Harley-Davidson Motorcycles

How do you change oil in the primary case 1998 FLH?

Answer

Wiki User
10/09/2008

There are a couple of different ways. One you can crack the seal around the cover by loosing the screws/bolts and allowing the fluid to drain out. Another, you can remove the inspection cover and using a siphon pump. remove the fluid that way. If yours is so equipped, remove the clutch inspection cover and then remove the plug located on the bottom of the primary cover. Drain fluid into a suitable container.