Ameer Randolph
A fuel filter keeps dirt from getting into the carburetor of your lawn mower. If it's clogged or dirty, it won't let enough fuel reach the carburetor, so the engine will run rough or stop running completely. You should replace the fuel filter on your lawn mower every year, or when it becomes damaged or clogged. This guide will take you through the steps to replace a fuel filter on a lawn mower.
| Characteristics | Values |
|---|---|
| When to replace | When the fuel filter is damaged, or there is debris inside the filter |
| How to replace | Open the engine cover, compress the fuel hose, move the hose clips away from the fuel filter, pull off the fuel filter from the hose ends, push the new fuel filter into the ends of the hoses, apply liquid detergent to the ends of the fuel filter, and ensure the arrow is pointing towards the engine |
| Safety precautions | Park the tractor on a level surface in a well-ventilated area, set the parking brake, turn the ignition switch off, and remove the key |
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What You'll Learn
How to access the fuel filter
To access the fuel filter on a lawn mower, you will need to open the engine cover. Before you do this, make sure you park the tractor on a level surface in a well-ventilated area, set the parking brake, and turn the ignition off.
Once you have opened the engine cover, you will need to compress the fuel hose to prevent leakage. Move the hose clips away from the fuel filter with a pair of flat pliers, and then pull the fuel filter off the hose ends.
If you are replacing the fuel filter, make sure you push the new one into the ends of the hoses. Apply liquid detergent to the ends of the fuel filter to make the connection easier. Make sure that the filter is installed in the correct direction — the arrow should be pointing towards the engine.
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Removing the old fuel filter
To remove the old fuel filter, park the tractor on a level surface in a well-ventilated area. Set the parking brake, turn the ignition switch off and remove the key. Open the engine cover to access the fuel filter. Compress the fuel hose to prevent leakage. Move the hose clips away from the fuel filter with a pair of flat pliers. Pull the fuel line off the spigot and remove the filter. For canister-style filters, look through the transparent plastic casing and examine the pleated material inside. If you can see debris inside, or if it is severely discoloured, you need a new filter. Tube-style filters can be rinsed out carefully with water until they are clear, or you can buy and install a new filter.
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Installing a new fuel filter
To install a new fuel filter on a lawn mower, first park the tractor on a level surface in a well-ventilated area. Set the parking brake, turn the ignition off and remove the key. Open the engine cover to access the fuel filter. Compress the fuel hose to prevent leakage and move the hose clips away from the fuel filter with a pair of flat pliers. Pull off the fuel filter from the hose ends.
Push the new fuel filter into the ends of the hoses. Apply liquid detergent to the ends of the fuel filter to make the connection easier. Make sure that the filter is installed in the correct direction — the arrow should be pointing towards the engine.
The fuel filter keeps dirt from getting into the carburetor. A clogged or dirty fuel filter doesn’t let enough fuel reach the carburetor, so the engine runs rough or stops running completely. Remove the old fuel filter and install a new one when you tune up your lawn tractor each year, using a manufacturer-approved lawn mower part.
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What to do if fuel leaks
If fuel leaks, compress the fuel hose to prevent further leakage. Move the hose clips away from the fuel filter with a pair of flat pliers. Pull off the fuel filter from the hose ends. Push the new fuel filter into the ends of the hoses. Apply liquid detergent to the ends of the fuel filter to make the connection easier. Make sure that the filter is installed in the correct direction — the arrow should be pointing towards the engine.
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How to know if your fuel filter needs replacing
It's important to replace your lawnmower's fuel filter after about 200 hours of use. You can refer to the owner's manual for guidance on how often to replace it. If you have a canister-style filter, you'll need to replace it as there's no way to clean it. Tube-style filters can be rinsed with water if there's dirt or debris inside, but if this doesn't work, you'll need to replace it.
The fuel filter is usually located in the fuel line or fuel tank of your mower. It's relatively small, with a round filter encased in a plastic or metal body. You can find a replacement filter wherever you purchased your lawnmower, at a discount centre, or online.
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Frequently asked questions
If the fuel filter is damaged, you may experience issues starting the lawn mower or a loss of power while using it. A clogged or dirty fuel filter can also cause the engine to run roughly or stop running completely. For canister-style filters, look through the transparent plastic casing and examine the pleated material inside. If you can see debris or it is severely discoloured, you need a new filter. For tube-style filters, look closely at the meshed end. If you see dirt or debris, rinse it out carefully with water until it's clear, or buy and install a new filter.
It is recommended that you replace your lawn mower's fuel filter once a year when you tune up your lawn tractor.
Park the tractor on a level surface in a well-ventilated area. Set the parking brake, turn the ignition switch off and remove the key. Open the engine cover to access the fuel filter. Compress the fuel hose to prevent leakage.
Move the hose clips away from the fuel filter with a pair of flat pliers. Pull off the fuel filter from the hose ends. Pull the fuel line off the spigot and remove the filter.
Push the new fuel filter into the ends of the hoses. Apply liquid detergent to the ends of the fuel filter to make the connection easier. Make sure that the filter is installed in the correct direction — the arrow should be pointing towards the engine.
