Kawasaki Ninja Service Manual: Piston Ring Groove Width Inspection

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

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:

Service Code Erasing
When repair has been done, warning indicator light (LED) and warning symbol go off and service code are not displayed. But the service codes stored in memory of the ECU are not erased to preserve the problem history. In this model, the problem history can not be erased. However, the memorie ...

Special Tools and Sealant
Oil Pressure Gauge, 5 kgf/cm²: 57001-125 Hand Tester: 57001-1394 Needle Adapter Set: 57001-1457 Extension Tube: 57001-1578 Fuel Pressure Gauge Adapter: 57001-1593 Fuel Hose: 57001-1607 Measuring Adapter: 57001-1700 Liquid Gasket, TB1211: 56019-120 ...

Camshaft Chain Tensioner Installation
Replace the O-ring [A] with a new one. Apply grease to the new O-ring. Release the stopper [B] and push the push rod [C] into the interior of the tensioner body [D] so that the position of the push rod is 3 or 4 notches [E] as shown in the figure. Install the tensioner body so that the ...