Parts such as the Crankshaft: Piston Set(os:0.5), Plate,crank Thrust, Nut, Piston are included in the Gsx600fu 2000 (y) Crankshaft parts fiche.
This Crankshaft Set is the most expensive of the items that make up this Crankshaft assembly.
In this schematic the "Nut" is used most often.