2000 Polaris Indy 500 / 600 snowmobile service manual, Page 103Get this manual
ENGINES Variable Exhaust System (V.E.S V.E.SAssembly 1Insert exhaust valve into valve housingReplace housing gasket and install adaptorTorque adaptor screws to specification
Torque Adaptor Screw Torque: Ft lbs (10 Nm)