1999 Polaris PWC Genesis, Ficht, X-45 Service Manual, Page 111Get this manual

1999 Polaris PWC Genesis, Ficht, X-45 Service Manual, Page 111

FUEL SYSTEMCARBURETION Fuel Pump Operation Fuel Pump Operation The pump supplies fuel to carburetorsOn three cylinder models
on the fuel supply side of the chamber opens, allowing fuel to enterThis vacuum causes the ouU check valve 10 et close so
fuel cannot return from the carburetorSee Ill1 Negative (Iow) crankcase Diaphragm Fuel return to tank When the piston is
on its downstroke, the pressure from the crankcase the becomes positive causing diaphragm to move in the opposite directionreversing
the pressure in the pump chamberThis causes the inlet check valve to close and the outlet valve to open, delivering pressurized