2003 Polaris 3 PRO X Factory Service Manual, Page 115Get this manual
CARBURETION Mikuni TM-38TM-40 Carburetor Service Carburetor Disassembly
1Remove main jet, starter jet, pilot jet, and idle screw
2Clean all passages in carburetor body with carburetor cleanerDry all passages and jets with compressed airReplace gaskets and any parts which show wear or damage