Parts such as the Oil Pump: '0'ring, Pump-assy-oil, Nut,cap,6mm, Clamp are included in the Jf650-b3 Jetski 1991 France Al / Ts Oil Pump parts fiche.
The component with the lowest price in the OIL PUMP schematic is the Clamp.
The five Jf650-b3 Jetski 1991 France Al / Ts Oil Pump component parts are all listed in this schematic.