In this schematic the "Cotter, Valve" is used most often.
The most reasonably priced component used on the Yfa1w Breeze 1989 Valve is the Cotter, Valve.
Parts such as the Valve: Shaft, Rocker 2, Arm, Valve Rocker, Valve, Intake, Cotter, Valve are included in the Yfa1w Breeze 1989 Valve parts fiche.