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5. FUEL SYSTEM ATV 150/125
JETS/AIR SCREW/THROTTLE STOP Slow Jet Main Jet
SCREW REMOVAL
Remove the main jet, needle jet holder, and
needle jet.
Remove the slow jet.
Remove the air screw and throttle stop
screw.
Air Screw Throttle Stop Screw
CAUTIONS ! Air Screw O-ring Slow Jet
· 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.
Spring Washer Throttle Spring Main Jet
Stop Screw
FUEL RESERVOIR O-RING CHECK
Remove the O-ring.
INSPECTION
Inspect the check the O-ring for damage.
Replace with new ones if necessary
O-ring
CARBURETOR CLEANING
Blow compressed air through all passages of
the carburetor body.
5-6