A sample from the products for the Ignition ('81 Kx80-c1) include: Clamp,spark Plug Cap, Terminal,plug Cap, Stator, Nut,6mm.
On this parts fiche the Acrew-pan Head,5x14 is the most specified component.
The component with the lowest price in the IGNITION ('81 KX80-C1) schematic is the Washer-plain,5mm.