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.

Drain the cooling system (see Coolant Change in the Periodic Maintenance chapter).
Fill the cooling system with fresh water mixed with a flushing compound.

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.

Warm up the engine, and run it at normal operating temperature for about 10 minutes.
Stop the engine, and drain the cooling system.
Fill the system with fresh water.
Warm up the engine and drain the system.
Repeat the previous two steps once more.
Fill the system with a permanent type coolant and bleed the air from the system (see Coolant Change in the Periodic Maintenance chapter).

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:

Fuel Hose Replacement
Remove the fuel tank (see Fuel Tank Removal in the Fuel System (DFI) chapter). WARNINGFuel is flammable and explosive under certain conditions and can cause severe burns. Be prepared for fuel spillage; any spilled fuel must be completely wiped up immediately. When the fue ...

Spring Preload Adjustment
To adjust the spring preload, turn the spring preload adjuster [A]. The standard adjuster setting is the 6 turns in from the fully counterclockwise position. WARNINGIf both adjusters are not adjusted equally, handling may be impaired and a hazardous condition may result. B ...

DFI Parts Location
Main Throttle Sensor [A] Subthrottle Sensor [B] Idle Speed Control Valve Actuator [C] Subthrottle Valve Actuator [D] Intake Air Pressure Sensor #2 [E] Stick Coils #1, #2, #3, #4 [F] Air Switching Valve [G] Intake Air Pressure Sensor #1 [H] Water Temperature Sensor [A] Primary Fuel Injec ...