Use a vernier caliper at several points around the piston.
Piston Ring Groove Width Standard:
Top [A] 0.82
0.84 mm (0.0323
0.0331 in.)
Second [B] 0.82
0.84 mm
(0.0323
0.0331 in.)
Service Limit:
0.92 mm (0.036 in.)
Second 0.92 mm (0.036 in.)

If the width of any of the two grooves is wider than the service limit at any point, replace the piston.
Piston Ring, Piston Ring Groove Wear Inspection
Piston Ring Thickness InspectionSteering Damper Removal
ZX1000JC/KC
Remove:
Steering Damper Mounting Bolts (TORX Bolts) [A]
Washer [B]
Washer and Collar [C]
Steering Damper [D]
ZX1000JD/KD
Remove:
Clamp [A]
Connector [B] (Disconnect)
Steering Damper Mounting Bolts (TORX Bolts) [C]
Washer [D]
Washer and Collar [E]
Elect ...
Stem, Stem Bearing Removal
Remove:
Upper Fairing Assembly (see Upper Fairing Assembly
Removal in the Frame chapter)
Front Fender (see Front Fender Removal in the Frame
chapter)
Front Wheel (see Front Wheel Removal in the
Wheels/Tires chapter)
Steering Stem Head with Handlebars (see Handlebar
Removal)
Fron ...
Stick Coil Installation
Apply a thin coat of grease [A] to the stick coils for easy
installation.
Insert the stick coils so that the coil heads align with the
lines [B] on the cylinder head cover.
NOTICE
Do not tap the coil head while installing the coil.
After installation, be sure the stick coils are ...