In this schematic the "Screw, Pan Head" is used most often.
Parts such as the Carburetor: Pipe, Jet, Pilot (# 35), Jet,main No310, Plug, Screw are included in the Yz80l 1999 4es8 England 294es-100e1 Carburetor parts fiche.
The Carburetor assembly is constructed from several parts from which the Carburetor Assy 1 is the most expensive.