2005 Kawasaki KAF620 Mule 3010 Trans 4x4 Service Manual, Page 111Get this manual
5-10 ENGINE TOP END Cylinder Head
Remove: Retainers [A] Valve Spring
Split Keepers [B] Valve Springs Valves Press down the valve spring retainer holding the valve head, and remove the split keepers
Remove: [A] Oil Seals
Spring Seats [B]