Kawasaki Ninja Service Manual: Cylinder Compression Measurement

Kawasaki Ninja Service Manual / Engine Top End / Cylinder Head / Cylinder Compression Measurement

NOTE

Use the battery which is fully charged.

Special Tools - Compression Gauge, 20 kgf/cm²: 57001-221 Compression Gauge Adapter, M10 × 1.0: 57001-1601 L-Shape Hose [C]: 57001-1606

Cylinder Compression Measurement


Cylinder Compression Usable Range: 1 099 1 668 kPa (11.2
17.0 kgf/cm²,
159 242 psi) at 320 r/min (rpm)


The following table should be consulted if the obtainable compression reading is not within the usable range.

Problem Diagnosis Remedy (Action)
Cylinder compression is higher than usable range Carbon accumulation on piston and in combustion chamber possibly due to damaged valve stem oil seal and/or damaged piston oil rings (This may be indicated by white exhaust smoke). Remove the carbon deposits and replace damaged parts if necessary.
Incorrect cylinder head gasket thickness Replace the gasket with a standard part.
Cylinder compression is lower than usable range Gas leakage around cylinder head Replace damaged gasket and check cylinder head warp
Bad condition of valve seating Repair if necessary.
Incorrect valve clearance Adjust the valve clearance.
Incorrect piston/cylinder clearance Replace the piston and/or cylinder.
Piston seizure Inspect the cylinder and replace/repair the cylinder and/or piston as necessary.
Bad condition of piston ring and/or piston ring grooves Replace the piston and/or the piston rings.
Cylinder Head
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Cylinder Head Removal
Remove: Thermostat Housing (see Thermostat Removal in the Cooling System chapter) Exhaust Pipe (see Exhaust Pipe Removal) Camshafts (see Camshaft Removal) Heat Insulation Plate [A] (see E ...

Other materials:

Tail/Brake Light (LED) Removal/Installation
Remove: Upper Seat Cover (see Seat Cover Removal in the Frame chapter) Disconnect the tail/brake light connector [A]. Remove: Tail/Brake Light Mounting Screws [A] Bolts [B] and Brackets [C] Bolt [D] Remove the tail/brake light [A]. Bring down the rear fender rea ...

Valve Clearance Adjustment
To change the valve clearance, remove the camshafts (see Camshaft Removal in the Engine Top End chapter) and valve lifters. Replace the shim with one of a different thickness. NOTE Mark and record the locations of the valve lifters and shims so that they can be reinstalled in their ...

Front Wheel Rotation Sensor Signal (Service Code 27)
Front Wheel Rotation Sensor Signal Inspection The front wheel rotation sensor sends the signal to the ECU through the KIBS hydraulic unit (KIBS equipped models). For other than KIBS equipped models, the signal is sent directly to the ECU. The ECU uses the wheel rotation sensor signal for KTRC ...