Since the hub bearings are made to extremely close tolerances, the clearance can not normally be measured.
NOTE
Do not remove any bearings for inspection. If any bearings are removed, they will need to be replaced with new ones.
If bearing play, roughness or binding is found, replace the bearing.
If the seal is torn or is leaking, replace the bearing.

Hub Bearing Lubrication
NOTE
Since the hub bearings are packed with grease and sealed, lubrication is not required.
Hub Bearing Installation
Final DriveThrottle Control System
Check the throttle grip play each day
before riding the motorcycle, and carry
out maintenance and adjustments in
accordance with the Periodic Maintenance
Chart. Adjust it if necessary.
Throttle Grip
The throttle grip controls the butterfly
valves in the throttle body. If the throttle
grip ha ...
ECU Identification
Most countries have their own regulations, so each ECU
has different characteristic. So, do not confuse ECU with
each other and use only the ECU for your model. Otherwise,
the motorcycle can not clear the regulation.
ECU Identification
ZX1000JB/KB
ZX1000JC /KC
...
Subthrottle Sensor Output Voltage Inspection
Measure the output voltage at the subthrottle sensor in
the same way as input voltage inspection, note the following.
Disconnect the subthrottle sensor connector and connect
the setting adapter [A] between these connectors.
Special Tool - Throttle Sensor Setting Adapter: 57001
-1538
...