Parts such as the Valve(s): Valve-exhaust, Oil Seal,rv37129.5, Screw,slotted, Rocker, Arm-rocker are included in the Kvf300-b2 2000 Europe Uk As Valve(s) parts fiche.
With four applications this Collet,retainer is the most specified part.
The Kawasaki VALVE(S) has fourteen products enlisted in the schematic.