On this parts fiche the Collar 648416560000 is the most specified component.
Parts such as the Control - Engine: Lever, Magneto Control, Bushing, Pin, Spring (6h3), Joint, Link are included in the 50etsk/etlk 1984/1985 Control - Engine parts fiche.
The Control - Engine is made up of components including this Lever, Magneto Control which is the most expensive.