The component with the lowest price in the CRANKSHAFT/PISTON schematic is the O Ring,14mm.
This part-list fiche shows all the components that make up the Jb650-a4 Jetmate 1992 Usa Canada Crankshaft/piston .
A sample from the products for the Crankshaft/piston include: Ring-set-piston,std, Piston-engine Ll,o/s, Seal-oil,fwj15307210, O Ring,14mm.