2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 117Get this manual

2009 Polaris Scrambler 500 4x4 2x4 factory service manual, Page 117

FUEL SYSTEMCARBURETION FUEL PUMP DISASSEMBLY 1Remove the screws from the pump diaphragm coverNote the location of the two
the surfaces for damageReplace diaphragms and gaskets as set4Reassemble the pump in the reverse order of disassemblyTighten
all screws evenly 2Open bowl drain screw by turning counterclockwise approximately two turnsStart and run engine for to seconds
to allow fuel level to stabilize in the lineIf level is out of specification, remove carburetor and inspect inlet needle
and seat, float height, passages, etcNOTE: If line was removed to perform this procedure, it must be replaced FUEL PUMP This
ATV is equipped with pressure regulated fuel pump (1-3 PSI)The pump is located under the left front fender of the machineTo
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