2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 167Get this manual

2001 Polaris Sportsman 400-500 DUSE and H.O. Service Manual, Page 167

FUEL SYSTEMCARBURETION
FUEL PUMP
The Polaris Sportsman is equipped with pressure regulated fuel pump (about 1-3 PSI)The pump is located under the headlight cover at the front of the machineRefer to illustration on following page for fuel pump component identificationTo test the fuel pump: 1Turn fuel off2Disconnect impulse line from pump3Connect Mity-Vac (PN 2870975) to the impulse line fitting on the pump4Apply inches (Hg) vacuum to the pump fittingThe diaphragm should hold vacuum indefinitelyIf fuel is present in the impulse line or vacuum chamber of the pump, the diaphragm is ruptured and the pump diaphragms must be replaced
FUEL PUMP DISASSEMBLY

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