Parts such as the Exhaust Valve: Governor Assembly,exhaust, Shim(19.1x25x0.3), Valve,exhaust Low,l, Starter,exhaust Valve Actuator are included in the Rmx250 1997 (v) General (e01) Exhaust Valve parts fiche.
In this schematic the "Screw 5x12" is used most often.
Of all the components used in this assembly the Guide Set,exhaust Valve is the most expensive.