1998-2004 Honda Foreman 450 factory service manual, Page 114Get this manual
FUEL SYSTEM Install the air vent tube and air cut off valve tube
STARTING ENRICHMENT (SE) VALVE
Install the spring over the choke cable and connect the cable end to the SE valveTRX450S
Move the choke lever all the way to the right and left and make sure that the SE valve operates properlyMove the choke knob all the way to pull and push and make sure that the SE valve operates properly
TRX450ES
CARBURETOR INSTALLATION