14 Reasons Your Husqvarna Mower Loses Power

You have seen that the power that your mower formerly provided is no longer present. It’s possible that it’s just because you’re pushing your engine too hard, or it might be a sign of anything more serious going on.

When the engine of a Husqvarna mower becomes too hot or when it does not get enough ventilation and fuel flow, the mower’s power decreases.

This may be the consequence of a low amount of engine oil, blocked air passages, plugged air filters, a filthy carburetor, or limited fuel components. Alternatively, this may be the result of restricted fuel components.

When the engine of a Husqvarna mower is put under stress, for example because the mower deck is clogged with debris or because the ground speed is too high for the circumstances in which it is being used, the mower may start to lose power. Continue reading for further information.

The following might be causing your Husqvarna lawn mower to lose power:

  1. Obstructed air filtering system
  2. Old fuel
  3. Plugged fuel filter
  4. Clogged gasoline lines
  5. An unclean carburetor
  6. Bad spark plug
  7. Low engine oil level
  8. An excessive amount of motor oil
  9. Clogged air passageways
  10. Contaminated cooling fins on the engine
  11. There is an excessively rapid ground speed.
  12. Utilizing a mower to cut through damp or dense grass.
  13. Plugged mower deck
  14. Running dull mower blades

outdoorstip Husqvarna Mower

This Is the Reason Why Your Husqvarna Mower Is Losing Power and Bogging Down

1. Obstructed air filtering system on a Husqvarna Mower

It is important to make use of the air filter in order to prevent dirt from entering the air intake and causing damage to the engine.

However, if you do not maintain the filter clean, you run the risk of causing harm to the engine. The grass clippings and dirt that are kicked up by your mower when you are mowing might cause the air filter to get clogged. Mowing is a dusty task.

The accumulation of dirt on the filter may prevent air from going through the filter, which in turn can cause the engine to start losing power and eventually bog down.

It is a good habit to change out your old air filter for a brand-new one once a year. After that, clean it many times before, during, and after the mowing season.

If you are mowing in particularly dusty circumstances, you may need to clean or replace your filter more regularly. Instructions on how to clean a paper air filter are given in this post. If your mower utilizes a different kind of filter, see to the operator’s handbook for more instructions.

The Step-by-Step Guide to Cleaning the PAPER Air Filter on Your Husqvarna Lawn Mower:

  • ¬†Take off the cover that was on the housing for the air filter. Clips, knobs, or wing nuts are often used to secure this in place.
  • Remove the air filter with caution so that you don’t let any dirt into the air intake.
  • Using a clean, dry cloth, remove any remaining dirt that may be found in the housing of the air filter.
  • Tap your air filter on a hard surface to loosen as much dirt as possible and get it out of the filter.
  • Place your filter so that it is facing a light source. You may safely reuse the filter if you can see light shining through the paper when you hold it up to the light. If you are unable to do so, or if the filter is broken or soiled with oil, you should replace it with a new one.
  • Replace the air filter cover when you have finished installing the filter.

2. Old Fuel in a Husqvarna Mower

Utilizing gasoline that is too old may undoubtedly cause your engine to lose power. This is due to the fact that deterioration of gasoline starts as soon as 30 days after it has been purchased.

There is a possibility that the ethanol and moisture that were pulled into the fuel system could leave behind sticky deposits that will limit the flow of gasoline. When the engine does not get a enough amount of gasoline, it will suffer a loss of power.

If you notice that the fuel in your mower has gone bad, you should flush it out and refill the tank with new gasoline. Mowers manufactured by Husqvarna that are powered by gasoline must use unleaded fuel with an octane value of at least 87 and a maximum of 10% ethanol content.

You could still come across people using older Husqvarna push mowers that use 2-cycle engines, despite the fact that newer Husqvarna mowers have 4-cycle engines that call for unleaded fuel and are made today.

The fuel tank of a 2-cycle engine must contain a combination of gasoline and oil. Here you may learn more about how to choose the appropriate kind of gasoline for your Husqvarna mower.

It is useful to add Sea Foam if there is more gas available than there is room for consumption during a period of thirty days. Sea Foam is something that I like to apply to every tank of gasoline since it helps keep the gas stable and it provides further protection for the fuel system and the engine.

In this guide, you’ll discover further information on the reasons why I like Sea Foam.

3. Plugged Fuel Filter on a Husqvarna Mower

As gasoline is drawn from the fuel tank, it is filtered by a fuel filter, which prevents contaminants such as dirt and debris from entering the fuel system. If the filter is not routinely replaced, it will eventually get clogged, which will prohibit gasoline from flowing through the filter.

