Parts such as the Shift Cam - Fork: Bolt, Bar, Shift Fork Guide 2, Spring, Tension (260), Circlip(2r6) are included in the Tz125 1980 (a) Usa Shift Cam - Fork parts fiche.
The Tz125 1980 (a) Usa Shift Cam - Fork consists of twenty-one pieces with the Shift Cam Assy being the most expensive.
In this schematic the "Pin,dowel (620)" is used most often.