How to Change Transmission Fluid on Harley Davidson

Learn how to change the transmission fluid on your Harley Davidson and discover the secret to unlocking its true power and performance.

changing transmission fluid on harley

Are you tired of your Harley Davidson's transmission feeling sluggish and unresponsive? Well, fear not, because in this discussion, we will guide you through the process of changing the transmission fluid, bringing new life to your beloved bike.

With just a few simple steps, you'll be able to revitalize your ride and experience the smoothness and power you've been longing for.

So, without further ado, let's dive into the world of transmission fluid change and unlock the true potential of your Harley Davidson.

Key Takeaways

  • Gather the necessary tools and materials, including a drain pan, new o-ring, hex tool, and the recommended transmission fluid.
  • Drain the old transmission fluid by locating the drain plug, loosening the drain bolt, and removing the plug to allow the oil to drain completely.
  • Replace the transmission fluid filter by locating it on the bottom of the transmission case, removing the old filter, cleaning the mounting surface, and installing a new filter securely.
  • Refill the transmission with the appropriate amount of new fluid by gradually adding the specified gear oil through the fill plug, taking care to avoid overfilling. Test the transmission by starting the engine, shifting through gears, and checking for leaks around the drain plug, fill plug, and dipstick.

Gather Necessary Tools and Materials

To begin the process of changing the transmission fluid on your Harley Davidson, gather the necessary tools and materials. You'll need a drain pan to catch the old fluid and avoid making a mess. Make sure to have a new o-ring for the drain plug, as the old one may be worn out or damaged. Additionally, get a 3/8 hex for the fill plug, as this will be necessary for removing and replacing it.

When it comes to the transmission fluid itself, it's recommended to use Redline V-Twin Synthetic Gear Oil or your preferred transmission fluid. This will ensure optimal performance and protection for your Harley Davidson.

Lastly, it's important to have a torque wrench on hand for tightening the drain plug to the manufacturer's specifications. This will help prevent any leaks or damage caused by over-tightening.

Drain the Old Transmission Fluid

Begin by locating the drain plug on the right side of your bike. This plug is responsible for draining the old transmission fluid. It is essential to change the oil regularly to ensure the smooth operation of your Harley Davidson. To minimize mess, it is recommended to loosen the drain bolt before removing the fill cap. This way, the oil will flow easily into a pan that you should place beneath the bike to catch the draining fluid.

Once the old fluid has been drained, you can proceed to fill the transmission with fresh oil. To do this, identify the fill port, which is located on top of the transmission. Loosen the fill plug using a 3/8 hex tool. This will allow you to pour in the new oil, ensuring that it reaches the appropriate level. It is crucial to use the correct type and quantity of oil as specified in your owner's manual.

To help you visualize the process, here is a table summarizing the steps to drain the old transmission fluid:

Steps to Drain Old Transmission Fluid
Locate drain plug on the right side of the bike
Loosen drain bolt before removing fill cap
Place a pan beneath the bike to catch the draining oil
Remove the drain plug and allow the oil to drain completely

Changing the transmission fluid is an important maintenance task that will keep your Harley Davidson running smoothly. By following these steps and using the correct oil, you can ensure the longevity and performance of your bike.

Replace the Transmission Fluid Filter

You will need to locate the transmission fluid filter on the bottom of the transmission case in order to replace it. The filter is responsible for removing any impurities or contaminants from the transmission fluid, ensuring that it flows smoothly through the system.

To begin, make sure you have the necessary tools, including a torque wrench and a new filter. Start by removing the old filter and cleaning the filter mounting surface to ensure a proper seal. Take care not to damage the mounting surface during this process.

Once the surface is clean, install the new filter and tighten it securely using the torque wrench according to the recommended specification. This will help prevent any leaks or damage to the filter.

After replacing the filter, it's important to refill the transmission with the appropriate amount of new transmission fluid. Be sure to use the correct type of fluid as specified by the manufacturer.

Regularly replacing the transmission fluid filter will help maintain the performance and longevity of your Harley Davidson motorcycle.

Refill the Transmission With New Fluid

Start by gradually adding the specified amount of new gear oil (0.95 quarts or 946 milliliters) to refill the transmission, taking care to prevent overfilling. Before you begin, make sure you have the correct type of gear oil recommended by the manufacturer. Using the wrong type of oil can negatively impact the performance of your transmission.

To refill the transmission, locate the fill plug on the side of the transmission case. Remove the plug using an appropriate wrench or socket, and place a drain pan underneath to catch any excess oil that may spill out. Using a funnel, slowly pour the new gear oil into the transmission. Take your time to avoid overfilling, as this can cause damage to the transmission.

After adding the new fluid, it's important to check the fluid level to ensure it's at the correct level. Use the dipstick provided by the manufacturer to check the fluid level. Insert the dipstick into the fill plug hole and remove it. Look for the fluid level on the dipstick. If the level is below the recommended range, add more gear oil. If it's above the range, drain some oil until it reaches the desired level.

Once you have refilled the transmission, replace the o-ring on the dipstick to prevent leaks and ensure a proper seal. Reinsert the dipstick into the fill plug hole and tighten it securely. Allow the fluid to settle for a few minutes, and then check for any leaks around the fill plug and dipstick. If there are no leaks, you can proceed to test the bike.

Test the Transmission and Check for Leaks

After successfully refilling the transmission with new gear oil, it's crucial to thoroughly test the transmission and check for any potential leaks. To test the transmission, start the engine and shift through the gears one by one. Pay close attention to the transitions between gears to ensure they're smooth and seamless. If you notice any abrupt or rough shifting, it could be an indication of a problem with the transmission.

Next, inspect the area around the drain plug, fill plug, and dipstick for any signs of leaks. Look for any oil spots or drips that may indicate a leak. It's important to address any leaks promptly to prevent further damage to the transmission.

Allow the bike to run for a few minutes and then recheck for leaks. Sometimes, leaks may only become apparent after the transmission has warmed up. If you notice any new leaks, it's essential to identify the source and address the issue accordingly.

To further test the transmission and ensure there are no leaks during operation, take the bike for a short ride. Pay attention to how the transmission performs and listen for any unusual noises. If everything feels and sounds normal, it's a good indication that the transmission is in good working condition.

After the test ride, carefully inspect the area under the bike for any new leaks. Sometimes, leaks may only become apparent after the bike has been in motion. By checking the area under the bike, you can confirm whether there are any leaks that weren't visible before.

Conclusion

In conclusion, regular maintenance, including changing the transmission fluid, is crucial for the optimal performance of your Harley Davidson.

Just like how a well-oiled machine runs smoothly, your bike needs the right fluid to ensure smooth gear shifts and prevent damage.

By using Redline V-Twin Synthetic Gear Oil and following the steps outlined in this tutorial, you can keep your Harley running like a finely-tuned instrument, ready to hit the open road with confidence.

Remember, taking care of your bike is an investment in your riding experience.

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