Kawasaki Ninja Service Manual: Piston Ring Groove Width Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Ring Groove Width Inspection

Measure the piston ring groove width.

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.)

Piston Ring Groove Width Inspection

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

Check for uneven groove wear by inspecting the ring seating. The rings should fit perfectly parallel to groove surfaces. If not, replace the piston and all the piston rings. With the pist ...

Piston Ring Thickness Inspection

Measure the piston ring thickness. Use the micrometer to measure at several points around the ring. Piston Ring Thickness Standard: Top [A] 0.77 0.79 mm (0.0303 0.0311 in.) Second [B] 0. ...

Other materials:

Fuses
Fuses are arranged in the fuse boxes located under the passenger’s seat and in the left fairing. The main fuse is located under the passenger’s seat. If a fuse fails during operation, inspect the electrical system to determine the cause, and then replace it with a new fuse of proper amp ...

Subthrottle Valve Actuator Inspection
NOTE Be sure the battery is fully charged. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Turn the ignition switch to ON. Check to see that all the subthrottle valves [A] open and close smoothly. Turn the ignition switch to OFF. I ...

Intake Air Temperature Meter
Intake air temperature meter indicates temperature of the air in the air cleaner case. The “Intake Air” is displayed if the intake air temperature meter is selected. A. Intake Air Temperature Meter B. “Intake Air” NOTE The intake air temperature meter shift to the coolant temp ...