When conducting the usual maintenance of your Husqvarna mower, it is a recommended idea to change out the fuel filter on a yearly basis. This filter is a very cheap component that, if it fails to strain dirt effectively, may avoid problems with the supply of fuel as well as substantial damage to the engine.

To change the filter, turn off the flow of gasoline on the mower by using the fuel shut-off valve or fuel pinch-off pliers, depending on whether or not your mower has a shut-off valve.

Take off the clamps, remove the filter from where it is attached to the gasoline lines, and replace it with a new filter.

It is important to pay attention to the arrow that is located on the side of the majority of inline filters. When installing the filter, ensure that the arrow is pointing in the direction that fuel will flow through it.

It is important to ensure that the arrow is pointing in the direction of the carburetor rather than the gasoline tank.

4. Clogged gasoline lines on a Husqvarna Mower

The sticky deposits that might form as a result of running old gas can cause the fuel lines to get clogged.

Stopping the flow of gasoline, disconnecting the end of a part of the fuel hose, and storing it in a container are the steps you need to do to examine your Husqvarna mower for a possible blockage. In order to verify that there is enough flow coming out of the fuel line, start the fuel flow.

When you discover a blocked fuel line, you must first stop the flow of gasoline and then remove the piece of the line that is attached to the Husqvarna mower. Cleaner for the carburetor should be sprayed into the line.

The purpose of this is to assist in releasing the blockages. In order to remove the blockage, you will need to blow compressed air through the line.

If you are unable to remove the obstruction or discover that your line is dry and cracked, you will need to replace it with a new gasoline line that has the same length and diameter as the old one.

5. An unclean carburetor on a Husqvarna Mower

The carburetor that is attached to your mower is an essential component. It controls the proportion of fuel to air that is introduced during the combustion process.

When you put old fuel through your engine, it leaves behind particles that might build in your carburetor and block the airways. When this does place, the filthy carburetor might result in a decrease of power for your Husqvarna.

You will need to clean the carburetor if it is preventing gasoline from reaching the cylinder. Remove the air filter from your carburetor and then spray some carburetor cleaner into the air intake before you begin disassembling your carburetor.

Start your vehicle’s engine to find out whether it will really work. If the lawn mower won’t keep running, the carburetor has to be taken out and cleaned thoroughly.

6. Bad Spark Plug on a Husqvarna Mower

A fouled spark plug might result in an intermittent spark, which can lead to a loss of power in the vehicle. Check the tip of your spark plug for any traces of carbon, dirt, or oil that may have accumulated there.

If you locate a spark plug that is filthy or broken, it is best to replace it with a new one so that you can be confident that the mower is always using a good plug.

Alternately, you may try to clean it with a wire brush and reuse it if it is just filthy and not a very dark color. This is an option if it is only dirty and not very dark in color. Check that the gap corresponds to the requirements mentioned in the operator’s handbook for your machine.

7. Low Engine Oil Level on a Husqvarna Mower

You will notice a decrease in power if the amount of motor oil in the crankcase of your Husqvarna mower falls below the recommended level. It’s possible that you don’t have enough oil because the previous time you changed the oil, you didn’t put enough oil into the crankcase.

It is also possible that this is the consequence of an oil leak in the engine or the burning of oil as a result of operating the vehicle with the incorrect oil viscosity.

It is never a good idea to let the oil level on your mower go too low. If you do, and the problem is not discovered in a timely manner, you might do serious damage to the engine, which would result in an expensive repair bill or perhaps the need to replace the engine.

Oil for the engine is essential for maintaining the lubrication of the moving components within the engine. Because there is insufficient lubrication, there is increased friction between the moving components, which results in a significant increase in temperature.

Because of this, your Husqvarna lawn mower may overheat, which may cause smoke to emanate from burning oil and melted components.

As a safety measure, before each usage of your Husqvarna mower, you should check the amount of the engine oil.

I am aware that this will add a little bit more work to your already hectic schedule, but it won’t take long, and it will help you find oil leaks and engine problems before they become major issues.

To determine whether or not your vehicle’s engine has sufficient oil, remove the dipstick and wipe the stick with a cloth that has been well cleaned. First, the dipstick should be replaced, and then it should be removed. Make sure the oil level is correct. It is necessary for the oil to reach the maximum level shown on the dipstick.

In the event that it is not, add more engine oil until it is completely filled. If you overfill it, you’ll create additional issues for yourself in the long term.

If you continue to suffer issues with your engine even after you have filled it up to the maximum level, you should have an expert small engine technician examine it for you so they can make a diagnosis.

There is a possibility that a low level of engine oil produced internal damage that cannot be repaired by adding a tiny bit of new oil.

