Kawasaki Ninja Service Manual: Pressure Testing

Kawasaki Ninja Service Manual / Cooling System / Coolant / Pressure Testing

Remove: Upper Fairing Assembly (see Upper Fairing Assembly Removal in the Frame chapter) Radiator Cap [A]

Remove the radiator cap in two steps. First turn the cap counterclockwise to the first stop. Then push and turn it further in the same direction and remove the cap.

Install the cooling system pressure tester [A] on the filler neck.

Pressure Testing

NOTE

Wet the cap sealing surfaces with water or coolant to prevent pressure leaks.

Pressure Testing

Build up pressure in the system carefully until the pressure reaches 142 kPa (1.45 kgf/cm², 21 psi).

NOTICE

During pressure testing, do not exceed the pressure for which the system is designed. The maximum pressure is 142 kPa (1.45 kgf/cm², 21 psi).

Watch the gauge for at least 6 seconds.

If the pressure holds steady, the system is all right.

If the pressure drops and no external source is found, check for internal leaks. Droplets in the engine oil indicate internal leakage. Check the cylinder head gasket and the water pump.

Remove the pressure tester, replenish the coolant, and install the radiator cap.

Coolant Deterioration Inspection

Remove the right lower fairing (see Lower Fairing Removal in the Frame chapter). Visually inspect the coolant in the reserve tank [A]. If whitish cotton-like wafts are observed, aluminum par ...

Cooling System Flushing

Over a period of time, the cooling system accumulates rust, scale, and lime in the water jacket and radiator. When this accumulation is suspected or observed, flush the cooling system. If this accu ...

Other materials:

Hub Bearing Removal
Remove the wheels (see Front/Rear Wheel Removal), and take out the following. Collars Coupling (Out of rear hub) Grease Seals Use the bearing remover to remove the hub bearings [A]. NOTICE Do not lay the wheel on the ground with the disc facing down. This can damage or warp the d ...

Wheel Rotation Sensor Air Gap Inspection
Raise the front/rear wheel off the ground (see Front/Rear Wheel Removal in the Wheels/Tires chapter). Measure the air gap between the sensor and sensor rotor at several points by turning the wheel slowly. Thickness Gauge [A] Wheel Rotation Sensor Air Gap Standard: Front 0.4 1.6 mm ...

Rear Wheel Removal
Raise the rear wheel off the ground with the stand [A]. Remove: Cotter Pin [A] Rear Axle Nut [B] Washer [C] Rear Axle [D] (from Right Side) Remove the rear wheel rotation sensor from the caliper bracket (see Rear Wheel Rotation Sensor Removal in the Brakes chapter). ...