8 Solutions for Husqvarna Lawn Tractor Won’t Start Issue

You are ready to mow your lawn, but as soon as you try to start your Husqvarna lawn tractor it refuses to start. Nothing can be more annoying than this. Husqvarna tractors are very reliable, so why does the Husqvarna Lawn tractor won’t start?

Clogged air filters, damaged spark plugs, and dirty carburetors are a few of the reasons why the Husqvarna Lawn tractor won’t start. There are also other reasons like a dead battery, a damaged starter solenoid, and more. 

Hence, if your Husqvarna lawn tractor isn’t working properly and causing issues while starting this guide is for you. Down below we will discuss all the problems and their respective solutions.

Why Won’t Husqvarna Lawn Tractor Start?

Husqvarna Lawn Tractor Won't Start Issue

Husqvarna lawn tractors are quite reliable and efficient. But, as they age they start to show some problems eventually leading to issues like not starting. There are a few culprits that can cause this issue so read below to know more.

  • Clogged air filter
  • Damaged spark plugs
  • Dirty carburetor 
  • Dead battery
  • Faulty fuel pump
  • Damaged starter solenoid
  • Broken recoil spring
  • Problematic ignition switch

8 Solutions For Husqvarna Lawn Tractor Won’t Start Issue

We have seen the problems so far, but how can you fix these issues? Well fixing all these problems is relatively easy and you will just need to understand the root of the cause. So, in this section, we will discuss these fixes in full detail.

1. Clogged air filter: Clean or Replace the air filter

Clean or Replace the air filter

Since the Husqvarna tractor needs air to start and operate when the air filter is clogged with grass cuttings, dust, and other waste, the airflow to the carburetor is restricted. It, therefore, struggles to start. To examine, open the air filter paper and check whether it can be cleaned or not.

Use a clean, dry cloth to remove any leftover debris from the casing of the air filter before cleaning it. You may use anything again if it looks decent. If it cannot be fixed, you will have to change the air filter.

The Husqvarna air filter comes in various prices ranging from as low as $8 to as high as $20. Choose the one that goes the best with your tractor model. 

2. Damaged Spark Plugs: Replace them

Damaged Spark Plugs

One of the main causes of your Husqvarna mower not starting is damaged spark plugs. Look for damage or deterioration in the spark plug. Spark plugs are harmed if the ceramic insulator is broken, an electrode is broken or burnt away, or there is a buildup of dirt inside.

You can clean spark plugs if the degree of damage is lower, but the process is very complicated. So, the best solution is to replace them as they are pretty cheap. 

Champion RC12YC & NGK BCPR5ES Spark Plugs are most commonly used for Husqvarna tractors. These spark plugs will cost you between $20-$30.

3. Dirty Carburetor: Rebuild, Replace, or clean

Dirty Carburetor

The carburetor allows the engine’s demands to determine the fuel and air mixture. Sometimes it can get clogged and this can happen due to many reasons like fuel left in the tractor for a long time along with grass clippings and dirt. 

Fixing a carburetor requires you to have a bit of knowledge about the internals of an engine. Open the whole carburetor and clean it using a carb cleaner. Once cleaned, reassemble it and try to start the engine again. If it doesn’t work then you will need to rebuild or replace it.

Rebuilding and replacing the carburetor both are expensive procedures. Rebuilding carburetors for Husqvarna can cost between $200-$600 and replacement can cost over $1000. 

4. Dead battery: Clean the Battery Terminals or Replace the Battery

Clean the Battery Terminals or Replace the Battery

A dead battery can also cause your lawn tractor starting issues. When you leave your Husqvarna tractor for very long without using it, the battery can become discharged. Also, there can be corrosion in the battery terminals.

First, clean the battery terminals using a soft brush and some baking soda with water to remove any corrosion. Now check the battery using a voltmeter and the reading should be around 12.7 V. if it shows lower or no reading then try charging the battery. If your tractor still doesn’t start; it’s time to replace the battery.

