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:

Antenna Resistance Inspection
Turn the ignition switch to OFF. Remove the air cleaner housing (see Air Cleaner Housing Removal in the Fuel System (DFI) chapter). Disconnect the antenna lead connector [A]. Measure the antenna resistance. Antenna Resistance Connections: BK lead ←→ BK/W lead Standard: Ab ...

Shift Pedal Removal
Remove: Shift Lever Bolt [A] Front Footpeg Bracket Bolts [B] If the tie-rod [C] is to be removed from the shift pedal and the shift lever, loosen the tie-rod locknuts [D]. The front tie-rod locknut is left-hand thread. Remove: Shift Pedal Mounting Bolt [A] ...

Exhaust Pipe Removal
Remove: Radiator (see Radiator and Radiator Fan Removal in the Cooling System chapter) Exhaust Pipe Clamp Bolt [A] (Loosen) Remove the exhaust pipe holder nuts [A], and pull out the exhaust pipe [B] forward from the premuffler chamber. ...