On this parts fiche the Washer 214835240000 is the most specified component.
Some items from this specific schematic: Bolt (682), Speedometer Cable Assy, Bulb,(6v3w), Damper, Meter.
The lowest price component in this Speedometer - Tachometer (ct2/ct3) parts-list fiche is the Ybs66-6 Washer, Plain.