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8.
CARBURETOR
8-
1
OPERATION
AND
CONSTRUCTION
8-1
-
1
FLOAT
SYSTEM
The float chamber
is
located below the carburetor
body and, with a float and
a
needle valve,
maintains
a
constant fuel level
during
engine
operation. (See
Fig.
66.)
The fuel flows from the fuel tank
into
the float
chamber through needle valve. When the
fuel
rises
to a specific level, the float rises, and when
its
buoyancy
and
fuel pressure are balanced, the
needle valve closes to shut off the fuel, thereby
keeping the fuel at the predetermined level.
Fig.
66
PILOT
OUTLET
PILOT JET
\I
BY
-
PASS,,
-
-
-
-
"-
-"
""-
"""-
f"
.
"_
-
"_
"
-
- -
-
-
-
"
-
-
-
-
-
-
\
"
\
I
[
[
PILOT AIR JET
\
!
I
MAIN
AIR
JET
MAIN
AT
-\
MAIN JET
Fig.
67
-
46
-