Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionHow Do I Get Warranty Service?
If there is a problem with your vehicle within the limited warranty period,
you will
need to schedule a service appointment and provide any maintenance records to
an authorized Kawasaki dealer for inspection and diagnosis. You can go to any
Kawasaki dealer for warranty repairs. Your Kawasaki de ...
Air Cleaner Housing Installation
For ZX1000JD/KD, be sure to install the pad [A].
Install the clamp bolt heads [A] inside as shown in the
figure.
Install the air cleaner housing on the throttle body assy.
Push in the ducts [B] touch the stoppers [C] of the throttle
body.
Be sure the hoses are routed correctly ...
Windshield
Windshield Removal
Remove:
Bolts [A] and Washers
Windshield [B]
Windshield Installation
Be sure to install the wellnuts [A] and the washers.
Tighten:
Torque - Windshield Mounting Bolts: 1.2 N·m (0.12 kgf·m,
11 in·lb)
...