2004-2009 Honda TRX450R/TRX450ER Service Manual, Page 118Get this manual
FUEL SYSTEM ('04'05)
SERVICE INFORMATION
GENERAL
Bending or twisting the control cable will impair smooth operation and could cause the cable to stick or bind, resulting in loss of vehicle control Work in well ventilated areaSmoking or allowing flames or sparks in the work area or where gasoline is stored can cause fire or explosion When disassembling the fuel system parts, note the locations of the O-ringsReplace them with new ones on reassembly Before removing the carburetor, place an approved gasoline container under the carburetor drain hose, loosen the drain screw and drain the carburetor After removing the carburetor, wrap the intake port of the engine with shop towel or cover it with pieces of tape to prevent any foreign material from dropping into the engine If the vehicle is to be stored for more than one month, drain the float chamberFuel left in the float chamber may cause clogged jets, resulting in hard starting or poor driveability For fuel tank removal and installation (page 3-9) For throttle position sensor service (page 20-20)