Mercedes Mullins
A chainsaw is a powerful tool that requires proper care and maintenance to ensure optimal performance and longevity. One essential aspect of chainsaw maintenance is keeping the fuel tank clean and dry. Over time, the fuel tank can become contaminated with debris, sludge, or varnish buildup, leading to issues such as difficult starting, sputtering, and loss of power. Therefore, it is crucial to know how to effectively dry and clean the inside of the chainsaw's fuel tank to prevent these problems and maintain the chainsaw's performance.
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Drain the fuel tank
If you're not planning on using your chainsaw for a while, it's important to drain the fuel tank to ensure optimal performance when you next use it. Chainsaw fuel tanks should be checked and cleaned regularly, as debris can enter the tank and cause issues.
Before draining the tank, it's important to prepare your workspace. Move to a well-ventilated area and lay out your tools and materials. You will need a plastic gas can, a hand siphon with a hose, and a clean rag. It's a good idea to have some lubricant like WD-40 on hand to loosen any tight bolts.
Now, you're ready to begin draining the fuel tank. Start by wiping any dirt or dust from the gas tank lid and the top of the tank with the clean rag. This will prevent debris from falling into the fuel during the draining process.
Next, unscrew the gas tank lid. The screws can be notoriously difficult to turn, so use a lubricant if needed. Depending on the chainsaw model, you may need to remove the handlebar to access the lid. With the lid removed, you can now access the fuel tank.
Take the hand siphon and place the straight portion into the gas tank. Insert the drainage hose of the siphon into the plastic gas can. If your siphon has a hand pump, work the pump to begin siphoning the fuel. If it has a bulb, squeeze the bulb until you have removed all the fuel.
Finally, to ensure that you've removed every drop of fuel, poke the hose into all the cavities of the gas tank. You may need to remove a plastic guard and small clamp to access and disconnect the fuel line.
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Clean the tank
To clean the tank, you must first drain the fuel. Place a container designed for storing gas next to the chainsaw. Remove the chainsaw's gas tank lid by unscrewing it with a wrench. If the screws are difficult to turn, spray them with a lubricant like WD-40. You may also need to remove the handlebar to access the lid. Place a hose into the chainsaw's gas tank and the other end into the container. Work the hand pump or squeeze the bulb until all the oil and fuel mixture is removed.
Next, unhook the fuel line to prevent water or cleaning products from getting into the engine. Remove the plastic guard and small clamp to access and disconnect the line. Be careful when performing this step. A small amount of gas may remain in the fuel line, which you can pour into the gas can.
Now, the tank is ready for cleaning. Pour a small amount of carburetor or brake parts cleaner into the empty tank. Avoid aggressive solvents that may damage the fuel system components. This initial rinse helps break down and flush out stubborn varnish deposits from the tank walls. Use a clean nylon brush dipped in the cleaner to gently scrub the tank's interior and remove clinging debris.
Rinse the filter in cleaner and replace it if it is still clogged to ensure proper fuel flow. Reinstall the fuel line, gaskets, and filters as needed. Ensure the tank is completely dry before refilling it with fuel.
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Dry the tank
Drying your chainsaw's fuel tank is an important step in maintaining your tool. If your chainsaw is going into storage, it is crucial to drain the fuel tank. Over time, dust particles can enter the fuel tank and mix with the fuel, blocking the fuel lines and carburetor. This can cause serious issues, including clogging and reduced performance.
To dry your chainsaw's fuel tank effectively, start by removing the fuel tank lid. This step can be challenging, so consider using a lubricant like WD-40 to loosen the nuts. Remember to work in a well-ventilated area. Once the lid is removed, use a siphon to drain the fuel. Place the straight portion of the siphon into the fuel tank and insert the drainage hose into a suitable container for storing fuel. Work the siphon's hand pump or squeeze its bulb until all the fuel is removed.
After draining the fuel, pay attention to the fuel lines and carburetor. Remove any remaining fuel from these components to prevent contamination. You may need to disconnect the fuel lines and pour out any residual fuel. Be careful during this process, as a small amount of fuel may remain in the lines. If you have a plastic guard and small clamp, you will need to remove them to access and disconnect the lines. A screwdriver and wrench will come in handy for this step.
Before storing your chainsaw, ensure that the fuel tank and other components are completely dry. You can use a clean, absorbent cloth to wipe down the tank and remove any remaining moisture or residue. Additionally, inspect the fuel tank for any damage, such as tiny holes or hairline cracks. If you notice any issues, there are products available that can coat the inside of the tank and seal these minor flaws.
By following these steps, you can effectively dry and prepare your chainsaw's fuel tank for storage. Remember to perform this maintenance regularly to ensure the optimal performance and longevity of your chainsaw.
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Reassemble the tank
Before reassembling the tank, ensure that it is completely dry. Check for any damage to the fuel lines and the tank. If there is any damage, the fuel lines and the tank may need to be replaced.
If you have disassembled the carburetor, now is the time to reassemble it. Refer to the notes and photos you took prior to disassembling it. Install new gaskets if the old ones are cracked or damaged. If you have drained the fuel for storage, do not refill the tank. If you are going to use the chainsaw immediately, reconnect the fuel lines and add fuel.
If you have cleaned the tank with a detergent or water, it is important to ensure that all water is removed from the fuel lines before refilling the tank. Hold the fuel line and pour any remaining gas into the gas can. If you are reconnecting the fuel lines, you will need a screwdriver and a wrench. Be careful when reconnecting the fuel lines, as they are delicate and can be easily damaged.
If you have used a fuel stabilizer to clean the tank, simply turn off the chainsaw after running it for a few minutes.
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Store the chainsaw
To store your chainsaw, you should first drain the fuel tank in a well-ventilated area. You can use a siphon or a funnel to ensure that you drain all the fuel. You might need to run the chainsaw for a little while to use up the last of the fuel. This is called 'running it dry'. The chainsaw should be left running until it starts to splutter, indicating that the fuel is running out.
Next, remove the chain from the guide bar and drive assembly. Clean out any dirt, wood chips, and grime from the chain and bar. Clean the whole chainsaw, especially the cylinder ribs and air filter. You can also use fogging oil and spray it on the inside of the air filter for about 30 seconds to clean it out and provide a protective layer.
After cleaning, store your chainsaw in a dry, secure location, out of direct sunlight, and well out of the reach of children. It is also recommended to use a carry bag or case to protect the chainsaw from dust while in storage.
If you plan to store the chainsaw for an extended period, you should consider using a fuel stabiliser. Fuel stabiliser can protect the chainsaw when you drain it, and it can also be added to the fuel to prevent the formation of gum deposits. However, for long-term storage beyond two years, you will need to drain and clean the chainsaw fuel tank.
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Frequently asked questions
It is recommended to drain and clean your chainsaw's fuel tank if it will remain unused for over three months. First, siphon out the fuel by placing one hose in the fuel tank and the other in a container. Then, Unhook the fuel line. Next, rinse the tank with carburetor cleaner and scrub the inside with a clean nylon brush. Finally, let the tank dry fully before reassembling.
If you accidentally put oil in your chainsaw's fuel tank, you should empty out the oil and fill the tank with straight gasoline. Then, run the chainsaw to burn off the excess oil.
It is recommended to clean your chainsaw's fuel tank annually, especially if you are using a fuel stabilizer. However, you should also clean it immediately if you notice any issues, such as starting problems or decreased performance.
A clean fuel system is essential for optimal performance and longevity. Over time, debris, residue, and gunk can build up in the fuel tank, lines, and carburetor, leading to issues such as difficult starting, loss of power, and increased emissions. Regular cleaning can help prevent these problems.
