Parts such as the Cam Chain: Gasket(8.2x14x1) (nas), Plug, Bolt, Adjuster Assy,tensioner are included in the Dr200se 2001 (k1) Usa (e03) Cam Chain parts fiche.
The twelve Dr200se 2001 (k1) Usa (e03) Cam Chain component parts are all listed in this schematic.
The Cam Chain is made up of components including this Adjuster Assy,tensioner which is the most expensive.