Honda Monkey 2021 Owner's Manual page 96

Instruments, Controls, & Other Features
High Beam Indicator
The high beam indicator will come on briefly due
to the capacitor being discharged when the
ignition switch is turned to the (On) position
immediately after the engine is stopped with the
high beam.
Headlight
The headlight will come on briefly due to the
capacitor being discharged when the headlight
dimmer switch is operated immediately after the
engine is stopped with the high beam.
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