Rajan Wilcox
Chainsaw fuel lines are typically made of clear plastic and are responsible for carrying fuel from the tank to the carburetor. Over time, these fuel lines can clog, crimp, or crack, restricting fuel flow and preventing the engine from starting. When replacing the fuel lines, it is important to cut the new tubes to the proper length and angle to ensure a smooth fit. Some people also recommend lubricating the tubes with WD-40 or oil to ease the insertion process. Additionally, needle-nose pliers can be used to carefully pull the fuel lines out of the gas tank without causing damage.
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What You'll Learn
- Chainsaw fuel lines are usually clear plastic tubing
- Chainsaw fuel lines have two tubes: one that feeds fuel into the carburetor and another that allows unused fuel to flow back into the tank
- To remove the fuel lines, use needle-nose pliers to pull the tubes from the carburetor and the tank
- Cut the new tubes to the same length as the original tubing to ensure a proper fit
- Lubricate the fuel lines to ease threading
Chainsaw fuel lines are usually clear plastic tubing
Most chainsaws have two fuel lines: one that feeds fuel into the carburetor and a return tube that allows unused fuel to flow back into the chainsaw gas tank. The return tube may be slightly larger in diameter than the tube that feeds the fuel, or both tubes may be the same size. Both tubes flow from the fuel tank and connect to metal tubes that protrude from the carburetor.
When replacing the chainsaw fuel lines, cut the new tubes to the proper length. The Stihl "string trick" is a classic method for installing fuel lines. First, lubricate the new line with WD-40, then put the filter on. Next, push a long standard-width ty-wrap from the carburetor area, down into the tank, and out of the gas cap hole. Finally, push the end of the fuel line over the ty-wrap end and use it as a "fish tape" to pull it up through the tank opening.
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Chainsaw fuel lines have two tubes: one that feeds fuel into the carburetor and another that allows unused fuel to flow back into the tank
Chainsaw fuel lines are typically made of clear plastic. Most chainsaws have two fuel lines: one that feeds fuel into the carburetor, and another that allows unused fuel to flow back into the tank. The latter is known as the return tube, and it may be slightly larger in diameter than the tube that feeds the fuel, or it may be the same size. Both tubes flow from the fuel tank and connect to metal tubes that protrude from the carburetor.
When it's time to replace the fuel lines in your chainsaw, you will need to reinsert the tubes back into the tank before you can use the chainsaw again. This can be a straightforward task, but it can also be tricky. It is important to have the proper tools and know-how. You will need to cut the new tubes to the proper length. You can use needle-nose pliers to remove the tubes from the carburetor and pull them from the tank. When you remove the fuel line that feeds fuel to the carburetor, the small cylindrical fuel filter will pop off the tube. Hold the lengths of the original tubing against the replacement tubing and cut the new tubes to the same length to ensure a proper fit.
When inserting the new tubes, you may find it difficult to feed the new plastic tubing into the plastic tank. To aid in ease of entry, spray a small amount of lubricant onto the tube before insertion. Cut the tip of the fuel line that fits into the tank on a diagonal angle. This allows the fuel to feed into the tube more easily and also helps with insertion.
To replace the fuel lines, first, empty the fuel tank into an approved storage container. Then, remove the screws from the primer bulb to detach the fuel lines. Pull the fuel lines off of the carburetor and the primer bulb. Cut the new fuel lines at an angle to thread them into the tank. Push the large line about one inch into the tank. Push the small line far into the tank so that it can be grabbed through the mouth of the tank with needle-nose pliers. Pull the small line out of the mouth of the tank. Cut the end square and install the fuel filter. Pull the line back in so the filter rests on the bottom of the tank. Trim the fuel lines and connect them to the carburetor.
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To remove the fuel lines, use needle-nose pliers to pull the tubes from the carburetor and the tank
To remove the fuel lines from a chainsaw, you will need needle-nose pliers. This is a straightforward task, but it can be tricky, so it is important to have the proper tools and know-how. Chainsaw fuel lines are usually clear plastic tubing, and most chainsaws have two fuel lines. One feeds fuel into the carburetor, and the other is a return tube that allows unused fuel to flow back into the tank.
When removing the fuel lines, you will need to pay attention to the small cylindrical fuel filter. As you remove the line that feeds fuel to the carburetor, this filter will pop off. You can then use the pliers to pull the tubes from the carburetor and the tank. With some models, you will need to remove screws from the primer bulb to detach the lines.
