Honda NSS300A Owner's Manual page 26

Instruments
Speedometer
This shows your speed in kilometer per hour (km/h)
and/or miles per hour (mph) depend on type.
Display Check
When the ignition switch is turned to the (On) position, the speedometer and tachometer
needles swing to the maximum scale on the dial once, all the mode and digital segments will
show. If any part of these displays does not come on when it should, have your dealer check
for problems.
ED/II ED/IV ED/TU/II TU/III TU type
22
Tachometer red zone
(excessive engine rpm range)
"mile", "mile/gal", "mile/L" is not displayed.
Tachometer
NOTICE
Do not operate the engine in
the tachometer red zone.
Excessive engine speed can
adversely affect engine life.
INFO A
INFO B
button
button