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:

Transmission Assy Removal
Remove: Engine Sprocket (see Engine Sprocket Removal in the Final Drive chapter) Gear Position Switch (see Gear Position Switch Removal in the Electrical System chapter) Collar [A] O-ring [B] Remove: Clutch (see Clutch Removal in the Clutch chapter) Shift Shaft Assembly ...

Coupling Bearing Removal
Remove: Coupling Grease Seal Circlip [A] Special Tool - Inside Circlip Pliers: 57001-143 Remove the bearing [A] by tapping from the wheel side. Special Tool - Bearing Driver Set [B]: 57001-1129 ...

Stick Coil Input Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the ECU (see ECU Removal in the Fuel System (DFI) chapter). Do not disconnect the ECU connectors. Connect a digital meter [A] to the connector [B] with the needle adapter set. Special Tool - N ...