Replacing Fuel Line On Troy Bilt Weed Eater

If you're looking to replace the fuel line on your Troy Bilt weed eater, you've come to the right place. This process can be tricky, and repair places often don't want to tell you how to do it. Luckily, there are some helpful online resources that can guide you through the process. It's important to identify the model of your weed eater, as different models may have different fuel line setups. Some common models include the TB675 EC, TB575CS, TB425cs, and TB525EC. Once you've identified your model, you can search for specific instructions or diagrams for routing the fuel lines. You can also purchase fuel line kits and replacement parts online or from authorized resellers. With the right tools and knowledge, you'll be able to get your weed eater running like new again.

Where the green and clear lines go into the tank

When replacing the fuel lines on a Troy Bilt weed eater, it is important to understand how the fuel lines work. The small fuel line suctions gas into the carburetor from the gas tank, while the large fuel line returns any excess or unused gas back into the gas tank.

The green and clear lines on a Troy Bilt weed eater are the fuel lines. The small diameter clear line with the filter inside the fuel tank connects directly to the carburetor. The green line is the return line and goes from the primer bulb back into the bottom of the fuel tank.

To replace the fuel lines, first, remove the spark plug wire from the spark plug and pour the gas from the tank into a gas can. Remove the two fuel lines from the carburetor, then locate and remove the two screws on the gas tank and remove it from the string trimmer. You can then slowly and carefully remove the two gas lines and replace them with new ones, ensuring they are compatible with your model. Insert the new lines into the same holes as the old ones, then reattach the gas tank and fuel lines to the carburetor and reattach the spark plug wire.

Always wear protective clothing, including long pants, long sleeves, and closed-toe shoes when using a string trimmer.

How to hook up the fuel lines

To hook up the fuel lines of a Troy Bilt weed eater, follow these steps:

Firstly, identify the three fuel lines. You should have a clear main fuel line with a filter, a clear fuel intake line, and a blue return line.

Now, for the connections. The clear main fuel line with the filter should be connected to the bottom of the carburettor, or the elbow-shaped nipple. The clear fuel intake line should run from the top of the carburettor (the straight nipple) and be connected to the short post on the back of the primer bulb. Finally, the return line (blue) should go from the long post on the back of the primer bulb to the bottom of the fuel tank.

If your primer bulb has three outlets, the additional port is to inject fuel directly into the carburettor. If your primer bulb has two outlets, one will go to the fuel tank, and the other to the carburettor.

It is important to ensure the fuel lines are connected correctly to maintain the proper functioning of your weed eater.

The correct routing of the fuel lines

The routing of the fuel lines on a Troy Bilt Weed Eater is important to understand before attempting to replace them. The fuel lines connect the primer bulb, the fuel tank, and the carburetor, ensuring the flow of fuel from the tank to the carburetor.

For a 3-port primer bulb, the first (clear) main fuel line with the filter inside the fuel tank goes to the bottom of the carburetor (elbow-shaped nipple). The second (clear) fuel intake line runs from the top of the carburetor (straight nipple) to the short post on the back of the primer bulb. The third return line (blue) comes from the long post on the back of the primer bulb and goes into the bottom of the fuel tank.

For a 2-port primer bulb, the small diameter line with the in-tank filter connects directly to the side of the carburetor with the fuel pump. The larger diameter fuel line from the tank connects to the longer nipple on the external purge/primer bulb. A line then runs from the shorter nipple on the primer bulb to the metering chamber side of the carburetor. Finally, the return line runs from the primer bulb back into the fuel tank.

It is important to note that the longer port on the primer bulb is always the output and should return to the tank. This pressurizes the tank and forces fuel through the filter to the carburetor.

How to identify the correct fuel line

To identify the correct fuel line for your Troy Bilt weed eater, you must first identify the model of your trimmer. This is because the fuel line setup may differ between models.

For example, the Troy Bilt TB675 EC is a 4-cycle straight shaft string trimmer that has three fuel lines. The first is a clear main fuel line with a filter inside the fuel tank that goes to the bottom of the carburettor. The second is another clear fuel intake line that runs from the top of the carburettor to the short post on the back of the primer bulb. The third is a blue return line that comes from the long post on the back of the primer bulb and goes into the bottom of the fuel tank.

Another model, the Troy Bilt TB575CS, has green and clear fuel lines that connect to the fuel tank.

To find the correct fuel line for your model, you can search online for a diagram or video tutorial that shows the fuel line setup for your specific model. You can also refer to the owner's manual for your trimmer, if you have access to it, as it may contain information about the fuel line setup and replacement process.

Once you have identified the correct fuel line, you can purchase a replacement from a local repair shop or an online retailer. It is recommended to buy a fuel line kit that includes both the small and large fuel lines, as well as any necessary filters and connectors.

When installing the new fuel lines, it is important to follow the correct procedure, which may vary depending on your model. Refer to your diagram, video tutorial, or owner's manual for specific instructions. In general, you will need to remove the old fuel lines, clean or replace any necessary parts, and then install the new fuel lines, ensuring that they are connected to the correct ports and tightened securely.

How to buy a new fuel line

To buy a new fuel line for your Troy Bilt weed eater, you can either purchase a fuel line kit or individual fuel lines.

Fuel Line Kit

The Troy-Bilt website offers a fuel line kit (490-240-0008) for small engines manufactured in 2011 and prior. The kit includes one 1/16" I.D. x 1/8" O.D. fuel line and one 3/32" I.D. x 3/16" O.D. fuel line. It is fuel and chemical resistant. The kit costs $9.99 and comes with free shipping for orders over $45.

Individual Fuel Lines

If you are looking for individual fuel lines, there are a few options available. You can purchase a fuel line grommet assembly for the Troy Bilt 4 cycle cs weed eater trimmer. This assembly is necessary for safety and is designed to keep your fuel type consistent. The website does not specify the cost of this assembly.

Another option is to purchase fuel lines from a local hardware store, such as Ace, as suggested by a user on iFixit.

When purchasing a new fuel line, it is important to consider the fuel type you will be using and the model of your Troy Bilt weed eater. Additionally, if you are unsure about the correct routing of the fuel lines, it is recommended to seek advice from a small engine repair specialist or refer to a diagram or video specific to your model.

Frequently asked questions