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:

Dimmer Switch
High or low beam can be selected with the dimmer switch. When the headlight is on high beam ( ), the high beam indicator light goes on. High beam.......( ) Low beam.......( ) NOTE When the headlight is on high beam, both headlights go on. When the headlight is on low beam, only one headl ...

License Plate Light Bulb Replacement
Remove: Screws [A] License Plate Light Cover [B] Pull the bulb [A] out of the socket [B]. NOTICE Do not turn the bulb. Pull the bulb out to prevent damage to the bulb. Do not use bulb rated for greater wattage than the specified value. Replace the bulb with a new one. In ...

Starter Motor Installation
NOTICE Do not tap the starter motor shaft or body. Tapping the shaft or body could damage the motor. Clean the starter motor legs [A] and crankcase where the starter motor is ground. Replace the O-ring [A] with a new one. Apply grease to the new O-ring. Tighten: Torque - Starter ...