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Harley Davidson owners who take pride in their investment should service it as they do any other vehicle. Transmission oil is one of the primary lubricants that keep a Harley running. The owners manual recommends changing the transmission oil at 1,000 miles, 5,000 miles and at every 5,000-mile interval thereafter. This task only requires simple hand tools, making it easy for owners to maintain their transmission oil.
Step 1
Remove the filler plug on the clutch-release cover located on the right side of the transmission case with the appropriate size hex wrench. Visually inspect the O-ring inside the filler cap for tears or general deterioration. Replace the O-ring if necessary.
Step 2
Remove the magnetic drain plug located underneath the motorcycle --- exact location varies by model --- on the right side of the oil pan. Use a 5/8-inch socket and ratchet to remove the drain plug. Allow the used lubricant to drain into a suitable container.
Step 3
Wipe the drain plug with a shop towel. Because the drain plug is magnetic, residue may build up on the plug. Visually inspect the O-ring on the drain plug for tears or general deterioration. Replace the O-ring if necessary.
Step 4
Install the drain plug and tighten to 14 to 21 foot-pounds with a torque wrench.
Step 5
Fill the transmission with 20 to 24 ounces of transmission oil of your choice or until the oil level is to the "F" or full, mark. Ensure the motorcycle is level when checking the lubricant level. Do not tighten the filler plug to check the levels but instead rest the filler plug on the threads.
Tighten the transmission filler plug once the lubricant level is at full. Tighten the plug to 25 to 75 inch-pounds with a torque wrench.
Warnings
- Do not allow debris or dirt to enter the newly added lubricant.
- Do not allow lubricant to spill onto the tire, wheel or brake components, as this may adversely affect traction and cause loss of vehicular control.
Items you will need
- Hex wrench
- 5/8-inch socket and ratchet
- Drain pan
- Shop towel
- Torque wrench
