4-4 FUEL SYSTEM
FUEL VALVE
When the engine is not operating, the fuel valve
1
is kept closed by the tension of the spring
2
, which
closes the fuel passageway and stops the flow of fuel to the carburetors.
When the engine has started, negative pressure (vacuum)
A
is generated in the combustion chamber and
reaches the diaphragm through a passage in the carburetor’s main bore and the vacuum hose. This nega-
tive pressure (vacuum)
A
is higher than the spring pressure which causes the diaphragm to force open the
fuel valve
1
and allow fuel to flow to the carburetor assembly.
VACUUM
FUEL
“Fuel stop” condition
“Fuel flow” condition
Содержание GSF650
Страница 1: ...GSF650 S...
Страница 34: ...PERIODIC MAINTENANCE 2 21...
Страница 86: ...3 50 ENGINE Remove the 2nd driven gear bushing A Remove the oil seal B...
Страница 90: ...3 54 ENGINE...
Страница 103: ...ENGINE 3 67 BOND 1207B should be applied to the following locations The line of BOND...
Страница 130: ...3 94 ENGINE ENGINE LUBRICATION SYSTEM...
Страница 132: ...3 96 ENGINE CYLINDER HEAD COOLING SYSTEM...
Страница 145: ...4 10 FUEL SYSTEM I D NO LOCATION Each carburetor has an I D number 1 printed on its body...
Страница 317: ...SERVICING INFORMATION 7 29 BATTERY PROTECTOR INSTALLATION Protector Protector Battery Protector 50 mm 50 mm...
Страница 332: ...Prepared by November 2004 Part No 99500 36150 01E Printed in Japan 340...
Страница 333: ...Printed in Japan K5...