2000 Polaris Indy 500 / 600 snowmobile service manual, Page 156Get this manual
FUEL SYSTEMCARBURETION Exploded ViewTwin Cylinder (Typical) Fuel Pump
Fuel Out
Impulse Fitting Parts Description 1Pump Body Assembly 2Lower Gasket 3Diaphragm 4Upper Gasket 5Screw (6 used) 6Check Valve