I am a new owner of a 02 Road King. I am getting ready to change the oils. Is there a drain for the primary or do you just unscrew the access plate? Once drained how much oil does the primary hold?
A pipe plug below the clutch access cover to drain and 32 oz of your favorite Primary Chain Case oil IE; FORMULA + OR 20-50 Amsoil. While there, check the primary chain and clutch adjustments. A manuel helps.