Replacing The Fuel Line On Your Toro Weed Eater

If you're looking to replace the fuel line on your Toro weed eater, there are a few options available to you. You can purchase a replacement fuel line from various online retailers, such as Amazon and eBay. When purchasing a replacement fuel line, it is important to ensure that it is compatible with your specific Toro weed eater model. For example, the Eopzol Replacement 570373002 Fuel Line is designed for the Toro 51944 and 51977 string trimmer models. Additionally, you may find it useful to refer to the Toro String Trimmer Manual for guidance on replacing the fuel line.

Primer bulb replacement

To replace the primer bulb on your Toro weed eater, you will need to purchase a replacement primer bulb that is compatible with your model. You can find these at hardware stores or online.

• Ensure that the weed eater is switched off and cooled down before beginning any maintenance work.
• Locate the primer bulb. It is usually found at the base of the weed eater, connected to the fuel line.
• Using a small screwdriver, carefully pry off the old primer bulb from its housing. Be gentle to avoid damaging the surrounding components.
• Clean the housing area to remove any dirt, debris, or residue. This will ensure a proper seal for the new primer bulb.
• Take your new primer bulb and lubricate the rubber edges with a small amount of engine oil. This will help create a tight seal and make it easier to press the bulb when installed.
• Firmly press the new primer bulb into its housing, ensuring it is securely seated.
• Reattach any components that you had to remove to access the primer bulb housing.
• Check the fuel lines for any leaks. If necessary, replace the fuel lines with new ones, ensuring they are securely connected to the primer bulb and other components.
• Once everything is reassembled, start the weed eater and test the new primer bulb. Ensure that it is drawing fuel and that there are no leaks.

It is important to consult your weed eater's user manual for model-specific instructions and safety precautions. Always exercise caution when performing any maintenance work on power equipment.

Carburetor fuel line connections

Understanding the Fuel Lines

Before you begin, it's crucial to know that your weed eater likely has two fuel lines: a thick line and a thin line. The thin line is the fuel feed, while the thick line is the fuel return or breather line. These lines connect the fuel tank, the carburetor, and the primer bulb, ensuring a consistent flow of fuel to the engine.

Disconnecting and Removing Old Fuel Lines

• Start by draining any excess fuel from the tank. This is a safety precaution to avoid spills.
• Use long-nosed pliers to carefully disconnect the fuel lines from the carburetor. Take note of how the lines are routed and which ports they are connected to.
• Cut the fuel lines flush with the fuel tank using wire cutters. Be careful not to damage the tank.
• Use a small screwdriver to gently push the remaining portions of the fuel lines into the fuel tank. This will help with their removal.
• Remove the fuel cap and use long-nosed pliers or a long wire hook to retrieve the lower halves of the fuel lines from inside the tank. One of these lines will have the fuel filter attached.

Installing New Fuel Lines

• Determine which size fuel lines you need. Your weed eater may have come with a fuel line kit containing different sizes.
• Insert the tapered end of the new fuel line (filtered line) into one of the openings on the top of the fuel tank. Feed approximately 6 inches of the line into the tank.
• Use a wire hook to retrieve the fuel line from inside the tank through the filler neck. This step may require some patience and maneuvering.
• Cut away the tapered portion of the fuel line using wire cutters. Ensure you don't cut too close to the tank opening.
• Install the fuel filter onto the end of the new line. This is an important step to prevent debris from entering the carburetor.
• Feed the fuel filter and line back into the fuel tank, using the wire hook to position the filter at the rear of the tank. This ensures the filter can draw fuel effectively.
• Place the fuel line in its approximate position on the carburetor, then trim the excess line slightly longer than needed. You can fine-tune the length later.
• Repeat the process for the return fuel line, feeding approximately 2 inches into the tank and trimming the excess.

Connecting the Fuel Lines to the Carburetor

• Place your finger over one of the ports on the carburetor and prime the purge bulb. You will feel a suction or blowing sensation on your finger.
• Identify the intake (incoming) port, which will draw your finger towards it when priming. The outgoing port will push your finger away.
• Fine-tune the length of the fuel lines as needed. Ensure they are slightly longer than necessary to allow for adjustments.
• Connect the fuel line with the fuel filter to the incoming port on the carburetor. This is the fuel feed line.
• Connect the return fuel line (without the fuel filter) to the outgoing port on the carburetor.

Final Reassembly

• Reinstall the fuel cap onto the fuel tank. Ensure it is securely tightened.
• Double-check all connections and ensure there are no leaks.
• Refill the fuel tank with fresh fuel.
• Start the weed eater and observe it for any leaks or issues.

