Parts such as the E-2: Guide,in.valve, O Ring 9.0x1.6, Guide,ex.valve, Bolt,hs,6mm are included in the Crf70f 2011 (b) Japan De02-240 E-2 parts fiche.
The most expensive part in this assembly is the Head Comp,cylinde.
The seven Crf70f 2011 (b) Japan De02-240 E-2 component parts are all listed in this schematic.