2008 Suzuki LT-A400/F, LT-F400/F ATV Service Manual, Page 169Get this manual
Fuel System:
Fuel System Description
Fuel System The fuel system consists of fuel tank, fuel filter, fuel valve, vacuum hose, fuel hose and carburetor assemblyWhen there is negative pressure (vacuum) in the combustion chamber, the fuel is able to flow from the fuel tank, through the fuel valve and then to the carburetor assembly