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:

Radiator Hose and Pipe Inspection (coolant leak, damage, installation condition)
The high pressure inside the radiator hose can cause coolant to leak [A] or the hose to burst if the line is not properly maintained. Visually inspect the hoses for signs of deterioration. Squeeze the hoses. A hose should not be hard and brittle, nor should it be soft or swollen. Repl ...

Engine Stop Switch Operation Inspection
First Step Set the gear position in the neutral position. Turn the ignition switch to ON. Turn the engine stop switch to stop position [A]. Push the starter button. The engine does not start. If the engine starts, inspect the engine stop switch (see Switch Inspection in the Electri ...

Balancer Adjustment
Remove the left lower fairing (see Lower Fairing Removal in the Frame chapter). Start the engine and warm it up thoroughly. Adjust the balancer gear backlash with the engine idling. The amount of backlash can be changed by turning the balancer shaft which has eccentric journals. St ...