In this schematic the "Cotter, Valve" is used most often.
A sample from the products for the Valve System include: Pad, Adjusting 2 (1.95), Retainer, Valve Spring, Pad, Adjusting 2 (1.60), Pad, Adjusting 2 (1.25).
This part-list fiche shows all the components that make up the Xp500a 2007 15b2 Europe 1f15b-351fk Valve System .