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:

Coupling Bearing Inspection
Since the coupling bearing is made to extremely close tolerances, the clearance can not normally be measured. NOTE It is not necessary to remove the coupling bearing for inspection. If the bearing is removed, it will need to be replaced with a new one. Turn the bearing in the coupling b ...

Front Fork
The front fork operation and oil leakage should be checked in accordance with the Periodic Maintenance Chart. For various riding or load conditions the front fork can be adjusted for: Spring preload Rebound damping force Compression damping force WARNINGImproper fork leg adju ...

Water Pump Impeller Disassembly/Assembly
Remove the water pump impeller (see Oil Pump Removal in the Engine Lubrication System chapter). The sealing seat and rubber seal may be removed easily by hand. Apply coolant around the surfaces of the rubber seal and sealing seat. Install the rubber seal [A] and sealing seat [B] into ...