Kawasaki Ninja Service Manual: Piston Ring, Piston Ring Groove Wear Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Ring, Piston Ring Groove Wear Inspection

The rings should fit perfectly parallel to groove surfaces.

If not, replace the piston and all the piston rings.

Piston Ring, Piston Ring Groove Wear Inspection


Piston Ring/Groove Clearance Standard:

Top 0.03 0.07 mm (0.0012
0.0028 in.)


Second 0.03 0.06 mm (0.0012
0.0024 in.)


Service Limit:

Top 0.17 mm (0.0067 in.)

Second 0.16 mm (0.0063 in.)

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 ...

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] 0.8 ...

Other materials:

Water Temperature Sensor Removal/Installation
NOTICE Never drop the water temperature sensor especially on a hard surface. Such a shock to the sensor can damage it. Remove the throttle body assy (see Throttle Body Assy Removal in the Fuel System (DFI) chapter). Drain the coolant (see Coolant Change in the Periodic Maintenance c ...

Brake Pedal Position Adjustment
NOTE Usually it is not necessary to adjust the pedal position, but always adjust it when push rod locknut has been loosened. Loosen the locknut [A] and turn the push rod with the hex head [B] to achieve the correct pedal position. If the length [C] shown is 69 ±1 mm (2.7 ±0.04 in.), th ...

External Shift Mechanism Removal
Remove: Shift Lever (see Shift Pedal Removal) Oil Pump Drive Gear (see Oil Pump Drive Gear Removal/ Installation in the Engine Lubrication System chapter) Circlip [A] Washer [B] Special Tool - Outside Circlip Pliers: 57001-144 Remove: Shift Shaft Assembly [A] Washer [B] ...