The component with the lowest price in the ELECTRICAL 1 schematic is the Bolt, Small Flange.
Some items from this specific schematic: Plug Cap Assy, Bolt, Small Flange, C.d.i. Unit Assy, Ignition Coil Assy.
With all the components that make up the YZ85 2002 5PA3 JAPAN 1A5PA-100E1 ELECTRICAL 1 assembly. The Bolt, Small Flange is the most frequently specified with two applications.