properly or at all. You have two options in this regard.
Try re-sharpening it or replace the chain if it’s beyond re-sharpening.
- Improperly Adjusted Chain
The right amount of tension is a must to make a proper cut with your chainsaw. If the chain direction of the chainsaw is not properly adjusted, it won’t have proper tension.
This is how it gets problematic….
You see, if the screw adjustment is too loose, the chain won’t be able to make good contact with the wood.
Alternatively, if the adjustment is too tight, the chain won’t be able to rotate at a proper speed to make a good cut.
You need to either tight or loose the screw adjustment to adjust the chainsaw chain properly.
- Chain Bar
Normally, the chain should slide easily around the chain bar. Maybe the chainsaw is not cutting at all because the chain bar is worn out or bent and is not properly lubricated.
Replace it if the chain bar is bent or worn out. Also, make sure the chain bar is properly lubricated by the chain oil.
So, fill the chain oil reservoir whenever you fill the fuel tank.
To rotate the chain, the clutch pads need to engage the clutch drum. So, another reason why it’s not cutting properly is that the clutch pads don’t exert enough pressure on the clutch drum.
You need to repair or replace the clutch assembly if the clutch pads are worn out.
- Drum Brake
What to do when the Husqvarna chainsaw chain not moving or turning? Or why it won’t turn in the first place?
Well, it’s a similar problem to when the chain is not cutting at all. So, make sure the clutch pads are okay. If that is working fine, then you need to check the drum brake.
The drum brake of the clutch band engages the clutch drum so that the chain can rotate. But when the clutch band is worn out, the motor will still run but the clutch band won’t engage the drum.
That’s the reason why the chain won’t turn or move as the stop lever is already engaged.
To keep the chain turning again, you need to make sure the stop lever is disengaged. The solution is to replace the clutch pads if they are already worn out.
Husqvarna Chainsaw Won’t Stay Running
Sometimes, it starts but won’t stay running, right? Well, like other brands, that’s another Husqvarna chainsaw’s common problem that you may face.
If that happens, you should check whether there is enough fuel in the tank first. If there is fuel, make sure the fuel is not too old.
You need to check the other basic issues like the spark plug and switch.
If the basic troubleshooting does not fix the problem, you need to dig deeper when your Husqvarna chainsaw starts then dies.
Make sure the fuel line and fuel filter are not split, damaged, or blocked. Your chainsaw won’t have enough fuel to keep running if these are blocked.
Repair or replace the filter and line. You should replace the diaphragm as well if it becomes sticky from the old gas.
Like the fuel filter, you need to replace the air filter if it’s blocked too.
There are some small ports in the chainsaw carburetor. When such ports are idle, fuel passes through the carburetor easily. If clogged, the fuel can’t pass.
So, your carburetor needs a good cleaning to remove such blockages.
You need to check the fuel cap vent as well. If the vents become clogged, the fuel becomes clogged as well. You may have to clean or replace the fuel cap too.
If your chainsaw won’t stay running after you have done all those inspections and took necessary actions, it’s time to bring it to the professional service center.
Watch this video to learn all of those Husqvarna chainsaw problems:
Husqvarna Chainsaw Simple Maintenance Tips
Husqvarna is a trusted top-handle chainsaw brand. But you will keep facing those problems every now and then.
But to face them less frequently, you should ensure its regular maintenance. Here are some effective maintenance tips for you:
- Always use fresh gasoline. It’s the fuel that keeps it running. Don’t go cheap and never let the gasoline to get old. Never mix fresh gasoline with previous gas older than 30 days.
- The chain teeth should be kept sharp always. A dull chain will cause various problems.
- Inspect the chain tension on a regular basis. Lubricate the chain as well.
- The air and fuel filter should be clean always. You need to open those parts on a weekly basis and clean them. Replace those filters every year.
- Replace any other worn-out parts.
Frequently Asked Questions (FAQs)
Both the Stihl and Husqvarna are mostly used by professional loggers due to the right balance of power to weight.
A clogged carburetor is mainly responsible for the chainsaw stalling. When you leave the old fuel in the tank for too long, it becomes thicker and sticker as some ingredients of the fuel evaporates.
The thicker and sticker fuel then clog up the carburetor.
When the starter rope refuses to pull when sprung too tightly, and the chainsaw has too much compression.
With regular maintenance, it should last 10+ years.
1. Check whether it has adequate compression.
2. Ensure adequate fuel with the right mix.
3. Remove any blockage from the fuel filter.
4. Remove blockage from the air filter or replace it completely.
All the common problems with Husqvarna chainsaws are common to other chainsaw brands as well. So, nothing to be disappointed with your Husqvarna.
Instead, identify the problem and then take corrective measures as discussed here.