Replace it if necessary.

Inner Tube Inspection
Spring Tension InspectionECU 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
...
Exploded View
AL: Tighten the two clamp bolts alternately two times to ensure even
tightening torque.
G: Apply grease.
R: Replacement Parts
G: Apply grease.
L: Apply a non-permanent locking agent.
R: Replacement Parts
Specifications
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Model Identification
ZX1000JB (US and CA Models) Left Side View
ZX1000JB (US and CA Models) Right Side View
ZX1000JB (EUR Models) Left Side View
ZX1000JB (EUR Models) Right Side View
ZX1000KB (US and CA Models) Left Side View
ZX1000KB (US and CA Models) Right Side View
ZX1000KB (EUR Models) ...