2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 128Get this manual
FUEL SYSTEM {'04'05) CARBURETOR CLEANING Remove the fuel hose and strainer screen from the carburetor bodyClean the strainer screen with compressed airSTRAINER SCREEN
Remove the following: air cut-off valve (page 7-8) starting enrichment (SE) valve (page 7-8) throttle valve (page 7-9) float, all jets and pilot screw (page 7-11)