The Ybs67-8 Washer, Spring is the lowest priced item on this Rear Arm - Suspension schematic.
The Yamaha REAR ARM - SUSPENSION has twenty-seven products enlisted in the schematic.
Parts such as the Rear Arm - Suspension: Shock Absorber Assy, Rear, Rear Arm Comp., Nut, Cap, Bolt (663) are included in the Xj650 Maxim 1980 (a) Usa Rear Arm - Suspension parts fiche.