2000 Polaris Virage TX, SLX, Pro 1200, Genesis, Genesis FFI Personal Watercraft Service Manual, Page 106Get this manual

2000 Polaris Virage TX, SLX, Pro 1200, Genesis, Genesis FFI Personal Watercraft Service Manual, Page 106

http:ReadManm FUEL SYSTEMCARBURETION Fuel Pump Operation Fuel Pump Operation The pump supplies fuel to carburetorsOn three
fuel to enterThis vacuum causes the outlet check valve to close so fuel cannot return from the carburetorSee III1III1 Piston
on upstroke Inlet check valve open Outlet check valve closed Negative (low) crankcase Diaphragm Fuel return to tank When
the piston is on its downstroke, the pressure from the crankcase becomes positive causing the diaphragm to move in the opposite
direction, reversing the pressure in the pump chamberThis causes the inlet check valve to close and the outlet valve to open,