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51
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PILOT OUTLET
BY-PASS
PILOT AIR JET
CHOKE
AIR
INTAKE
MAIN AIR JET
MAIN NOZZLE
FLOAT
NEEDLE VALVE
FUEL
PILOT JET
FLOAT
MAIN JET
11-3 FLOAT TYPE CARBURETOR
11-3-1 OPERATION AND CONSTRUCTION
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
The fuel flows from the fuel tank into the float
chamber through the 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
Fig11-1
Fig11-2
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