Check the operation of the
carburetor.
Check the throttle cable and link
operation.
Yes
No
Adjust the throttle cable and
throttle link.
Yes
Check the ignition system chart.
No
Adjust the pilot screw according
to specifications.
Yes
Using compressed air, clean the
pilot screw, needle valve, main
and pilot jets, and main nozzle.
Replace any damaged parts.
Is the
carburetor operat-
ing correctly?
Are they operat-
ing correctly?
Check the pilot screw.
Yes
Is the pilot screw
setting correct?
Disassemble the carburetor and
check the internal parts.
Check the throttle valve for
smooth operation.
No
Are the fuel or
air passages
clogged?
Yes
Correct or replace the carburetor.
No
Does the throttle
valve stick?
No
Check the ignition system or
compression system. Replace
if foulty parts.
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