Parts such as the E-15: Washer,17mm, Starter,kick, Washer,b.thrust, Rachet,driven are included in the Z50j Monkey 2007 (7) Japan Ab27-180 E-15 parts fiche.
The Circlip,ex16 is the lowest priced item on this E-15 schematic.
The sub assemblies and components that make up this E-15 include this Starter,kick, the most expensive part.