8. An excessive amount of motor oil in a Husqvarna Mower

If you put too much engine oil in the crankcase, it can cause your vehicle’s engine to smoke. Because there is an excessive amount of engine oil, there is an increase in pressure, which might cause oil to be forced into the cylinder via the valve train.

as this occurs, the smoke that is produced as the oil burns in the cylinder has a bluish-white tint to it.

This dense column of smoke has the potential to clog your air filter, which will make it difficult for your engine to acquire the clean air it needs to function properly. Perform a check on both the air filter and the spark plug, and if necessary, either clean or replace them.

If you continue to run your Husqvarna mower with an excessive amount of oil, you may end up damaging the seals, hydrolocking the engine, and bending the piston rod.

Take Out Some of the Engine Oil Here and There

You may remove the oil from the engine by first releasing the drain plug, then swiftly re-tightening it so that just a little amount of oil can escape from the engine. A turkey baster or an oil evacuator may also be used in order to extract oil from the region of the oil filter as well as the oil fill area.

9. Blocked airways and ventilation systems on a Husqvarna Mower

The air is what keeps the engine from overheating. The cylinder head and the engine block both have air circulating around them.

It is essential to maintain clean cooling fins in order to prevent them from being clogged with debris such as grass clippings and dirt, which would reduce the volume of air that is circulated through the engine. Repair or replace any cooling fins that are damaged.

In order to prevent the engine from overheating and experiencing a loss of power, it is necessary to clean the regions surrounding the engine shroud as well as the air intake vents. Debris that has accumulated in the cooling fins of the vehicle must be removed.

10. Blocked Air Passageways on a Husqvarna Mower

In order to avoid the engine from overheating and losing power, it is imperative that it be maintained cool. Remove any debris, including grass clippings, dirt, and other particles, that may have accumulated around your engine in order to ensure that it has enough air circulation.

Clean out all of the trash that has accumulated beneath the shroud that covers your engine. Check to ensure that the heat shield is fastened in place properly.

11. There is an excessively rapid ground speed with a Toro Mower

It may seem like a good idea to try to accomplish your mowing duty as fast as possible so that you can go on to resting for the day, but doing so may be the reason why your Husqvarna mower is losing some of its power.

When mowing thick, wet, or tall grass, mowing your lawn at a rapid pace might impose an additional weight on your mower.

If you want to put less pressure on your Husqvarna mower, you should run it at a slower pace so that you can account for the circumstances in which you are cutting the grass. This includes reducing your speed while moving uphill with the mower.

12.Utilizing a mower to cut through damp or dense grass with a Husqvarna Mower

You should avoid mowing the grass while it is wet or moist. Your car’s engine has to work harder since the grass is wet.

It is more prone to clumping together and clinging to the bottom of the mower deck than other types of grass. When the grass on your lawn is dry, you will get the cleanest cut possible with your mower.

It is recommended that you trim your lawn on a consistent basis in order to maintain it at a length that is easily controllable. In the event that your grass grows to be an excessively tall height, the mower can get stuck while trying to trim it.

Even if you do all in your power to keep the grass cut short, there will always be occasions when it grows too long.

For the greatest possible results and to prevent the engine from being overworked, you should double or even triple cut your lawn while you are mowing thick grass. To do this, set the cutting height on the mower deck to its maximum position before making the first cut, and then reduce it before making the subsequent cut.

13. Plugged Mower Deck Causes a Husqvarna Mower to Lose Power

To prevent the engine from being overworked and suffering a loss of power, the space below the mower deck has to be maintained clean and clear of any debris at all times. It is important that the Husqvarna mower blades have room to move freely while they are turning beneath the deck of the mower.

When the mower deck is full with junk, it requires the engine to work harder in order to spin the blades through the material, which puts additional pressure on the engine. To keep the deck of your mower clean, you should scrape it on a regular basis to eliminate debris.

This is not only beneficial to your vehicle’s engine, but it also helps you prevent a horrible cut.

14. Dull Mower Blades on a Husqvarna Mower

Dull mower blades compound a clogged deck issue. To spin the blades, you will need more engine power if you add worn blades to a plugged deck that is already suffering a loss of power. This is because the deck is already experiencing a loss of power.

Perform a check on your blades, and if necessary, sharpen or replace them. You may get additional information about checking the sharpness of your blades and the process of sharpening them at this link.

Continue to Experience Difficulties with Your Husqvarna Lawn Mower?

Check read my guide on the most frequent issues that other Husqvarna owners have reported experiencing with their lawn mowers if you are still having issues with the mower you purchased.

In the event that you are not confident in your ability to diagnose and execute repairs on your Husqvarna lawn mower, it is in your best interest to seek help from the Husqvarna dealership or lawn mower repair shop in your area.

In order to prevent injury or further damage to the mower, you need to keep yourself safe and only conduct repairs that are within your mechanical capabilities.