The thirty-one Gl1500c Valkyrie 2002 (2) France / Cmf Kph Cylinder Head component parts are all listed in this schematic.
Some items from this specific schematic: Nut,square,5mm, Cap,boost, Spark Plug 56, Spark Plug 58.
The component with the lowest price in the CYLINDER HEAD schematic is the Clip B7,tube.