The Crankcase assembly is constructed from several parts from which the Gasket (nas) is the most expensive.
Parts such as the Crankcase: Bolt, Bolt, Washer,lock, Screw are included in the T125ii 1971 (r) Usa (e03) Crankcase parts fiche.
With a quantity of twelve pieces, the Washer,lock is the most used part in the CRANKCASE diagram.