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7. CARBURETOR
7-1 OPERATION AND CONSTRUCTION (See Fig.7-1)
7-1-1 FLOAT SYSTEM
The float chamber is located just below the carburetor body, and the float (F) and the float valve (F.V)
maintain a constant fuel level during engine operation.
The fuel flows from the fuel tank into the float chamber through the float valve. When the fuel rises to a
specific level, the float (F) rises; and when its buoyancy and fuel pressure are balanced, the float valve
(F.V) close to shut off the fuel, thereby keeping the fuel at the reference level.
Fig. 7-1
Main Air Bleed
(M.A.B)
Slow Air Bleed
(S.A.B)
Choke
(C)
Throttle Valve
(T.H.V)
Idle Port
(I.P)
Slow Jet
(S.J)
Main Nozzle
(M.N)
Slow Port
(S.P)
Float
(F)
Float Valve
(F.V)
Main Jet
(M.J)
燃料
Fuel