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:

Brake Fluid Change
NOTE The procedure to change the front brake fluid is as follows. Changing the rear brake fluid is the same as for the front brake. Level the brake fluid reservoir. Remove: Screw [A] Stopper [B] Front Brake Reservoir Cap [C] Diaphragm Plate Diaphragm Remove the rubb ...

Piston Ring Groove Width Inspection
Measure the piston ring groove width. Use a vernier caliper at several points around the piston. Piston Ring Groove Width Standard: Top [A] 0.82 0.84 mm (0.0323 0.0331 in.) Second [B] 0.82 0.84 mm (0.0323 0.0331 in.) Service Limit: 0.92 mm (0.036 in.) Second 0.92 mm (0.036 in.) ...

Special Tools
Fork Oil Level Gauge: 57001-1290 Vacuum Gauge: 57001-1369 Hand Tester: 57001-1394 Throttle Sensor Setting Adapter #1: 57001-1400 Peak Voltage Adapter: 57001-1415 Needle Adapter Set: 57001-1457 Throttle Sensor Setting Adapter: 57001-1538 Measuring Adapter: 57001-1700 ...