Removing Ultra Classic Fuel Tank: A Step-By-Step Guide

how to remove ultra classic fuel tank

Removing the fuel tank from a vehicle can be a complex process and is often done for maintenance or repair work. The process can vary depending on the vehicle in question, but there are some general guidelines that can be followed. For example, it is important to disconnect the battery and ensure that the fuel tank is drained or clamped to prevent spills. Additionally, removing the boot lid and fuel cap, as well as disconnecting hoses and wires, are often necessary steps in the process.

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Remove the battery

To remove the battery, first disconnect the negative terminal and make sure to cover the battery properly to prevent anything from falling on it. Ideally, you should remove the battery entirely. If you are unable to do so, at least ensure that it is disconnected and well-protected.

Next, you'll need to address the fuel hose. Clamp the hose and remove it from the line under the car, being careful to catch any spilled fuel in a container. Place the container underneath the car to collect the drained fuel.

Now, you can focus on the boot area. Remove the boot lid by unscrewing the four nuts on the hinges and the two screws for the straps on the boot lid. Additionally, detach the boot lamp connectors located near the bolt for the fuel tank strap. With the boot lid removed, you'll have better access to the fuel tank and can proceed with its removal.

By following these steps, you can safely remove the battery and prepare for the next steps in the fuel tank removal process. Remember to take appropriate precautions when handling fuel and batteries to ensure a safe and successful procedure.

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Disconnect the fuel sender wire

Disconnecting the fuel sender wire is an important step in removing the fuel tank on a motorcycle. Here is a detailed guide on how to do it safely and effectively:

Locate the Fuel Sender Wire: Begin by locating the fuel sender wire, which is usually connected to the fuel tank. It is often colour-coded or labelled for easy identification.

Access the Wire Connector: Before you disconnect the wire, you may need to remove any covers or panels that are blocking access to the wire connector. This will provide you with enough space and access to work comfortably.

Prepare the Work Area: To catch any spilled fuel, place a shop towel or a piece of cloth underneath the connector. This is important as disconnecting the fuel sender wire may result in some fuel leakage.

Separate the Connector: Once the connector is released, gently pull it apart to separate it from the fuel sender wire. Be slow and gentle during this process to avoid any damage.

Store the Connector Safely: After the connector is removed, set it aside in a safe place to ensure it does not get misplaced or damaged.

It is important to refer to the service manual for your specific motorcycle model, as the process may vary slightly. Additionally, always exercise caution when working with fuel systems to prevent any safety hazards.

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Release the strap and remove the fuel cap

To remove the fuel tank, you must first release the strap. This involves removing the bolt on the tank strap, near the boot lid. There are two screws for the straps on the boot lid. Once the strap is loose, remove the fuel cap. It is important to note that you should remove the sender wiring and vent lines before proceeding.

After releasing the strap and removing the fuel cap, you can then pull the tank through into the boot. Place the fuel cap back on immediately to avoid any spills. Be cautious when lifting the tank out of the boot, as tilting it too far can cause fuel to spill through the vent.

It is recommended to disconnect and remove the battery before attempting to remove the fuel tank. This helps ensure safety and prevents any potential issues. Additionally, removing the boot lid first can make the process easier, as you won't have to work around it. The boot lid can be removed by unscrewing the four nuts on the hinges.

By following these steps, you can safely and effectively release the strap and remove the fuel cap when preparing to detach the fuel tank. Remember to always take the necessary precautions to avoid any fuel spills or accidents during the process.

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Remove tank bolts

To remove the tank bolts, first release the strap and take off the fuel cap. Next, remove the bolt on the tank strap that's towards the boot lid. Now, pull off the two connectors from the sender. With the fuel cap removed, you can then take out the tank from the boot.

It is recommended to first remove the boot lid by unscrewing the four nuts on the hinges, the two screws for the straps on the boot lid, and the boot lamp connectors by the bolt for the fuel tank strap. This makes the process easier.

Additionally, it is important to disconnect and remove the battery or at least disconnect the negative terminal and ensure it is covered to prevent any accidents. You can then clamp the hose and disconnect the hose from the line under the car, catching any spilled fuel in a container.

There are two tank bolts in the frame near the neck and one on the back of the tank on the frame that need to be removed. There are also two Allen head bolts under the fuel door near the front and another on the back of the console.

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Lift the tank out

To lift the tank out, first, remove the fuel cap. If you are working on a Mini, pull the tank through into the boot and put the cap back on. Be careful not to tip the tank too far, or it will spill fuel through the vent. If you are working on a Harley Davidson, you will need to unplug the fuel sender wire and the fuel overflow hose. Then, lift the console.

Next, you will need to remove the battery. Disconnect the negative and make sure the battery is covered so that nothing falls on it. Ideally, remove it. Now, clamp the hose and remove the hose from the line under the vehicle. Catch any spilled fuel in a container.

Now, you can lift the tank out. Be careful not to tip the tank and spill fuel. If you are working on a Mini, it is recommended to jack up and support the rear of the vehicle on axle stands on the rear subframe before lifting the tank out.

Frequently asked questions

First, remove the battery or at least disconnect the negative and make sure the battery is covered so that nothing falls on it. Remove the boot lid, the four nuts on the hinges, and the two screws for the straps on the boot lid. Remove the fuel cap and pull the tank through into the boot.

Lift the tank out of the boot carefully, ensuring that you don't tip it too far or it will spill fuel through the vent.

Disconnect the sender wiring and vent lines. You should also disconnect the fuel sender wire and the fuel overflow hose.

If it is an injection tank, be very careful with the fuel filter unions as they are NLA.

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