For Husqvarna, the chrome 12V 35Ah batteries are among the top choices. These batteries perform really well and should cost you between $80-$100. 

5. Faulty Fuel Pump: Clean or Replace the Pump

Faulty Fuel Pump

A fuel pump transports gasoline from the tank to the carburetor. After mixing, the fuel and air enter the cylinder head. The pump develops surface cracks and leaks fuel when it can no longer maintain pressure eventually causing issues for the engine while starting.

You always do not have to replace the pump, sometimes a simple cleaning process is enough. Open the pump and look for any blockages, if you find any then clean them. If your engine still doesn’t start then you will need to replace the pump.

This fuel pump replacement process is a bit tricky and you will need a professional mechanic to do it. 

Thus the whole operation is a bit expensive. Between $155 and $217 is the expected cost of labor, while between $700 and $812 is the projected cost of components.

6. Damaged Starter Solenoid: Replace the Solenoid

Damaged Starter Solenoid

Solenoids work by taking in both strong electrical impulses from the batteries of your lawn tractors and weaker electrical pulses when the ignition is switched on. When twisting the ignition key, a snap or murmur is a sign that the solenoid needs to be checked.

Solenoids can be repaired in rare cases but the process is complicated. So, the best option is to replace the whole starter solenoid. These solenoids are available for pretty cheap prices between $14-$20.

7. Broken Recoil Spring: Replace the whole Recoil Starter

Broken Recoil Spring

Breakages of recoil springs are rare in lawn tractors. But, it can happen and cause the lawn tractor not to start. Through a pulley mechanism, the recoil spring pulls back the beginning rope. 

The rope cannot be recoiled onto the pulley if the recoil spring fails, which prevents the Husqvarna engine from starting. 

Even though you can replace the recoil springs, they can break down again after a few months. Thus, we suggest you replace the whole recoil starter system. 

You should visit a dealership to replace the recoil starter which will cost you between $100-$200 depending on the tractor model and your location. 

8. Problematic Ignition Switch: Replace the Switch

Problematic Ignition Switch

The ignition switch in the Husqvarna lawn tractor rarely goes bad, but still, if it goes bad then the engine won’t start. When you rotate the key and the engine doesn’t even turn over that means you have a faulty ignition switch. 

The only way to fix a problematic ignition switch is to replace it with a new one. Husqvarna 532140301 Replacement Ignition Switch are compatible with most Husqvarna lawn tractors and they are available for $19-$22.

FAQs About Husqvarna Lawn Tractor Not Starting Issue

Husqvarna lawyer tractor not starting can be quite annoying and in the section below we will discuss a few of the faqs which will further clear all your queries related to this.

What would cause a Husqvarna lawn tractor not to start?

The Husqvarna lawn mower not starting can be due to many reasons and the most common reasons include a dead battery, faulty starter solenoid, or dirty carburetor. However, there can be some minor reasons like a damaged ignition switch and broken recoil spring.

Why is my Husqvarna lawn tractor turning over but not starting?

Contaminated fuel is most likely to blame. Fuel that has been sitting for a long time can ultimately degrade, clogging the fuel pump and line in the engine and making it impossible to start.

Why is my Husqvarna hard to start?

A blocked carburetor, which is typically brought about by leaving gasoline in the hedge trimmer for a prolonged period of time, is the most frequent cause of difficult and jerky starts in Husqvarna lawn tractors.

Why won’t my Husqvarna lawn tractor start when it’s cold?

When it’s cold, the oil in the tank can become thicker and eventually lead to a lower flow of oil to the engine which can cause this problem.


By now we hope that you have a clear idea of why your Husqvarna lawn tractor won’t start and quick fixes for them. But, before you start with the troubleshooting you must have a proper idea of the internals of your lawn tractor. 

However, even after following our guide, if you are not able to make your Husqvarna lawn tractor work then you will have to visit their dealership to solve the issues. 

Always remember to take proper safety precautions before working with your tractor if you are not careful enough you can cause further damage to the internals. 

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