By following these steps, you can ensure that your weed eater's carburetor fuel lines are properly connected and maintained. Remember to exercise caution when working with fuel, and always refer to your specific model's instructions for additional guidance.

Fuel line routing

To replace the fuel line on a Toro weed eater, you will need to purchase a replacement fuel line. You can find these for sale on Amazon and eBay. The fuel line routing will depend on the model of your Toro weed eater.

For example, for the Toro 51944 and 51977 string trimmer models, the fuel line can be replaced with the Eopzol 570373002 Fuel Line, which comes in a pack of two.

For the Toro 51978, 51974, 51944, 51976, 51954, 51984, 51975, 51945, 51972, 51946, 51992, 51952, and 51955 models, you can purchase the Powtol 560873001 Air Filter Fuel Hose.

Another option is the Panari Fuel Line Assembly with Primer Bulb, which is compatible with many Toro models, including the 51944, 51945, 51955, 51974, 51975, 51952, 51955, 51956, 51957, 51970, 51972, 51973, 51974, 51976, and 51977.

Additionally, the Hipa Trimmer Chainsaw Fuel Line Hose Tube is suitable for various brands, including Toro, and offers four sizes per two feet.

• The clear main fuel line with the filter (filter inside the fuel tank) goes to the bottom of the carburetor (or the elbow-shaped nipple).
• The clear fuel intake line runs from the top of the carburetor (straight nipple) and connects to the short post on the back of the primer bulb.
• The return line (usually blue) comes from the long post on the back of the primer bulb and goes into the bottom of the fuel tank.

Fuel filter replacement

To replace the fuel filter in your Toro weed eater, you will first need to purchase a replacement fuel filter. You can find these at hardware stores or online. Once you have the new fuel filter, follow these steps:

Locate the fuel filter: The fuel filter on your Toro weed eater is likely located along the fuel line, which is the tubing that connects the fuel tank to the engine. It may be a small, cylindrical component with a fine mesh screen inside.

Turn off the engine and disconnect the spark plug: Before beginning any work on your weed eater, it is important to ensure that the engine is off and the spark plug is disconnected to prevent accidental starting.

Drain the fuel tank: To avoid fuel spillage, drain the fuel tank by running the engine until it stops. Alternatively, you can siphon the fuel into a safe container.

Disconnect the fuel line: Using a pair of pliers or a line wrench, carefully disconnect the fuel line from the fuel tank and the engine. Take note of how the fuel line is routed so you can reinstall it properly.

Remove the old fuel filter: Gently pull or use a line wrench to remove the old fuel filter from the fuel line. Take note of its orientation and any clips or clamps holding it in place.

Install the new fuel filter: Insert the new fuel filter into the fuel line, ensuring it is oriented in the same direction as the old one. Secure it in place with any necessary clips or clamps.

Reconnect the fuel line: Reattach the fuel line to the fuel tank and the engine, following the original routing. Ensure all connections are tight and secure.

Refill the fuel tank: Once the fuel line and filter are securely connected, refill the fuel tank with fresh fuel.

Reconnect the spark plug: Reconnect the spark plug wire to the spark plug, ensuring it is securely attached.

Test the weed eater: Start the engine and let it run for a few minutes to ensure the new fuel filter is working properly and there are no leaks.

By following these steps, you can replace the fuel filter in your Toro weed eater, ensuring proper fuel flow and engine performance. Remember to refer to your owner's manual or seek assistance from a qualified technician if you have any questions or concerns during the replacement process.

Fuel line size

The fuel line size for your Toro weed eater depends on the model. The fuel line size is usually described in inches or millimetres.

For example, the fuel line size for the Toro 51954, 51984, 51985, 51986, 51987, 51988, 51936, 51938, 51940, 51944, 51945, 51946, 51947, 51948, 51950, 51974, 51975, 51976, 51977, and 51978 models is 3/32" x 3/16" or 0.080" x 0.140" (2.5mm x 5mm).

Another example is the Toro 51930, 51930A, 51932, 51932A, 51934, 51934A, 51936, 51938, 51940, 51950, 51950A, 51970, 51970A, 51973, 51990, 51990A, 51993, and 51954 models, which have a fuel line size of 1/8" x 1/4" or 3mm x 6mm.

Additionally, the Toro 51978, 51974, 51944, 51976, 51954, 51984, 51975, 51945, 51972, 51946, 51992, 51952, and 51955 models use a fuel line with dimensions of 0.065 inches in diameter.

You can also purchase a Toro Genuine OEM Replacement Fuel Line - 570373002 from eBay.

Frequently asked questions