Kawasaki Ninja Service Manual: Cylinder (Upper Crankcase) Wear Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / 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].
Tighten the cylinder head bolts (see Cylinder Head Installation in the Engine Top End chapter).
Put the crankcase upside down.

Cylinder (Upper Crankcase) Wear Inspection

Since there is a difference in cylinder wear (upper crankcase) in different directions, take a side-to-side and a front-to-back measurement at each of the two locations (total of four measurements) as shown in the figure.

If any of the cylinder inside diameter measurements exceeds the service limit, replace the crankcase.

10 mm (0.39 in.) [A] 60 mm (2.36 in.) [B]

Cylinder (Upper Crankcase) Inside Diameter

Standard: 75.994 76.006 mm
(2.9919 2.9924 in.)

Service Limit: 76.09 mm (2.996 in.)

Cylinder (Upper Crankcase) Wear Inspection

Piston Installation

Apply molybdenum disulfide oil solution to the oil ring expander, and install the oil ring expander [A] in the bottom piston ring groove so the ends [B] not butt together Applymolybdenum disu ...

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 ...

Other materials:

Oxygen Sensor Installation (Equipped Models)
NOTICE Never drop the oxygen sensor [A] especially on a hard surface. Such a shock to the unit can damage it. Do not touch the sensing part [B] to prevent oil contact. Oil contamination from hands can reduce sensor performance. Tighten: Torque - Oxygen Sensor: 25 N·m (2.5 kgf·m, 18 ...

Front Fork Installation (Each Fork Leg)
Install the fork so that the top plug end [A] as shown in the figure. 11 mm (0.43 in.) [B] Steering Stem Head [C] Tighten: Torque - Front Fork Clamp Bolts (Lower): 23 N·m (2.3 kgf·m, 17 ft·lb) NOTE Tighten the two lower front fork clamp bolts alternately two times to ensur ...

Rear Shock Absorber Inspection
Remove the rear shock absorber (see Rear Shock Absorber Removal). Visually inspect the following items. Smooth Stroke Oil Leakage Crack or Dent If there is any damage to the rear shock absorber, replace it. Visually inspect the rubber bushing [A]. If it show any signs o ...