If they show any damage, replace it.

Caliper Fluid Seal Damage
Caliper Piston and Cylinder DamageESD (Electronic Steering Damper) ECU Communication Error (Service Code 3C,
ZX1000JD/KD)
ESD ECU Communication Line Inspection
When the data (for status of ESD system) is not sent from
the ESD ECU to the meter unit and ECU, the service code
3C is displayed.
The data is sent through the CAN communication line.
The service code 3C is detected with the meter unit.
The FI symbol does ...
Crankshaft Sensor Peak Voltage Inspection
NOTE
Be sure the battery is fully charged.
Using the peak voltage adapter [A] is more reliable way
to determine the condition of the crankshaft sensor than
crankshaft sensor internal resistance measurements.
Disconnect the crankshaft sensor lead connector (see
Crankshaft Sensor ...
Coolant Level Inspection
Situate the motorcycle so that it is
perpendicular to the ground.
Check the coolant level through the
coolant level gauge on the reserve
tank located to the left of the engine.
The coolant level should be between
the “F� (Full) and “L� (Low) level lines.
A. Reserve Ta ...