Kawasaki Ninja Service Manual: Pressure Testing

Kawasaki Ninja Service Manual / Cooling System / Coolant / 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 first stop. Then push and turn it further in the same direction and remove the cap.

Install the cooling system pressure tester [A] on the filler neck.

Pressure Testing

NOTE

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

Pressure Testing

Build up pressure in the system carefully until the pressure reaches 142 kPa (1.45 kgf/cm², 21 psi).

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).

Watch the gauge for at least 6 seconds.

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:

Oil Filter Replacement
Drain the engine oil (see Engine Oil Change). Remove the left lower fairing (see Lower Fairing Removal in the Frame chapter). Remove the oil filter [A] with the oil filter wrench [B]. Special Tool - Oil Filter Wrench: 57001-1249 Replace the filter with a new one. Apply grease t ...

Switch Inspection
Using a hand tester, check to see that only the connections shown in the table have continuity. Special Tool - Hand Tester: 57001-1394 For the switch housings and the ignition switch, refer to the tables in the Wiring Diagram. If the switch has an open or short, repair it or replace it w ...

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 ...