On this parts fiche the Nut,conn.rod is the most specified component.
The most reasonably priced component used on the Gl700i 1983 (d) Japan E-20 is the Clip,pistonpin 21.
Parts such as the E-20: Ring,piston(0.50), Piston,l.(0.25), Bolt,conn.rod, Brg,e,conn.rod are included in the Gl700i 1983 (d) Japan E-20 parts fiche.