2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 48Get this manual
GENERAL INFORMATION After '05: TRANSMISSION BREATHER HOSE CARBURETOR
CRANKCASE BREATHER HOSE
SERVICING THE HONDA
U.S.AOnly Maintenance, replacement or repair of the emission control devices and systems may be performed by any motorcycle ATV repair establishment or individual using parts that are "certified" to EPA standards