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Chainsaw fuel lines can clog, crimp, or crack over time, causing the engine to stop working. Replacing the fuel pickup in a chainsaw gas tank can be a challenging task, but with the right tools and knowledge, it can be done efficiently. The process involves removing the fuel lines from the carburetor, pulling them out of the tank, and installing new ones. It is important to ensure that the new fuel lines are cut to the proper length and inserted carefully to avoid damage.
Characteristics | Values |
---|---|
Tools required | 7/16-inch socket driver, approved fuel container, paper towels or shop rags, work gloves, Allen wrench, needle-nose pliers, scissors, hemostat pliers |
Steps | 1. Remove fuel cap and empty fuel tank into an approved storage container. 2. Remove the cylinder shield using an Allen wrench. 3. Disconnect the spark plug wire and remove the air filter. 4. Remove the fuel filter. 5. Remove the carburetor using a 7/16-inch socket driver. 6. Pull the carburetor from the engine block, being careful not to bend the throttle linkage or damage the gas lines. 7. Remove the old fuel lines using needle-nose pliers. 8. Cut the new fuel lines at an angle and push them into the tank. 9. Install the fuel filter. 10. Reinstall the carburetor, air filter cover, and spark plug. 11. Reinstall the cylinder shield and refill the fuel tank. |
What You'll Learn
Empty the gas tank
Emptying the gas tank of your chainsaw is a necessary step when replacing the fuel pickup, and it's also a good idea when cleaning or maintaining your chainsaw. Here's a detailed guide on how to empty the gas tank:
- Work in a well-ventilated area: Before you begin, ensure that you are working outdoors or in a well-ventilated space to avoid inhaling gasoline fumes.
- Wear protective gear: Put on work gloves and safety goggles to protect your hands and eyes from any spills or debris.
- Prepare an approved fuel container: Have an approved fuel container ready to collect the gasoline. This container should be specifically designed for storing flammable liquids and have a secure lid.
- Remove the fuel cap: Loosen and remove the fuel cap from the chainsaw's gas tank. Be careful not to lose the cap, as you will need it later.
- Siphon out the fuel: Using a manual siphon pump or a small funnel, carefully transfer the gasoline from the tank into the approved fuel container. Ensure that you are in a safe area, away from any open flames or sparks.
- Absorb residual fuel: Once you've emptied the tank, use paper towels or shop rags to absorb any remaining fuel droplets or residue. It is important to dispose of these rags responsibly, as they will be soaked in flammable liquid.
- Clean the gas tank: If you are cleaning or maintaining your chainsaw, now is the time to clean the inside of the gas tank. Use a small amount of water or a specialised gas tank cleaner to flush out any debris or sludge that has built up inside the tank.
- Reinstall the fuel cap: After the tank is empty and clean, securely tighten the fuel cap back onto the gas tank.
- Dispose of the fuel: Finally, make sure to dispose of the gasoline in the approved fuel container responsibly, following local regulations and guidelines.
Remember to exercise caution when handling gasoline and always work in a well-ventilated area to avoid inhaling fumes.
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Remove the cylinder shield
To remove the cylinder shield, you will need an Allen wrench. This is the tool required to remove the screws that hold the cylinder shield in place, attached to the engine.
First, locate the cylinder shield and identify the screws that are holding it in place. These are usually located around the edge of the shield, where it meets the engine. There may be several screws, so make sure you have a clear view of all of them and that you can access them with your Allen wrench.
Now, use the Allen wrench to carefully remove the screws. Place them somewhere safe, as you will need them again when you are reassembling the chainsaw. Once the screws have been removed, you should be able to lift the cylinder shield away from the engine. Set it aside in a safe place, where it will not be damaged or lost.
With the cylinder shield removed, you will now be able to access the fuel lines and other components of the chainsaw for repair or replacement.
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Disconnect the spark plug wire and air filter
Disconnecting the spark plug wire and air filter is an important step when replacing the fuel pickup in a chainsaw gas tank. Here is a detailed guide on how to do this safely and effectively:
Before beginning any work on your chainsaw, it is crucial to prioritise your safety. Ensure you are wearing appropriate protective gear, including work gloves, to shield your hands from any potential harm. Additionally, perform all repairs in a well-ventilated area to mitigate the risks associated with inhaling hazardous fumes.
