Honda Supra GTR150 2020 Owner's Manual page 27

Turn the ignition switch to the ON position.
!a
Shift the transmission to Neutral (
!b
comes on).
Using the start button
!c
With the throttle completely closed.
Press the start button. Release the start
button as soon as the engine starts.
Using the kickstarter
Lightly depress the kickstarter until resistance
is felt. Then let the kickstarter return to the
top of its stroke. With the throttle completely
closed.
Operate the kickstarter starting from the top
of the stroke, kick through to the bottom with
a rapid, continuous motion.
If you cannot start the engine:
Open the throttle slightly (about 3 mm,
N indicator
without freeplay).
About 3 mm, without freeplay
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