Replacing Fuel Line On Troy Bilt Trimmer: Step-By-Step Guide

If you need to replace the fuel line on your Troy Bilt trimmer, you're not alone. Many people have asked the same question, and there are a variety of fuel line kits available on Amazon and eBay. You can also refer to the many online forums where people have shared their experiences and advice on replacing fuel lines on their Troy Bilt trimmers. Some people suggest replacing all the fuel lines, while others provide specific details on how the fuel lines should be connected. It's important to note that Troy Bilt uses specific fuel lines, so you can't use regular tygon fuel lines. Additionally, when inserting a new fuel line into the gas tank, it's recommended to cut a steep angle on the end of the line to ensure it reaches far enough into the tank.

The fuel tank has two lines

To replace the fuel lines, first remove the spark plug wire from the spark plug and pour the gas from the string trimmer's fuel tank into a gas can. Use a pair of needle-nose pliers to disconnect the fuel lines from the carburetor. Remove the two screws on the gas tank and then remove the tank from the string trimmer. With the tank removed, slowly and carefully remove the two gas lines.

Purchase new fuel lines that are compatible with your model and insert them into the gas tank. Put the lines into the same holes from which you removed the damaged ones. Push the new lines through the small hole and out the large hole to the lid for the gas tank. You may need to use needle-nose pliers for this task. Reattach the gas tank and fuel lines to the carburetor, and then reattach the spark plug wire.

The line with the filter goes to the carburettor

The fuel line with the filter goes to the carburettor. This is the main fuel line, which is usually clear. It has a filter inside the fuel tank and goes to the bottom of the carburettor, or the elbow-shaped nipple. The other end of this line is in the bottom of the fuel tank.

The fuel intake line, which is also usually clear, runs from the top of the carburettor to the primer bulb.

The return line, which is usually blue, comes from the primer bulb and goes into the bottom of the fuel tank.

The other line is the return line

The fuel lines on your string trimmer are essential for its operation, but they can degrade over time and break. Both the small and large fuel lines can be replaced at home, even if you're not an expert. The small fuel line suctions gas into your carburettor from the gas tank, while the large fuel line, or return line, returns any excess or unused gas back into the gas tank. This is why it is sometimes referred to as the 'return line'.

If you are unsure about which line is the return line, it is the larger of the two lines. It is important to replace the fuel lines if they are damaged, as this can cause fuel to leak, which is a safety hazard. It is also a good idea to replace all the fuel lines at the same time, as they usually deteriorate at a similar rate. You can purchase new fuel lines at your local hardware store or online; just make sure they are compatible with your trimmer model.

To replace the fuel lines, first remove the spark plug wire from the spark plug and pour the gas from the string trimmer's fuel tank into a gas can. Use a pair of needle-nose pliers to remove the fuel lines from the carburettor, and then remove the gas tank from the trimmer. Slowly and carefully remove the old fuel lines from the gas tank, and then insert the new lines into the same holes. Reattach the gas tank and fuel lines to the carburettor, and then reattach the spark plug wire.

Now that you have replaced the fuel lines, it is important to test your trimmer to make sure it is working properly. Always wear protective clothing, including long pants, long sleeves, and closed-toe shoes when using a string trimmer. If your trimmer is not working properly, it may be time to ask an expert for help or consider purchasing a new trimmer.

The return line goes through the primer valve

The primer bulb on a Troy Bilt trimmer is used to prime the carburettor with fuel when the trimmer is started from cold. The primer bulb is connected to the fuel tank and carburettor by a series of fuel lines. The return line is the fuel line that runs from the primer bulb back to the fuel tank. This line is usually the longest port on the primer bulb and is often green in colour. It is important to ensure that the return line is not submerged in fuel when priming the carburettor. This can be achieved by ensuring that the line sits around 1/4" to 1" below the fuel cap hole inside the tank.

The return line is thicker than the fuel feed line, which is the thin line that connects the fuel filter inside the tank to the bottom connector on the carburettor. The fuel feed line then connects to the primer bulb, before returning to the fuel tank. The fuel feed line should be able to "flop around inside the tank" with the movement of the trimmer, allowing it to find the fuel when the trimmer is twisted and turned during use.

The top line goes to the carburettor

To replace the fuel line on a Troy Bilt trimmer, you'll need to understand the routing of the fuel lines. The trimmer has a 3-port primer bulb, which never has a choke. The additional port is used to inject a small portion of fuel directly into the carburettor. The top line goes to the carburettor.

The fuel tank has two lines. The first is the pick-up line, which has a fuel filter inside the tank and goes to the bottom of the carburettor or the elbow-shaped nipple. The second line is the return line, which goes through the prime valve on the bottom and the top line goes through the top line tube in the carburettor.

The small diameter line out of the fuel tank (with a filter on the end) connects directly to the side of the carburettor that has the fuel pump. The other larger diameter fuel line out of the tank connects to the longer nipple on the external purge/primer bulb. The remaining larger diameter fuel line goes from the metering chamber (covered with writing and a vent hole) side of the carburettor to the smaller nipple on the purge/primer bulb.

The correct routing of the fuel lines is important to ensure the trimmer functions properly.

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