Part Number: F8-05040403 (PAF8-05040403)
The part is used for engine models: Parsun F8/F9.8
This screw closes the fuel-drain opening in the side of the carburettor float chamber.
A separate sealing washer seals beneath its head.
It provides access for draining the chamber and is distinct from the throttle-stop and air-adjusting screws.