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5. FUEL SYSTEM MXU 250R/300R
Pull out the float pin, then remove float and Float
float valve.
Inspect the float for deformation or damage.
Float Valve Float Pin
Throttle Stop Screw Slow Jet
Remove the main jet, needle jet holder, and
needle jet.
Remove the slow jet.
Remove the air screw and throttle stop
screw.
Air Screw Main Jet
CAUTIONS! Throttle Stop Screw Spring
· Be careful not to damage the jets and
jet holder when removing them.
· Before removal, turn the throttle stop
screw and air screw in and count the
number of turns until they seat lightly
and then make a note of this.
· Do not force the screw against its seat
to avoid seat damage.
· Be sure to install the O-ring in the
reverse order of removal.
Air Screw Spring Washer O-ring
5-11