Parts such as the Exhaust Valve (model P/r/s/t): Shaft,exhaust Valve, Screw 5x12, Actuator,exhaust Valve, Bolt are included in the Rmx250 1991 (m) Usa (e03) Exhaust Valve (model P/r/s/t) parts fiche.
The Screw is the lowest priced item on this Exhaust Valve (model P/r/s/t) schematic.
Of all the components used in this assembly the Guide Set,exhaust Valve is the most expensive.
