Your Lawn Mower Won’t Start?- Here’s The Fix!

possible reasons why your lawn mower might not start

Nothing is more frustrating than when your lawn mower won’t start. Whether you are trying to get ready for a weekend of yard work or just maintain the lawn, a malfunctioning mower can put a damper on your plans. Here are some common reasons and possible fix, to help you troubleshoot your lawn mower when it’s not starting.

Please, be sure to always refer back to manufacturer instructions when making repairs or performing maintenance work on your machine as this will ensure that you are following all safety protocols and best practices when dealing with mechanical components such as engines and spark plugs etc.

Quick overview of the common problems and possible fix

Reasons why your lawn mower won't start.
Infographic on common reason of a lawn mower that won’t start with possible solutions.

10 Possible Reasons Why Your Lawn Mower Won’t Start

Low fuel can Cause the mower not start

One of the simplest and most common reasons why your lawn mower won’t start is due to its fuel level being too low. If you have not used it for a while, check the fuel tank and make sure that there is enough gasoline in there to power the engine. If necessary, add more gasoline until it reaches an appropriate level for your engine.

Old gas can cause the mower not to start

If the gas in your lawn mower is more than 30 days old, it needs to be replaced. Over time, gas breaks down and becomes stale, which can cause your lawn mower to have starting issues.

Low engine oil can cause the mower not to start

Another common reason a lawn mower won’t start is because the oil level is low. Lawn mowers need oil to lubricate their engines, so if there’s not enough oil, the engine will seize up and won’t start. Check the oil level and add more oil if necessary.

Flooded engine can cause the mower not to start

This can happen if too much gas is used when starting the lawn mower or if the engine is not vented properly. If the engine is flooded, it will need to be cleared before it will be able to start.

Faulty spark plug can cause the mower not to start

The spark plug is responsible for providing a spark to ignite the fuel in order to power up your lawn mower’s engine. A faulty spark plug will cause your engine not to start, so check if it needs replacing before continuing with other troubleshooting steps. To do this, first remove the spark plug from its housing and inspect it for any signs of damage or corrosion. If necessary, clean it with steel wool or replace it with a new one. Make sure that you install the new one correctly as per manufacturer instructions before continuing with other steps.

Dirty air filter can cause the mower not to start

Your air filter is responsible for keeping dust and debris out of your engine while providing clean air to facilitate combustion within the cylinder chamber. If this air filter is dirty or clogged then it will prevent oxygen from entering and fueling combustion within your engine, which may cause problems starting up your lawn mower’s engine. Check if this filter needs cleaning or replacing before continuing with other steps and follow manufacturers recommendations when doing so.

Dirty carburetor can cause the mower not to start

The carburetor mixes fuel and air together before it goes into the engine, so if it’s not working properly, the engine won’t start. You can clean or replace the carburetor to fix this problem.

Dull blade can cause the mower not to start

A dull blade can cause the engine to overheat, so make sure you sharpen or replace the blade before trying to start your lawn mower.

Dead or faulty battery can cause the mower not to start

If your lawn mower has an electric starter, a dead battery can prevent it from starting. If the battery is more than three years old, it should be replaced.

Bad starter can cause the mower not to start

If your lawn mower has an electric starter, a bad starter can prevent it from starting. A bad starter will need to be replaced by a qualified technician.

Frequently Asked Questions (FAQs)

Can spark plug cause mower not to start?

The spark plug is responsible for providing a spark to ignite the fuel in order to power up your lawn mower’s engine. So, a faulty spark plug will cause your engine not to start.

Can air filter cause mower not to start?

Air filter is responsible for keeping dust and debris out of your engine while providing clean air to facilitate combustion within the cylinder chamber. If this air filter is dirty or clogged then it will prevent oxygen from entering and fueling combustion within your engine, which may cause problems starting up your lawn mower’s engine.

Can carburetor cause mower not to start?

The carburetor mixes fuel and air together before it goes into the engine, so if it’s not working properly, the engine won’t start.

Can blade cause mower not to start?

A dull blade can cause the engine to overheat, so make sure you sharpen or replace the blade before trying to start your lawn mower.

Can battery cause mower not to start?

If your lawn mower has an electric starter, a dead battery can prevent it from starting. If the battery is more than three years old, it should be replaced.

Conclusion

Maintaining a functioning lawn mower can be difficult at times but by following these simple troubleshooting steps, you should be able to diagnose any potential issues that may be preventing your lawn mower from starting up properly.