Kawasaki Ninja Service Manual: Piston Wear Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Wear Inspection

Measure the outside diameter [A] of each piston 5 mm (0.20 in.) [B] up from the bottom of the piston at a right angle to the direction of the piston pin.

If the measurement is under service limit, replace the piston.

Piston Wear Inspection

Piston Diameter

Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
Service Limit: 75.81 mm (2.985 in.)

Cylinder (Upper Crankcase) Wear Inspection

Split the crankcase (see Crankcase Splitting). Remove the pistons (see Piston Removal). Assemble the cylinder (upper crankcase) [A], the cylinder head [B] and the cylinder head gasket [C]. ...

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 ...

Other materials:

Rocker Arm Removal
Squeeze the brake lever slowly and hold it with a band. Remove the front footpeg bracket bolts. Raise the rear wheel off the ground with the jack (see Rear Shock Absorber Removal). Special Tools - Jack: 57001-1238 Jack Attachment: 57001-1608 Remove: Lower Rear Shock Absorber B ...

Mode-switching
Depress the S-KTRC button on the left handlebar switch to change the mode. The mode can be changed only when the throttle grip is closed completely. The S-KTRC OFF can be selected only when the motorcycle is at a stop. Changing to mode 1 from S-KTRC OFF is possible while riding. NOTE ...

Crankshaft Sensor Peak Voltage Inspection
Refer to the Crankshaft Sensor Peak Voltage Inspection in the Electrical System chapter. If the reading is within the standard, remove the ECU and check the wiring for continuity between harness connectors. Special Tool - Hand Tester: 57001-1394 Disconnect the ECU and sensor connector ...