Honda CB650R 2021 Owner's Manual page 41

Setting Mode B
If the buttons are not pressed for about 30
seconds, the control is automatically switched
from the setting mode to the ordinary
display.
If the buttons are not pressed for about 30
seconds, items in the process of being set will
be discarded and only items that were set
and finalized will be applied. Only if the
ignition switch is turned to the
position, items in the process of being set
and those that are finalized will be applied.
Press and hold the
switch to the (On) position until the initial
animation ends
Press the button
SET
(Off)
button and ignition
SEL
Ordinary display
Setting Mode B
Setting of REV indicator
RPM setting
Interval RPM setting
Brightness adjustment
Changing of tachometer display mode
Continued
37