With a quantity of eight pieces, the Screw Pan Head is the most used part in the CRANKCASE diagram.
The twelve Rx50 50special 1983 (d) Usa Crankcase component parts are all listed in this schematic.
Some items from this specific schematic: Plug Straigtscrew 132153510000, Stopper, Lever Change, Crankcase 1, Crankcase 2.