Sylvie Willis
If your Stihl chainsaw is stalling or struggling to start, the problem could be a clogged fuel filter. Stihl chainsaws contain a fuel filter in the gas tank, which can be easily accessed and cleaned or replaced. This involves removing the fuel tank cap, emptying the tank, and pulling out the fuel filter with a metal hook or long-nosed pliers. A new fuel filter can then be pushed into the tank, and the tank can be refitted and filled with fuel.
| Characteristics | Values |
|---|---|
| Location | In the gas tank |
| When to change | When the chainsaw struggles to start, stalls, sputters and dies, or shuts off |
| Tools required | Metal hook, long-nosed pliers, screwdriver, wire |
| Steps | 1. Empty the fuel tank. 2. Remove the fuel cap. 3. Remove the fuel filter using a tool. 4. Push the new filter onto the fuel line. 5. Work the new filter into the line until the rubber touches the base. 6. Let the filter fall back into the tank. 7. Refill the tank. 8. Replace the fuel cap. |
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What You'll Learn
Chainsaw not starting? It could be a clogged fuel filter
If your chainsaw is not starting, the fuel filter could be clogged. The fuel filter is located in the gas tank of your Stihl chainsaw. It is important to keep the fuel filter clean as it helps to keep impurities from entering your carburettor. Over time, the filter can become clogged with sediment and impurities, causing the chainsaw to stumble, shut off, sputter, or die.
To replace the fuel filter, start by placing the chainsaw on a flat surface and removing the spark plug boot to prevent accidental start-up. If the gas tank is full, siphon the fuel into a gas can or simply leave it if there is only a small amount remaining. Next, remove the gas cap by lifting the locking lever to the vertical position and turning it counterclockwise. If the gas cap is connected to a plastic strap anchored to the tank, let it hang freely.
Now, you will need to remove the fuel filter from the tank. Using a metal hook or long-nosed pliers, pull the filter out of the tank while holding the fuel line firmly with your other hand. Be careful not to let the fuel line fall back into the tank, as it will be difficult to retrieve. Once the filter is removed, pull the fuel pipe off the filter and discard both the filter and the fuel pipe.
To install the new fuel filter, push the end of the new fuel line through the hole in the tank, and gently push the fuel pipe retaining part into the hole using a non-sharp object. Pull the end of the fuel line out of the tank with long-nosed pliers, and push the new filter onto it. Finally, push the filter back into the tank, refit the fuel tank into its recess, and push the fuel pipe back into place.
It is recommended to inspect and change the fuel filter regularly as part of your chainsaw maintenance routine. You can also try cleaning your old filter with a strong solvent such as lacquer thinner, but it is generally better to replace it with a new one.
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How to access the fuel filter in the gas tank
To access the fuel filter in the gas tank of a Stihl chainsaw, you will need to remove the fuel tank from the chainsaw body. Here is a step-by-step guide:
- Place the chainsaw on a flat and level surface to ensure stability and prevent accidental spillage.
- Remove the gas cap by lifting the locking lever to a vertical position and turning the cap counterclockwise. If your chainsaw model has a collapsible ring, ensure it is down and flush with the top of the cap.
- If the tank is full, empty the fuel into a separate container. This can be done by siphoning the fuel or by using a tool like hooked wire or long-nosed pliers to remove the cap retainer and then pouring out the fuel.
- With the tank empty, turn the chainsaw on its side so that the fuel and oil tank caps are facing upwards.
- Undo both the petrol and oil tank caps.
- Now, follow the fuel line where it exits the tank. It is connected to the carburettor via a nipple. Use a screwdriver to gently push the fuel line back and away from the nipple.
- The fuel tank can now be removed from the chainsaw body. Lift it upwards, away from the body.
- With the fuel tank removed, you can access the fuel filter inside the tank. Use a metal hook or long-nosed pliers to carefully remove the filter from the tank.
Once you have accessed the fuel filter, you can choose to clean it with a strong solvent or replace it with a new one. If you decide to replace it, simply push the new filter onto the end of the fuel line and work it into the line until the rubber base of the filter. Then, carefully push the filter back into the tank, ensuring the fuel line is flat on the bottom.
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Removing the fuel filter from the fuel tank
To remove the fuel filter from the fuel tank of a Stihl chainsaw, you should first place the chainsaw on a flat, level surface. This will prevent accidental spillage and make the process easier. Next, remove the fuel tank cap by lifting the locking lever to the vertical position and twisting it counterclockwise. If the fuel tank is full, empty it using a hand siphon or by manoeuvring the chainsaw so that the fuel tank cap faces upwards and removing the cap.
Once the fuel tank is empty, you can begin to remove the fuel filter. Using a tool such as a metal hook, a piece of wire, or long-nosed pliers, reach into the fuel tank and catch the fuel line. Hold the fuel line firmly with one hand while you work the filter off, using a flat-head screwdriver if necessary. Be careful not to let the fuel line fall back into the tank after removing the filter, as it will be difficult to retrieve.
Now that the filter is removed, you can clean and reuse it or discard it and fit a new one. If reusing, clean the old filter by immersing it in a strong solvent such as lacquer thinner. Allow it to dry before refitting. To refit the filter, push it and the fuel line back into the fuel tank. Shake the chainsaw until the fuel line is flat on the bottom of the fuel tank, then fill the tank with fuel and twist the cap back on. Ensure the locking lever is flush with the top of the cap before operating the chainsaw.
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Installing a new fuel filter
First, set the chainsaw on a level surface and remove the spark plug boot to prevent accidental start-up. Next, take off the fuel cap by lifting the locking lever to the vertical position and turning it counterclockwise. If the cap is attached to a plastic strap anchored to the tank, let it hang freely.
Now, you need to remove the old fuel filter. Follow the fuel line where it exits the tank, and use a screwdriver to push it back and away from the carburettor. You can then pull the fuel tank up and away from the chainsaw body. Using a metal hook or long-nosed pliers, pull the filter out of the tank. Hold the fuel line firmly with one hand while you work the filter off with a flat-head screwdriver. Be careful not to let the fuel line fall back into the tank.
Once the old filter is removed, push the new filter onto the end of the fuel line. Work it onto the line until the rubber is touching the base of the filter. Then, let the filter fall back into the tank.
Finally, refill the tank and replace the fuel cap, ensuring that it clicks into place securely.
By following these steps, you can install a new fuel filter on your Stihl chainsaw, ensuring optimal performance and avoiding any issues related to a clogged or dirty fuel filter.
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Refilling the fuel tank
It is important to note that you should only refill the fuel tank when the chainsaw is cool and that you should always wear protective gear, such as gloves and eye protection, when handling fuel. Additionally, always store the fuel in an approved container and keep it out of the reach of children and pets.
- Before refilling, check the fuel level to ensure that you have enough fuel to complete your task.
- If you are refilling after changing the fuel filter, shake the chainsaw until the fuel line is flat on the bottom of the fuel tank before filling it up.
- Always use the correct type of fuel for your chainsaw, as recommended by the manufacturer.
- If you are storing your chainsaw for an extended period, consider emptying the fuel tank and storing the fuel in a safe place.
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Frequently asked questions
The fuel filter on a Stihl chainsaw is located in the gas tank.
To access the fuel filter, you need to remove the gas cap by lifting the locking lever to the vertical position and turning the cap counterclockwise.
To remove the fuel filter, you can use a metal hook or long-nosed pliers. Pull the filter out of the tank and then pull the fuel pipe off the filter.
Push the new filter onto the end of the fuel line and work it into the line until the rubber is touching the base of the filter. Let the filter fall back into the tank, then fill the tank and replace the fuel cap.
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