With a quantity of three pieces, the Ball is the most used part in the EXHAUST VALVE (MODEL K) diagram.
thirty-seven components are listed in the schematic for this Rmx250 1989 (k) Usa (e03) Exhaust Valve (model K) .
Some items from this specific schematic: Governor Assembly,exhaust, Retainer,exhaust Valve, Washer, Screw(6x10).