Sylvie Willis
If your Briggs & Stratton lawnmower is not working properly, you may need to replace the fuel filter. The fuel filter may be located inside the fuel tank, in which case you will need to drain the tank before removing the filter. You can refer to your Briggs & Stratton Engine Operator's manual to determine the location of the fuel filter and the correct replacement filter. This process requires safety eyewear and a dry cloth to catch any dripping fuel.
Characteristics and Values Table for Removing Fuel Filter from Briggs and Stratton Lawnmower
| Characteristics | Values |
|---|---|
| Fuel Filter Location | May be an in-tank design; refer to the Briggs & Stratton Engine Operator's manual |
| Tools Required | Phillips-head screwdriver, 5/16-inch socket or nut driver, pliers |
| Safety Precautions | Wear safety eyewear; ensure no open flame or fire source; have a dry cloth to hold the filter and catch fuel drips |
| Fuel Filter Inspection | Shake the filter over a clean cloth to displace fuel; check for debris clogging the mesh screen, pleated paper, or inside the casing |
| Fuel Filter Replacement | Disconnect fuel line or close fuel valve; remove and replace the filter, ensuring the direction of flow arrow is correct; reconnect metal clips and check for leaks |
| Fuel Filter Maintenance | Annual replacement recommended during spring or fall maintenance; choose a filter with a smaller micron number for better filtration |
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What You'll Learn
Prepare the new fuel filter and line assembly
To prepare the new fuel filter and line assembly, start by trimming the new line to match the length of the old one. Attach the shorter end of the fuel line to the port on the tank and the longer end to the carburetor port. Ensure that the gasket is in the correct position on the air filter housing. Then, attach the breather tube to the breather post and realign the housing.
Secure the line with the retaining clamps. Torque the screws to three-and-a-half foot-pounds and realign the carburetor cover. With the new filter in place, reposition the filter cover and secure it with the screw.
Before starting the engine, reattach the wire and boot to the spark plug, and refill the fuel tank. Always ensure you are in a safe area with no open flames or fire sources. Wear safety eyewear whenever removing or inspecting a filter to protect your eyes from liquid fuel or fuel vapors.
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Disconnect the spark plug
To disconnect the spark plug, you will need a spark plug socket. First, disconnect the spark plug lead. Then, clean the area around the spark plug to avoid getting debris in the combustion chamber when you remove the plug. Next, remove the spark plug using a spark plug socket. If necessary, use a spark plug gauge to adjust the gap by gently bending the curved electrode. When the gap is correct, the gauge will drag slightly as you pull it through the gap. Now, reinstall the plug, taking care not to over-tighten (15 ft. lbs. maximum). Finally, attach the spark plug lead.
It is important to disconnect the spark plug lead and remove the wire and boot from the spark plug to prevent the engine from accidentally starting when performing any maintenance on your Briggs and Stratton lawnmower. This is a crucial safety step that should not be skipped.
You should also regularly check and replace your spark plugs. For consistent, easy starting, it is recommended to change spark plugs every 100 hours or every season on all of your outdoor power equipment engines. Additionally, for standard lawn mower and small engine maintenance, you should check and/or replace spark plugs annually and in accordance with the Operator's Manual.
If your lawn mower or outdoor power equipment won't start, a damaged spark plug may be the culprit. To check if your spark plug has gone bad, inspect your part for common signs suggestive of fouling or damage. The electrodes on a spark plug must be clean and sharp to produce the powerful spark required for ignition. The more worn or dirty spark plugs are, the greater the pull on the rewind, and more effort is required to produce an adequate spark.
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Remove the carburetor cover
To remove the carburetor cover from your Briggs and Stratton lawnmower, you will need to perform the following steps:
First, ensure the engine has cooled down. It is important to never work on a hot engine as you may burn yourself. Next, remove the wire and boot from the spark plug. This will prevent the engine from accidentally starting while you are working on it.
Now, you can begin to access the carburetor. Use a 5/16th inch socket or nut driver to unthread the screw securing the air filter cover. Once the screw is removed, take off the cover and the filter. Then, use a Phillips-head screwdriver to remove the screw that is securing the carburetor cover. With the screw removed, you can carefully lift off the carburetor cover, exposing the inner components.
At this point, you can inspect the carburetor and perform any necessary maintenance or repairs. It is important to note that fuel filters should be replaced annually, and it is recommended to wear safety eyewear when working on the filter to protect your eyes from fuel and vapors.
Once you have completed your maintenance or repairs, you can reassemble the carburetor cover by rethreading the screw and reattaching the wire and boot to the spark plug.
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Drain the fuel tank
To drain the fuel tank of your Briggs and Stratton lawnmower, you will need to perform the following steps:
First, ensure that the engine is cool before you begin any work on the lawnmower. Next, remove the wire and boot from the spark plug to prevent the engine from accidentally turning on during the process.
Now, you are ready to drain the fuel tank. Place a container beneath the fuel tank to collect the drained fuel. You can then open the drain plug or valve on the tank to start the draining process. Ensure that you are in a well-ventilated area during this step, as fuel vapors can be harmful.
If your fuel filter is an in-tank design, as is the case for some Briggs and Stratton models, you will need to drain the fuel tank completely before removing the filter. This is important for safety and to prevent spills. Once the tank is empty, you can proceed to remove the fuel filter for inspection or replacement.
After you have drained the fuel tank, it is important to properly dispose of the drained fuel. Do not pour it down the drain or into the ground. Instead, take it to a designated disposal facility or recycling center that accepts used motor oil and fuels.
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Check for leaks
Once you have removed the fuel filter from your Briggs and Stratton lawnmower, it is important to check for leaks. Before you begin, ensure you are in a safe area with no open flames or fire sources. Wear safety eyewear to protect your eyes from fuel or fuel vapours, and have a dry cloth handy to catch any dripping fuel.
First, check the mesh screen, pleated paper, or inside of the casing for debris or clogging. If the filter is clogged, be sure to replace it with a new one. When installing the new filter, pay attention to the direction of the flow arrow, as the filter must be installed correctly for proper operation. Reconnect the metal clips on both sides of the filter, and then remove the clamp on the fuel line or reopen the fuel valve.
Now, you can check for leaks. Keep the filter at a safe distance from your face and look through one end—you should be able to see light shining through clearly from the other side. If you notice any leaks, do not operate the lawnmower. Ensure that the gasket is in place on the air filter housing, and that the filter is secure. If the filter is secure and there are no leaks, you can reattach the wire and boot to the spark plug and refill the fuel tank.
If you are unable to locate the fuel filter, refer to your Briggs & Stratton Engine Operator's manual to determine its location. The fuel filter may be an in-tank design, in which case you will need to drain the tank before removing the filter for inspection or replacement.
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Frequently asked questions
The most common reasons for replacing the fuel filter are when the engine stops after a few seconds or runs poorly. You can also check if the mesh screen, pleated paper, or the inside of the casing is clogged with debris. It is recommended to change the fuel filter annually as part of your lawnmower's maintenance.
If you are unsure of where the fuel filter is, refer to your Briggs & Stratton Engine Operator's manual. If you are still unable to locate it, it may be an in-tank design.
You will need a Phillips-head screwdriver, a 5/16 inch socket or nut driver, and pliers.
Make sure you are in a safe area with no open flames or fire sources nearby. Wear safety eyewear to protect your eyes from liquid fuel or fuel vapors. Have a dry cloth handy to hold the filter and catch any dripping fuel.
