Kawasaki Ninja

Kawasaki Ninja Service Manual: Radiator Fan System

Kawasaki Ninja Service Manual / Electrical System / Radiator Fan System

Fan Motor Inspection

If the fan does not rotate, the fan motor is defective and must be replaced.

Fan Motor Inspection


Radiator Fan Circuit

Radiator Fan Circuit


1. ECU

2. Fan Motor

3. Ignition Switch

4. Joint Connector F

5. Fuse Box 1

6. Ignition Fuse 15 A

7. Relay Box

8. Radiator Fan Relay

9. Frame Ground

10. Fuse Box 2

11. Fan Fuse 15 A

12. Starter Relay

13. Main Fuse 30 A

14. Battery

15. Engine Ground

Air Intake Solenoid Valve Unit Test
Remove the air intake solenoid valve (see Air Intake Solenoid Valve Removal in the Fuel System (DFI) chapter). Set the hand tester [A] to the × 1 Ω range and connect it to the air ...

Meter, Gauge, Indicator Unit
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Other materials:

Radiator and Cooling Fan
Check the radiator fins for obstruction by insects or mud. Clean off any obstructions with a stream of low-pressure water. WARNINGThe cooling fan spins at high speed and can cause serious injuries. Keep your hands and clothing away from the cooling fan blades at all times. ...

Crankshaft Sensor Peak Voltage Inspection
Refer to the Crankshaft Sensor Peak Voltage Inspection in the Electrical System chapter. If the reading is within the standard, remove the ECU and check the wiring for continuity between harness connectors. Special Tool - Hand Tester: 57001-1394 Disconnect the ECU and sensor connector ...

Piston Ring Thickness Inspection
Measure the piston ring thickness. Use the micrometer to measure at several points around the ring. Piston Ring Thickness Standard: Top [A] 0.77 0.79 mm (0.0303 0.0311 in.) Second [B] 0.78 0.79 mm (0.0307 0.0311 in.) Service Limit: Top 0.70 mm (0.0276 in.) Second 0.71 mm (0.0280 ...