Kawasaki Ninja Service Manual: Cylinder Compression Measurement

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


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

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:

Water Pump Impeller Disassembly/Assembly
Remove the water pump impeller (see Oil Pump Removal in the Engine Lubrication System chapter). The sealing seat and rubber seal may be removed easily by hand. Apply coolant around the surfaces of the rubber seal and sealing seat. Install the rubber seal [A] and sealing seat [B] into ...

Swingarm Installation
Visually inspect the chain guide [A]. Replace the chain guide if it shows any signs of abnormal wear or damage. Apply a non-permanent locking agent to the threads of the chain guide bolt [B]. Apply plenty of grease to the lip of the oil seals [A]. Be sure to install the oil seals ...

Camshaft Chain Tensioner Installation
Replace the O-ring [A] with a new one. Apply grease to the new O-ring. Release the stopper [B] and push the push rod [C] into the interior of the tensioner body [D] so that the position of the push rod is 3 or 4 notches [E] as shown in the figure. Install the tensioner body so that the ...