Location of drain plug on 1981 Harley Davidson FLH?

On a 1981 Harley Davidson FLH, the drain plug is located on the bottom of the oil tank. To access it, you'll need to position your motorcycle on a level surface and possibly remove any lower fairings if applicable. The drain plug is typically a hex or socket head bolt, which you can loosen to drain the oil. Always ensure to replace the plug securely after draining.