Kawasaki Ninja Service Manual: Pressure Testing

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

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.

Pressure Testing


NOTE

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

Pressure Testing


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).

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:

Water Temperature Sensor Output Voltage Inspection
NOTE Be sure the battery is fully charged. Turn the ignition switch to OFF. Remove the throttle body assy (see Throttle Body Assy Removal in the Fuel System (DFI) chapter). Disconnect the water temperature sensor connector and connect the measuring adapter [A] between these connectors ...

Ignition Switch/Steering Lock
This is a three-position, key-operated switch. The key can be removed from the switch when it is in the OFF or LOCK position. A. Ignition Switch/Steering Lock B. ON position C. OFF position D. LOCK position NOTE The tail, city and license plate lights are on whenever the ignition key i ...

Coolant Filling
Remove the bolts and quick rivets. Detach the tabs and remove the right fairing and cover. A. Bolts B. Quick Rivet C. Large Quick Rivet D. Tabs E. Right Fairing and Cover NOTE The right fairing and cover uses the quick rivets and large quick rivet. The large quick rivet ca ...