The thirty-five Yt125k Tri-moto 1983 Oil Pump component parts are all listed in this schematic.
Parts such as the Oil Pump: Hose (l80), Ybs67-5 Washer, Spring, Gasket, Pump Case (mca), Clip (2a6) are included in the Yt125k Tri-moto 1983 Oil Pump parts fiche.