Parts such as the Meter - Key Set: Case,meter Lower, Cable,tachometer, Grommet, Tachometer Assy are included in the Cb250rs 1982 (c) England Meter - Key Set parts fiche.
Of all the components used in this assembly the Speedometer Assy. is the most expensive.
This METER - KEY SET assembly utilises six Screw-washer,4x12(s) - the highest specified component.