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:

Camshaft Removal
Remove: Cylinder Head Cover (see Cylinder Head Cover Removal) Crankshaft Sensor Cover (see Crankshaft Sensor Removal in the Electrical System chapter) Using a wrench on the timing rotor bolt [A], turn the crankshaft clockwise until the line [B] (TDC mark for #1,4 pistons) on the timin ...

Warning Indicator Light (Red)
This red warning indicator light and the oil pressure warning symbol ( ) should go on whenever the ignition switch is turned to “ON” and go off after starting the engine. A. Warning Indicator Light (Red) B. Warning Symbols This red warning indicator light has the two warning function ...

Engine Installation
Apply molybdenum disulfide grease to the threads of the adjusting collars [A]. Install the adjusting collars to crankcase backside until end of the threads. Install the adjusting collar [A] to the frame until end of the threads. Replace the engine mounting nuts with ne ...