2003 Polaris Freedom, Virage and Genesis PWC Service Manual, Page 155Get this manual
FuelExhaust Fuel Pump Maintenance
The fuel pump does not require any specific scheduled maintenanceHowever, the following should be observed:Output: The pump output may be checked by removing the fuel supply line from the rear cylinder carburetor (PTO end) and placing it into containerWith the engine idling steady small stream of fuel should be observed! Cleaning: The pump and impulse line must be disassembled and cleaned whenever water is present in fuel (beyond separator) or in the engine! Impulse Diaphragm Inspection: Loosen clamp and remove impulse line from pump fittingApply PSI pressure to impulse line fittingThe diaphragm should hold pressure indefinitelyRemove and inspect the pump diaphragms if the impulse chamber does not hold pressureDisassemblyInspection 1Remove fuel pump body screws (4) and carefully lift assembly from carburetor2Remove gasket, diaphragm, and O-ringCarefully examine each for cracks, holes, distortion or fatigue (stretching)Replace if necessary