How do you change Transmission oil on 2007 Harley Davidson fat boy?

To change the transmission oil on a 2007 Harley Davidson Fat Boy, first, ensure the bike is on a level surface and the engine is warm. Remove the transmission drain plug and allow the old oil to fully drain into a pan. Once drained, replace the drain plug, then remove the transmission fill plug and use a funnel to add new transmission oil until it reaches the appropriate level. Finally, replace the fill plug and check for any leaks.