1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 133Get this manual

1999 Polaris SLH, SLTH, SLX, SLTX, PRO785 Factory Service Manual, Page 133

FUEL SYSTEMCARBURETION Fuel Pump Maintenance Fuel Pump MaintenanceKeihin The fuel pump does not require any specific scheduled
fitting Apply PSI pressure to impulse line fittingThe diaphragm should hold pressure indefinitelyRemove and inspect the pump
diaphragms if the impulse chamber does not hold pressure Disassemblyllnspection 12Remove fuel pump body screws (4) and carefully
lift assembly from carburetorRemove gasket, diaphragm, and O-ring Carefully examine each for cracks, holes, distortion or
fatigue (stretching)Replace if necessaryInspect the check valves in the fuel pump bodyThe valve body cannot be disassembled