The eight Ls650p 1990 (l) (e24) Fuel Cock component parts are all listed in this schematic.
The component with the lowest price in the FUEL COCK schematic is the Bolt(6x20).
A sample from the products for the Fuel Cock include: Gasket(5.8x13x1.2) (nas), Hose (7x12x300), Cock Assy,fuel, Bolt(6x20).