Do You Need to Change Your Lawn Mower's Fuel Filter?

Fuel filters are disposable lawn mower spares that can clog over time and must eventually be replaced. So is it time to change your lawn mower's fuel filter? The answer depends on the type of filter you have, whether you changed it this year, and how well your mower is currently running.

Some smaller walk-behind lawn mowers have an in-tank filter that should only be replaced by an experienced technician. That said, this filter is a screen designed to catch the coarsest debris: it can take years to clog.

Some larger lawn tractors and riding mowers come with inline fuel filters. This filter bisects the fuel line from the tank to the carburetor. Some lawn mower owners even upgrade to an aftermarket in-line filter by cutting the fuel line and installing a filter.

You should change your lawnmower's in-line fuel filter at least once a year. Some lawn mower owners like to replace this filter during spring maintenance. Others do this before the lawnmower is harvested in the fall.

Also, if you use your lawn mower a lot, we recommend that you replace your lawn mower filter more than once a year. Track hours of lawn mower use each season. Once you've used your lawn mower for more than 100 hours, you should replace its in-line filter.

Is your lawnmower not working well? Are you beginning to suspect that a clogged fuel filter is blocking airflow?

Impurities in gasoline can end up in the fuel filter. More likely, dirt or debris in the fuel tank will fill the fuel filter. Nothing can clog an inline fuel filter as quickly as a rusted tank: powdery red rust can come off the inside of the tank and go straight to the filter.

If you have a clear inline fuel filter, you can always do a visual inspection: look for any sticky, dust, or other impurities covering or discoloring the filter filaments. But it's also entirely possible that your filter is clogged and looks normal. So it's never a bad idea to make sure to change the filter. When changing a fuel filter, you can also tell how well gasoline is flowing into the filter, which can help you diagnose other problems.

The above briefly describes the precautions for replacing the fuel filter of the lawn mower. If you want to buy a fuel filter or other spare parts for the lawn mower, please contact us.

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