How To Change Your Harley's Fuel Tank

Harley-Davidson motorcycles are renowned for their powerful engines and iconic designs, but even these mighty machines require maintenance and upgrades from time to time. One such component that may need attention is the fuel tank. Whether it's due to a leak, a desire for a new colour, or simply an upgrade to enhance performance, replacing the fuel tank on a Harley-Davidson is a significant task that any owner can tackle with the right tools and knowledge.

Replacing the tins on a Softail Heritage Classic with those from an EFI Fatboy

It is possible to replace the tins on a Softail Heritage Classic with those from an EFI Fatboy. However, there are some differences between the two models that may require modifications or adjustments during the replacement process.

One of the main differences is the location of the mount for the speedometer console (dash). The Softail Heritage Classic has the 'cat's eye' console, while the EFI Fatboy has a more traditional, squared-off design. The hole for the acorn nut is located about half an inch further forward on the Fatboy, which may require swapping the tank covers or adding a bracket to the tank cover to accommodate the speedometer console.

Another consideration is the fuel pump assembly and internal components of the fuel tanks. The original poster, Jimbo601, encountered an issue where the fuel pump assembly and internal parts of the tanks were completely different between the two models, which initially seemed to prevent a simple swap of the tank covers. However, they later found a potential solution in another forum post, indicating that it may be possible to make the necessary modifications to complete the swap.

It is recommended to consult with experienced mechanics or Harley-Davidson enthusiasts on forums or seek professional assistance when attempting such modifications to ensure a successful and safe outcome.

Additionally, when considering swapping parts between different models, it is important to take into account the age and specific year of the bikes. While the Softail and Fatboy are both FLST series bikes with similar base structures, differences in wheel bearing types and sizes, spacers, and axle sizes may require adjustments or part swaps to ensure compatibility.

The speedometer console mount is in a different spot on the Fatboy than on the Heritage

The Harley-Davidson Fat Boy and Heritage Classic motorcycles have distinct speedometer console mount locations. The Fat Boy features a more traditional, squared-off speedometer console, while the Heritage Classic sports the 'cat's eye' console. The difference in design results in a variation in the placement of the acorn nut hole, with the Fat Boy's hole positioned about half an inch further forward compared to the Heritage.

This variation in the speedometer console mount location can present a challenge when considering a fuel tank swap between the two models. While the tanks' internal components may appear identical, the distinct console mount positions will require some creativity to ensure a seamless fit. One possible solution is to swap the tank covers, as the bolt and mount are located on the tank cover. This approach can provide a quick fix, especially if you prefer the aesthetic of the 'cat's eye' console.

However, it's important to note that attempting to simply swap the tank covers may not always be a viable option. In some cases, the fuel pump assembly and other internal components of the tanks may differ significantly, necessitating additional modifications or the procurement of an OEM instrument console. This underscores the importance of carefully examining the specifics of your motorcycle model before proceeding with any modifications.

If you're considering a fuel tank swap between the Fat Boy and Heritage Classic, it's advisable to consult with experienced Harley-Davidson enthusiasts or professionals. They can provide valuable insights and guidance to ensure that your desired modifications are feasible and executed correctly. Online forums and resources, such as the Harley-Davidson Forums, can also offer a wealth of information and advice from fellow riders who may have encountered similar challenges.

The hole for the acorn nut is further forward on the Fatboy

When it comes to Harley-Davidson motorcycles, the process of changing the fuel tank can vary depending on the specific model and the modifications involved. In the case of a user named Jimbo601 on the Harley-Davidson Forums, they encountered a unique challenge when attempting to replace the tins on their 2009 Softail Heritage Classic with those from a 2006 EFI Fatboy.

Jimbo601 noticed a distinct difference in the mounting location of the speedometer console (also known as the dash) between the two models. Specifically, the hole for the acorn nut on the Fatboy was approximately half an inch further forward compared to the same feature on the Heritage. This discrepancy presented a potential issue when considering the swap of the tank covers, which is where the bolt and mount are located.

The user sought advice from other forum members, questioning if there were any reasons not to proceed with the tank cover swap. One responder affirmed that the "Catseye" style of the speedometer console was indeed more traditional, contrary to Jimbo601's initial impression. Encouraged by this feedback, Jimbo601 leaned towards proceeding with the tank cover swap.

However, upon further inspection, Jimbo601 discovered a more significant challenge. They found that the fuel pump assembly and other internal components of the tanks were entirely different between the two models. This meant that a simple tank cover swap was not feasible without additional modifications or finding an OEM instrument console.

In conclusion, while the forward position of the hole for the acorn nut on the Fatboy presented an initial concern, it was the internal differences between the fuel tanks that ultimately posed the more significant challenge in this Harley-Davidson fuel tank swap scenario.

Swapping the tank covers is quick and easy

Swapping the tank covers on your Harley-Davidson is a quick and easy process. It can be a great way to change up the look of your bike and is a fairly straightforward modification.

First, you'll want to make sure you have the correct tools and a suitable workspace. The process will involve removing the existing tank cover and replacing it with the new one, so having a basic understanding of the bike's mechanics is helpful.

Next, carefully remove the old tank cover. This will involve unscrewing any bolts or fasteners that hold the cover in place. Be sure to keep track of the hardware as you remove it, so you can reuse it when installing the new cover. Once the old cover is removed, you may want to clean the area and inspect for any damage or issues.

Now you're ready to install the new tank cover. Line up the holes and attach the new cover using the bolts or fasteners removed earlier. Ensure everything is secure and tightened appropriately.

Finally, take a step back and admire your work! Swapping the tank cover can give your Harley a fresh new look, and it's a simple process that can be completed in a short amount of time. You can find a range of tank covers for various Harley-Davidson models, including the Sportster, Softail, and Touring bikes, as well as tank consoles and other accessories to further customise your ride.

The fuel pump assembly and everything else inside the tanks are different

Swapping a fuel tank on a Harley-Davidson motorcycle is not a straightforward process. While it may seem like a simple swap, there are a number of factors to consider, especially when it comes to the internal components of the tank.

In the case of swapping a 2009 Softail Heritage Classic with a 2006 EFI Fatboy, the original poster, Jimbo601, encountered an issue with the speedometer console mount. The Fatboy's mount is located in a different spot, which would require swapping the tank covers. However, upon further inspection, Jimbo601 discovered that the fuel pump assembly and other internal components of the tanks were completely different, which would make a simple tank cover swap impossible.

The fuel pump assembly plays a critical role in the fuel delivery system of a Harley-Davidson motorcycle. It includes the fuel pump, which draws fuel from the tank and delivers it to the engine, as well as other components such as the fuel filter and fuel lines. The assembly is designed to work specifically with the corresponding tank and fuel system, ensuring proper fuel flow and pressure.

When considering a fuel tank swap, it is important to thoroughly research and understand the differences in the fuel pump assembly and other internal components. While some Harley-Davidson models may have similar or compatible fuel systems, others may have significant differences that require custom modifications or the use of specific parts. In some cases, it may be necessary to consult a Harley-Davidson expert or mechanic to ensure that the swap is done correctly and safely.

In the case of Jimbo601's swap, the differences in the fuel pump assembly and internal tank components presented a significant challenge. However, with further research and consultation with other Harley-Davidson enthusiasts, it may be possible to devise a solution, such as adding a bracket to the tank cover to accommodate the different console mount.

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