The Honda E-5 CYLINDER has seven products enlisted in the schematic.
With three applications this Dowel,pin,12x20 is the most specified part.
Parts such as the E-5 Cylinder: Nut-wash.,8mm, O-ring,94.5x2, Cylinder Comp., Bolt,flange,6x25 are included in the Xr500 1980 (a) Canada E-5 Cylinder parts fiche.