Before you begin, make sure you are wearing safety equipment, including gloves, to protect your hands. You should also work in a well-ventilated area. Once you have removed the fuel cap and emptied the tank, you can use the pliers to pull the lines out of the tank. You may need to use a screwdriver to detach the lines from the carburetor and primer bulb.
If the fuel lines are difficult to remove, you can use a small amount of lubricant to aid in their extraction. You can also try padding the jaws of the pliers with rubber to prevent any damage to the fuel lines.
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Cut the new tubes to the same length as the original tubing to ensure a proper fit
When replacing the fuel lines on your chainsaw, it is important to cut the new tubes to the proper length. Chainsaw fuel lines are typically made of clear plastic tubing. Over time, they can clog, crimp, or crack, restricting fuel flow and preventing the engine from starting.
To ensure a proper fit, hold the lengths of the original tubing against the replacement tubing and cut the new tubes to the same length. You can use scissors or a razor to make the cut. Cut the tip of the fuel line that fits into the tank on a diagonal angle to allow fuel to feed into the tube more easily and aid in insertion. Alternatively, you can slice the tubing in half for the first inch and put a taper where it finally goes wide.
Once you have cut the new tubes to the correct length, you can proceed with inserting them into the tank. This process can be tricky, so it is recommended to use a small amount of lubricant on the tubes before insertion. You can also try the "string trick" by pushing a long standard width tie-wrap from the carburetor area, down into the tank, and out the gas cap hole. Put the end of the fuel line over the tie-wrap end and use it to pull it up through the tank opening.
After inserting the new tubes, push the large line about one inch into the tank. Then, push the small line into the tank and grab it through the mouth of the tank with needle-nose pliers. Pull the small line out, cut the end square, and install the fuel filter. Finally, pull the line back so that the filter rests at the bottom of the tank, trim the fuel lines, and connect them to the carburetor.
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Lubricate the fuel lines to ease threading
Chainsaw fuel lines can become clogged, crimped, or cracked over time. This can restrict fuel flow and prevent the engine from starting. If your chainsaw won't start, check the fuel lines for damage and replace them if necessary.
Most chainsaws have two fuel lines: one that feeds fuel into the carburetor, and a return tube that allows unused fuel to flow back into the tank. These tubes are typically made of clear plastic, and they can be tricky to insert or reinsert into the tank.
To ease the process of threading the fuel lines, it is recommended to lubricate them with a small amount of oil or lubricant. This will aid in their smooth passage into the tank.
- Choose the right lubricant: A drop of oil or a spray lubricant can be used to ease threading. Some people prefer using WD-40 as a lubricant.
- Cut the fuel lines at an angle: Before inserting the fuel lines, cut the tips of the lines that fit into the tank on a diagonal or 45-degree angle. This helps with insertion and allows fuel to feed into the tube more easily.
- Use a "string trick": One trick to ease threading is to use a piece of wire or a ballpoint pen spring. Fold the wire in half and crimp it down on the last 1/8-1/4" of the oiled fuel line. Alternatively, stretch the pen spring over the fuel line and twist it in like a screw.
- Push and pull technique: Push a ty-wrap or a similar tool from the carburetor area down into the tank and out through the gas cap hole. Then, push the end of the fuel line over the ty-wrap and use it to pull the fuel line up through the tank opening.
- Use needle-nose pliers: If the fuel lines need to be removed, use needle-nose pliers to carefully pull them out of the tank and carburetor. When inserting new lines, cutting them to the proper length is crucial for a good fit.
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Frequently asked questions
Chainsaw fuel lines are typically clear plastic tubing. Most chainsaws have two fuel lines – one that feeds fuel into the carburetor and a return tube that allows unused fuel to flow back into the chainsaw gas tank. When inserting a new fuel line, cut the tip of the fuel line that fits into the tank on a diagonal angle to allow the fuel to feed into the tube more easily and also help with insertion. Lubricate the tube before insertion to aid in ease of entry.
You will need needle-nose pliers to remove the tubes from the carburetor and pull them from the tank. You will also need scissors to cut the new fuel lines at an angle to thread them into the tank.
Use needle-nose pliers to pull the fuel lines out of the gas tank. Depending on the model, you may have to remove the screws from the primer bulb to detach the fuel lines.
The fuel lines in a chainsaw can clog, crimp, or crack over time. Damaged fuel lines restrict fuel flow and prevent the engine from starting. Chainsaw fuel lines become brittle over time and can crack.
