2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 132Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 132

CARBURATION AND FUEL SYSTEM FUEL PUMP (CARBURATED) This ATV is equipped with pressure regulated fuel pump (1-3 PSI)The pump
securing the access cover to the front cab as shown belowImpulse Hose 4Apply 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 rupturedThe
pump must be replaced 3Move the seal out of the sealing channel and pull up on the front of the access coverRemove the access
cover Fuel Filter Replacement (Carbureted) 1Place shop towels andor feel catch container under the fuel filter2Loosen the
filter clamps and remove filter Typical Filter Location 3Install new filter onto fuel lines and install clamps4Dispose of