twenty-six components are listed in the schematic for this Jt1200-d7f Jetski Stx-12f 2007 Usa Crankshaft .
A sample from the products for the Crankshaft include: Bushing,crankshaft,#3, Washer, Coupling, Bushing,crankshaft,#2.
On this parts fiche the Nut,connecting Rod is the most specified component.