This schematic depicts all components used in the Ksf250-a5 Mojave250 1991 Usa Canada Cylinder/piston partslist.
On this parts fiche the Bolt-flanged-small is the most specified component.
Some items from this specific schematic: Ring-set-piston Ll,o/, Gasket,cylinder Base (nas), Clamp,cooling Hose, Ring-snap.