2005 Polaris Sportsman 400/500 Service Manual, Page 124Get this manual
FUEL SYSTEMCARBURETION
CARBURETOR DISASSEMBLYMIKUNI CV
Use the following disassembly, assembly, and inspection techniques to service CV carburetor1Remove carburetor diaphragm chamber cover with ratchet style screwdriverDO NOT use an impact driver to remove the screws or carburetor may be permanently damaged
4Remove the pilot mixture screw, spring, flat washer, and O-RingIf an anti-tamper plug is installed over the pilot screw cavity, it must be removed for access
2Remove float bowl and carefully remove the pressed float pinSupport Here