Parts such as the E-2: Cover L,cyln Side, Clip,pulser Cord., Gasket,cyln L Sid (nas), Bolt,flang,socket are included in the Cr250r 2004 (4) Japan Me03-198 E-2 parts fiche.
The sub assemblies and components that make up this E-2 include this Guide Comp,valve, the most expensive part.
On this parts fiche the Bolt,flange,5x16 is the most specified component.