4-10 FUEL AND LUBRICATION SYSTEM
DIAPHRAGM AND PISTON OPERATION
The carburetor is a variable-venturi type, whose venturi cross sectional area is increased or decreased
automatically by the piston valve
1
. The piston valve moves according to the negative pressure present on
the downstream side of the venturi
A
. Negative pressure is admitted into the diaphragm chamber
2
through
an orifice
3
provided in the piston valve
1
. Rising negative pressure overcomes the spring
4
force, causing
the piston valve
1
to rise into the diaphragm chamber and prevent the air velocity from increasing. Thus, air
velocity in the venturi passage is kept relatively constant for improved fuel atomization and the precise air/fuel
mixture.
LOWER POSITION OF THE PISTON VALVE
UPPER POSITION OF THE PISTON VALVE
NEGATIVE PRESSURE
Содержание GSX1200 1999
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Страница 85: ...3 50 ENGINE...
Страница 91: ...3 56 ENGINE BOND 1207B should be applied to the following locations The line of BOND...
Страница 105: ...3 70 ENGINE 24th pin 1st pin...
Страница 134: ...FUEL AND LUBRICATION SYSTEM 4 25 ENGINE LUBRICATION SYSTEM CHART...
Страница 135: ...4 26 FUEL AND LUBRICATION SYSTEM ENGINE LUBRICATION SYSTEM...
Страница 136: ...FUEL AND LUBRICATION SYSTEM 4 27 CYLINDER HEAD COOLING SYSTEM CHART...
Страница 137: ...4 28 FUEL AND LUBRICATION SYSTEM CYLINDER HEAD COOLING SYSTEM...
Страница 246: ...7 10 SERVICING INFORMATION WIRING DIAGRAM...
Страница 251: ...SERVICING INFORMATION 7 15 FUEL HOSE ROUTING Backward Fuel pump Clamp Fuel valve Topward Downward...
Страница 261: ...SERVICING INFORMATION 7 25 SEAT TAIL COVER INSTALLATION...
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