In this schematic the "Bolt (695)" is used most often.
eighteen components are shown in this 50eh 1987 Upper Casing exploded diagram.
Parts such as the Upper Casing: Gasket, Upper Casing (nas), Gasket, Upper Casing (nas), Gasket, Exhaust Manifold (nas), Washer, Plain (663) are included in the 50eh 1987 Upper Casing parts fiche.