Investigate Problem

Why is my Lawn Mower not Working Properly?

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proposes Is your lawn mower not starting?

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Most common questions used to investigate

Is your lawn mower not starting?

Check the spark plug. Is there any sign of damage or wear?

Is the spark plug fitted correctly?

Check the air filter. Is it clean?

Has fuel been left in the tank for a long period of time?

Is the lawn mower losing power in the middle of mowing?

Check the air filter. Is it dirty or clogged?

Check the blades. Is there anything stuck in between them?

Check the cooling vents. Is there any dirt or debris stuck in there?

Is there smoke coming out of the lawn mower?

Check the oil chamber. Is it overfilled?

Check the exhaust pipe for any traces of oil. Is there oil in the pipe?

Is the grass not being cut properly?

Common conclusions

The problem is most likely be a faulty spark plug. Replace the plug with a new one and try again.

Place the plug on correctly as in an improper positioning of the plug will cause the lawn mower not to work properly.

Clean or replace the filter as for the mower to start, it needs air to pass through to the combustion chamber.

You may need to replace the carburetor as due to fuel left in the tank for a prolonged period of time, the carburetor may have gotten dirty and clogged.

Contact the original manufacturer and request service or contact an electrician as the problem may be with the fuel pump, ignition coil or with clogged tubes.

First clean or replace the filter as for the mower to start, it needs air to pass through properly to the combustion chamber which due to a clogged/dirty filter will not function properly.

The mower may bot be working properly because of a faulty or dirty spark plug. Clean the plug or replace it with a new one and try again.

Clean the blades as the debris may have caused them to fail to spin and in turn lead to the the mower being powered off.

Take the lawn mower to a professional to have it checked properly as the problem may be with a faulty engine.

If the oil is filled above the specified level, some of it leaks towards the exhaust which, when the lawn mower is turned on, burns the oil which causes smoke to pool up.

The smoke is normal as sometimes oil leaks into the exhaust which in turn burns up and creates smoke.

First check the blades. If there is any wear and tear or the blades are dull or bent, you should change the blades.

References

https://www.briggsandstratton.com/na/en_us/support/maintenance-how-to/browse/top-5-mower-troubleshooting-tips.html
https://www.repairclinic.com/RepairHelp/Lawn-Mower-Repair-Help

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Author

muneebbabar null
Hi! I’m Muneeb. My background is in Electrical Engineering, IT and General Sciences . I enjoy writing about electronics, DIY and Self-Help. I’m always in pursuit of interesting materials and I love reading books and blogs about new technologies, IT solutions or DIY guides. You can find me on LinkedIn at: [www.linkedin.com/in/muneeb-babar-]