Some items from this specific schematic: Gear,main.second, B/brg Rad N/com, Gear,m/shaft 6th, Ring,set,62mm..
On this parts fiche the Washer,thrust25mm is the most specified component.
The Xl250r 1983 (d) Usa Transmission 82-83 consists of thirty-two pieces with the Ct/shaft,trans being the most expensive.