Honda CRF450X 2021 Manual page 23

Instruments
#
To Reset the Tripmeter [TRIP A/B]、
Average Fuel Mileage [AVG] and Fuel
Consumption
To reset tripmeter A, fuel consumption
(based on tripmeter A) and average fuel
mileage (based on tripmeter A) together,
press and hold the SEL button with the
tripmeter A, fuel consumption (based on
tripmeter A) or average fuel mileage (based
on tripmeter A) displayed.
Tripmeter A
Average fuel mileage A
Or
20
(Continued)
Fuel Consumption A
Or
When they are reset, reset display appears at
each indication.