Honda SUPER CUB 125 2021 Owner's Manual page 59

If you cannot start the engine:
Open the throttle slightly (about 3 mm (0.1 in),
without freeplay).
About 3 mm (0.1 in), without
freeplay
If the engine does not start:
! a
Open the throttle fully and press the start
button for 5 seconds.
b !
Repeat the normal starting procedure.
c !
If the engine starts, open the throttle slightly
if idling is unstable.
d !
If the engine does not start, wait 10 seconds
before trying steps
# If Engine Will Not Start
a ! b !
& again.
(P97)
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