Lawn mower stops after a few seconds

Lawn mower stops after a few seconds. If your lawnmower stops after a few seconds, you have already checked its gas and oil levels and then tried pumping the primer but if it dies after running for a few minutes.

There could be multiple reasons pertaining to which you can try out different ideas on how to tackle them.

Lawnmowers operate on small engines that rarely perform irregularly when used properly by someone who knows how to handle their maintenance because otherwise further complications may arise.

Nonetheless, if the mower continues to die after operating for only a couple of minutes even after pulling the cord more than once.

Lawnmower stops after a few seconds

lawn mower stops after a few seconds

Lawnmower problems can be frustrating when the lawnmower runs for a short time and then dies, or if it sputters along.

Fortunately, the causes of these problems and solutions are discussed in this post.

Fuel Line Problem

The fuel line should be kept free from anything that might clog it to ensure the fluid can flow through unhindered.

The tank itself may pick up particles when it’s open which could end up blocking the transfer of gasoline from the pump to the engine, causing your lawnmower to stop working.

Some lawn mowers may have a filter that removes debris and debris – you should assess whether yours is capable of removing such neglect or replacing if necessary.

Problem with Air Filter

The most common reason for a lawnmower to fail to keep running is due to a clogged air filter. To check if the filter is dirty and causing the motor to overheat, take it out of its compartment and remove it from the unit.

Check for dust, large debris, or oil buildup, and if any of them are present, use a cotton swab dampened with rubbing alcohol to clean the white foam or paper element inside paper filters that cannot be washed. If they will not wash clean, go ahead and buy another one!.


One of the most common problems with a balky engine is the carburetor. While you’re on that engine’s maintenance kick, check for a dirty carburetor.

Clogged carburetors can sometimes be caused by letting fuel sit in the engine for a long time.

Some of the ingredients in the fuel may evaporate over time, leaving behind a thicker, stickier substance that will eventually clog. Try using a cleaning agent for your carburetor or rebuild and replace it if needed to unclog it.

Mower should Tune-Up

If you want your mower to run and give you a service for a long time, it is suggested to change the oil regularly as this will keep everything flowing through it cleanly and free of any accumulated sludge.

Additionally, you should service your mower at least once per year (if you live in a cold climate).

The fuel cap is defective

The fuel level in the tank decreases as the engine consumes fuel. A small vent in the fuel cap allows air to enter the tank to compensate for this.

If the fuel cap vent is clogged or restricted it will be unable to do its job and there will not be enough air pressure in your gas tank.

As a result, you’ll find yourself dealing with a number of different kinds of issues if this is something that goes unnoticed, including stalling out or even destructive damage to your engine block.

Your lawnmower’s manual will provide instructions on how to unclog a clogged gas cap but it may also help you get rid of some other problems you may have been dealing with such as fuel filter clogs, carburetor malfunction, or transmission problems.

Related Guides