Now, let's delve into the process of disconnecting the spark plug wire and air filter:
- Locate the spark plug wire and air filter: Familiarise yourself with the chainsaw's anatomy. The spark plug wire is attached to the spark plug, which is typically situated near the engine. The air filter, on the other hand, resides within the air filter housing, which needs to be accessed for removal.
- Disconnect the spark plug wire: Carefully detach the wire from the spark plug. This step is crucial for safety reasons, as it minimises the risk of accidental ignition during the repair process.
- Remove the air filter cover: Using your tool kit, remove the cover from the air filter housing. This will grant you access to the air filter itself.
- Extract the air filter: With the cover removed, you can now pull out the air filter. It may be held in place with some resistance, so a gentle yet firm pull should suffice.
At this stage, the spark plug wire and air filter should both be successfully disconnected and removed. It is important to set them aside safely and proceed with the next steps in the repair process, which will involve removing the fuel filter and carburetor. Remember to refer to the specific instructions provided by the manufacturer for your particular chainsaw model.
By following these steps, you can effectively disconnect the spark plug wire and air filter, setting the stage for a safe and efficient fuel pickup replacement in your chainsaw's gas tank.
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Remove the carburetor
Removing the carburetor is a crucial step in replacing the fuel pickup in your chainsaw's gas tank. Here is a detailed, step-by-step guide on how to remove the carburetor:
Before beginning, ensure you have the necessary tools, including a 7/16-inch socket driver and an approved fuel container. It is also important to work in a well-ventilated area.
Step 1: Remove the Fuel Cap and Drain the Tank
- Start by removing the fuel cap from the chainsaw's gas tank.
- Use an approved storage container to drain the remaining fuel from the tank.
Step 2: Remove the Cylinder Shield
- Using an Allen wrench, remove the screws that secure the cylinder shield to the engine.
- Carefully lift off and set aside the cylinder shield.
Step 3: Disconnect the Spark Plug Wire and Remove the Air Filter
- Disconnect the wire from the spark plug.
- Remove the cover of the air filter housing and take out the air filter.
Step 4: Remove the Carburetor Mounting Nuts
Using a 7/16-inch socket driver, remove the two mounting nuts that hold the carburetor in place on the engine.
Step 5: Detach the Air Filter Housing
Pull the air filter housing off the carburetor.
Step 6: Disconnect the Fuel Lines
- Carefully pull the carburetor away from the engine block, being cautious not to bend the throttle linkage or damage the gas lines.
- Use needle-nose pliers to detach the gas lines from the carburetor.
Step 7: Remove the Carburetor
- Disconnect the throttle linkage.
- Gently pull the carburetor off the mounting studs, checking the mounting gasket and replacing it if necessary.
At this point, you have successfully removed the carburetor. It is important to note that you should take digital photos of the throttle linkage and gas line connections to ensure accurate reassembly. Additionally, you may want to clean or rebuild the carburetor before reinstalling it, especially if it is dirty or clogged, which can hinder the performance of your chainsaw.
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Reinstall the new fuel lines
To reinstall the new fuel lines, you will need a pair of scissors, needle-nose pliers, and a lubricant.
Firstly, cut the new fuel lines at an angle to thread them into the tank. Push the large line about 1 inch into the tank. Push the small line into the tank, too, but make sure it is long enough to be grabbed through the mouth of the tank with needle-nose pliers. Pull the small line out through the mouth of the tank.
Secondly, cut the end of the small line square and install the fuel filter. Pull the line back into the tank so that the filter rests at the bottom of the tank. Trim the fuel lines.
Thirdly, connect the fuel lines to the carburettor. To ease threading, lubricate the fuel lines with a drop of oil.
Finally, slip the carburettor onto the mounting studs and push it into place. Position the air filter housing on the protruding studs.
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Frequently asked questions
First, empty the gas tank in a well-ventilated area. Then, remove the cylinder shield and disconnect the spark plug wire and air filter. Remove the carburetor and the old fuel lines. Cut the new fuel lines at an angle and push them into the tank. Reinstall the carburetor and the air filter cover, and connect the spark plug. Finally, refill the fuel tank.
You will need a 7/16-inch socket driver, an Allen wrench, needle-nose pliers, scissors, and work gloves.
The fuel lines in your chainsaw can clog, crimp, or crack over time, restricting fuel flow and preventing the engine from starting.