Kawasaki Ninja Service Manual: Piston Wear Inspection

Kawasaki Ninja Service Manual / Crankshaft/Transmission / Pistons / Piston Wear Inspection

If the measurement is under service limit, replace the piston.

Piston Wear Inspection


Piston Diameter

Standard: 75.959 75.974 mm
(2.9905 2.9911 in.)
Service Limit: 75.81 mm (2.985 in.)

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]. ...

Piston Ring, Piston Ring Groove Wear Inspection
Check for uneven groove wear by inspecting the ring seating. The rings should fit perfectly parallel to groove surfaces. If not, replace the piston and all the piston rings. With the pist ...

Other materials:

Shift Fork/Gear Groove Wear Inspection
Measure the thickness of the shift fork ears [A], and measure the width [B] of the gear grooves. If the thickness of a shift fork ear is less than the service limit, the shift fork must be replaced. Shift Fork Ear Thickness Standard: 5.7 6.0 mm (0.224 0.236 in.) Service Limit: 5.6 mm ...

Troubleshooting guide
Engine Does Not Start Starter Motor Won’t Turn Engine stop switch off Transmission not in neutral Fuse blown Battery leads do not make good electrical contact with battery terminals Battery discharged Engine Cranks, But Won’t Start No fuel in tank Fuel line clogged Fuel ...

Front Fork
The front fork operation and oil leakage should be checked in accordance with the Periodic Maintenance Chart. For various riding or load conditions the front fork can be adjusted for: Spring preload Rebound damping force Compression damping force WARNINGImproper fork leg adju ...