If the display function does not work, replace the meter unit.

Check 3-6: Neutral Indicator Light (LED) Inspection
Meter Unit Circuit (ZX1000J Model)Starter Relay Inspection
Remove the front seat (see Front Seat Removal in the
Frame chapter).
Remove the battery negative (–) cable from the battery
negative (–) terminal (see Battery Removal).
Take the starter relay [A] off the rear fender.
Remove the cover [B].
Remove:
Starter Motor Cable [A] ...
Stopping the Motorcycle in an Emergency
Your Kawasaki Motorcycle has been
designed and manufactured to provide
you optimum safety and convenience.
However, in order to fully benefit
from Kawasaki’s safety engineering
and craftsmanship, it is essential that
you, the owner and operator, properly
maintain your motorcycle and becom ...
Subthrottle Sensor Resistance Inspection
Turn the ignition switch to OFF.
Disconnect the subthrottle sensor connector.
Connect a digital meter [A] to the subthrottle sensor connector
[B].
Measure the subthrottle sensor resistance.
Subthrottle Sensor Resistance
Connections: BL lead [D] ←→ BR/BK lead [C]
Standard: ...