E-Z-GO FLEET 1999, Руководство по ремонту и обслуживанию техника

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Read all of Section Band this section before attempting any procedure. Pay particular attention to all Notes, Cautions and Warnings
GENERAL
The fuel system consists of a fuel tank, fuel lines, fuel fil­
ter, fuel pump and carburetor (Ref Fig. 1 on page H-1 ).
CARBURETOR OPERATION
The carburetor consists of four different systems:
• float
• pilot jet
• main jet
• choke systems
Float System
The float chamber is located on the underside of the car­
buretor and the correct fuel level is maintained by means
of the float and needle valve.
As the fuel flows from the fuel pump it must pass through
the needle valve and into the float chamber. As the fuel
enters the float chamber, the float starts to rise against
the needle valve. When the buoyancy of the float
Fuel Filter
Fuel Pump
Fuel Line
�.
--
·
·�
Carburetor
exceeds the fuel pressure on the needle valve, the float
closes the needle valve. The float is adjustable to main­
tain the correct fuel level within the float chamber. As fuel
is consumed from the float chamber, the float drops
which allows the needle valve to admit additional fuel.
Pilot Jet System
The pilot jet system function is to deliver fuel to the
engine during low speed operation. The fuel flow is
determined by the pilot jet size and the setting of the pilot
screw.
Main Jet System
The main jet system function is to deliver fuel to the
engine during acceleration and heavy load conditions.
Fuel flow is determined by the main jet size. Air is mixed
with fuel that passes through the bleed opening in the
main nozzle. This mixture passes into the carburetor ven­
turi as atomized air/fuel and is mixed with intake air and
delivered to the engine.
Fig. 1 Fuel System
Repair and Service Manual
Page H-1