4. FUEL SYSTEM
Main Jet/Jets/Pilot Screw/Throttle Stop
Screw Removal
Remove the main jet, needle jet holder, and
needle jet.
Remove the slow jet.
Remove the pilot screw and throttle stop
screw.
CAUTIONS !
Accelerating Pump Removal
Remove the three accelerating pump cover
screws and accelerating pump cover.
Remove the spring and accelerating pump
diaphragm.
Inspection
Inspect the accelerating pump diaphragm for
cracks, damage or deterioration. Replace
with a new one if necessary.
Pump Cover
Be careful not to damage the jets and
jet holder when removing them.
• Before removing, turn the throttle stop
screw and pilot screw in and carefully
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.
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