Carburetor; Operation And Construction - Robin America EY44-2 Service Manual

9. CARBURETOR
9-1 OPERATION
and
CONSTRUCTION (see Figs. 9-1-1 and 9-1-2)
9-1-1
FLOAT SYSTEM
The float chamber is located just below carburetor main body and serves to maint ain the fuel I
.eve1 at a cons itant height by a
joint action of float (F) and needle valve (NV) incorporated. The fuel flows
from
the fuel tank into float chamber via needle
valve, which is kept open while the fuel level is low, but closed when the fuel level reaches a predetermined level c o w i n g
the float to move up.
[THROTTLE V A L V E
r-BY.PASS
r M A l N NOZZLE
Fig.
9- 7- 1
,-NEEDLE V A L V E
FLOAT C H A M B E R
1
Fig. 9- 1-2
-22-