Parts such as the Air Shroud-fan: Washer, Plain (646), Air Shroud, Cylinder 2, Fan Case Cover Comp., Bolt, Flange (5f7) are included in the G8-ah 1992 Air Shroud-fan parts fiche.
The Air Shroud-fan assembly is constructed from several parts from which the Air Shroud, Cylinder 1 is the most expensive.
The Yamaha AIR SHROUD-FAN has nine products enlisted in the schematic.