The most reasonably priced component used on the Yn50 2004 1p91 Spain 1c1p9-352s1 Carburetor is the Pin, Float.
Some items from this specific schematic: Hose, Valve, Throttle 1, Nozzle, Main, Gasket (nas).
The twenty-six Yn50 2004 1p91 Spain 1c1p9-352s1 Carburetor component parts are all listed in this schematic.