Kawasaki Ninja Service Manual: Cooling System Flushing

Kawasaki Ninja Service Manual / Cooling System / Coolant / 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 accumulation is not removed, it will clog up the water passage and considerable reduce the efficiency of the cooling system.

NOTICE

Do not use a flushing compound which is harmful to the aluminum engine and radiator. Carefully follow the instructions supplied by the manufacturer of the cleaning product.

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 ...

Coolant Reserve Tank Removal
Remove: Upper Fairing Assembly (see Upper Fairing Assembly Removal in the Frame chapter) Bolt [A] Cap [B] Pour the coolant into a container. Remove: Radiator Overflow Hose [C] (Discon ...

Other materials:

Check 2-2: Fuel Level Warning Inspection
Remove: Fuel Tank (see Fuel Tank Removal in the Fuel System (DFI) chapter) Connect the resistor(s) [A] (about 50 to 100 Ω) between the fuel pump connector terminal [B] of the main harness side and the battery negative (–) terminal [C] as shown. Turn the ignition switch ...

IC Igniter Inspection
The IC igniter is built in the ECU [A]. Refer to the following items. Interlock Operation Inspection (see Interlock Operation Inspection) Ignition System Troubleshooting (see Ignition System section) ECU Power Supply Inspection (see ECU Power Supply Inspection in the Fuel System (D ...

Intake Air Pressure Sensor #2 Output Voltage Inspection
Measure the output voltage at the intake air pressure sensor #2 in the same way as input voltage inspection, note the following. Disconnect the intake air pressure sensor #2 connector and connect the measuring adapter [A] between these connectors. [B] Main Harness [C] Intake Air Pressu ...