2003 Polaris 3 PRO X Factory Service Manual, Page 75Get this manual
ENGINE V.E.SAssembly V.E.SAssembly 1Insert exhaust valve into valve housingReplace housing gasket2Install washer, beveled side out, and bellows
3Apply Loctitet 262 to the threads of valve and install valve capTorque to specification
Valve Cap Torque: Ft lbs (8.3 Nm)