The lowest price component in this Air Cleaner/muffler (km100-a6/a7 parts-list fiche is the Washer-spring,6mm.
With two applications this Screw-pan-cros,5x10 is the most specified part.
The Kawasaki AIR CLEANER/MUFFLER (KM100-A6/A7 has thirty-three products enlisted in the schematic.