Kawasaki Ninja Service Manual: Piston Wear Inspection

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

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:

Spark Plugs
The standard spark plug is shown in the table. The spark plugs should be replaced in accordance with the Periodic Maintenance Chart. Spark plug removal should be done only by a competent mechanic following the instructions in the Service Manual. Spark Plug A. Plug Gap ...

Inner Tube Inspection
Visually inspect the inner tube [A]. If there is any damage, replace the inner tube. Since damage to the inner tube damages the oil seal, replace the oil seal whenever the inner tube is replaced. NOTICE If the inner tube is badly bent or creased, replace it. Excessive bending, followed by ...

Starter Clutch Removal
Remove: Torque Limiter (see Torque Limiter Removal) Transmission Assy (see Transmission Assy Removal) Starter Clutch Shaft Holder Bolt [A] Starter Clutch Shaft Bolt [B] Starter Clutch Shaft Holder [C] Remove the starter clutch shaft [A] using a suitable M8 bolt [B]. Take ...