Honda TRX400EX FOURTRAX 1999 Service Manual page 75

Install the throttle stop screw with the washer and
spring by screwing clockwise.
it
Secure the with the screw by aligning its hole
stay
and boss.
Turn the throttle stop screw to align the butterfly
throttle valve with the edge of the outside by-pass
hole in the carburetor.
AIR CUT-OFF VALVE
Install new O-rings onto the air cut-off valve into the
joint pipe.
Install the joint pipe into the air cut-off valve with the
stepped side facing out (valve side).
Install the air cut-off valve and secure
Connect the vacuum, air vent and fuel tubes
STAY
SCREV
with the screw.
it
shown.
as
FUEL SYSTEM
i
TUBES
5-1 1