Some items from this specific schematic: Gear,crank Bal Driven(nt:46), Shim, Balancer,crankshaft, Spring.
The Crank Balancer is made up of components including this Gear,crank Bal Driven(nt:46) which is the most expensive.
This part-list fiche shows all the components that make up the Dr250s 1982 (z) Crank Balancer .