Service Manual

3-14 FUEL SYSTEM
Carburetor
Fuel and Air Flow
FX Models
The main system of the carburetor consists of the main jet [A], valve seat [B], main nozzle [C], and
the main air passage [D] (main air jet [E]). The main system meters fuel to the engine during moderate
to heavy load conditions. Fuel flows through the main jet and into the main nozzle, where it is joined
by air from the main air passage (main air orifice). The resulting mixture flows out the end of the main
nozzle into the carburetor bore, where it is atomized by the high speed air flow, and carried into the
engine.