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:

Release Shaft Installation
Apply grease to the oil seal lips on the upper ridge of the clutch cover. Apply engine oil to the needle bearings in the hole of the clutch cover. Applymolybdenum disulfide grease to the pusher-holding portion [A] on the release shaft. Install the washer [B] and spring [C]. ...

Charging Condition Inspection
Battery charging condition can be checked by measuring battery terminal voltage with a digital voltmeter [A]. Remove the seat (see Seat Removal in the Frame chapter). Disconnect the battery terminals. NOTICE Be sure to disconnect the negative (–) cable first. Measure the battery ...

Engine Removal
Support the rear part of the swingarm with a stand. Squeeze the brake lever slowly and hold it with a band [A]. WARNINGMotorcycle may fall over unexpectedly resulting in an accident or injury. Be sure to hold the front brake when removing the engine. NOTICE Be sure ...