Kawasaki Ninja Service Manual: Piston Ring Thickness Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Ring Thickness Inspection

Measure the piston ring thickness.

Use the micrometer to measure at several points around the ring.

Piston Ring Thickness Standard:

Top [A] 0.77 0.79 mm (0.0303
0.0311 in.)

Second [B] 0.78 0.79 mm
(0.0307 0.0311 in.)

Service Limit:

Top 0.70 mm (0.0276 in.)

Second 0.71 mm (0.0280 in.)

Piston Ring Thickness Inspection

If any of the measurements is less than the service limit on either of the rings, replace all the rings.

NOTE

When using new rings in a used piston, check for uneven groove wear. The rings should fit perfectly parallel to the groove sides. If not, replace the piston.

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 ...

Piston Ring End Gap Inspection

Place the piston ring [A] inside the cylinder (upper crankcase), using the piston to locate the ring squarely in place. Set it close to the bottom of the cylinder, where cylinder wear is low. ...

Other materials:

Antenna Resistance Inspection
Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the antenna lead connector [A]. Measure the antenna resistance. Antenna Resistance Connections: BK lead ←→ BK/W lead Standard: Ab ...

Coolant Reserve Tank Installation
Install the following to the coolant reserve tank [A]. Pad [B] Gasket [C] Cap [D] Collar [E] Install the coolant reserve tank and tighten the bolt [F]. Run the hoses correctly (see Cable,Wire, and Hose Routing section in the Appendix chapter). Fill the coolant reserve tank with ...

Swingarm Bearing Installation
Replace the needle bearings, ball bearing, grease seals and circlip with new ones. Install the needle bearings, ball bearing, grease seals and circlip as shown in the figure. Insert the needle bearing driver [A] into the needle bearing [B] and press the needle bearing into the housing u ...