Kawasaki Ninja Service Manual: Air Switching Valve (Service Code 64)

Kawasaki Ninja Service Manual / Self-Diagnosis System / Air Switching Valve (Service Code 64)

Air Switching Valve Removal/Installation

Air Switching Valve Inspection

If the air switching valve [A] is normal, check the wiring for continuity (see Air Switching Valve Circuit).

Special Tool - Hand Tester: 57001-1394

If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).

If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Air Switching Valve Inspection


Air Switching Valve Circuit

Air Switching Valve Circuit


1. ECU

2. Air Switching Valve

3. Ignition Switch

4. Joint Connector F

5. Joint Connector A

6. Fuse Box 1

7. Ignition Fuse 15 A

8. Relay Box

9. ECU Main Relay

10. Frame Ground 1

11. Frame Ground 3

12. Starter Relay

13. ECU Fuse 15 A

14. Main Fuse 30 A

15. Battery

16. Engine Ground

Exhaust Butterfly Valve Actuator Resistance Inspection
Turn the ignition switch to OFF. Disconnect the exhaust butterfly valve actuator lead connector (2 pins connector) [A]. Set the hand tester to the × 1 Ω range and connect it to t ...

Oxygen Sensor Heater (Service Code 67, Equipped Models)
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Other materials:

Spring Plate Free Play Measurement
Insufficient clutch free play will cause the engine braking effect to be more sudden, resulting in rear wheel hop. On the other hand, if the free play is excessive, the clutch lever may feel “spongy” or pulsate when pulled. Hold an extra drive shaft in a vise and install the following c ...

Fuel Type
Use clean, fresh unleaded gasoline with a minimum Antiknock Index of 90. The Antiknock Index is posted on service station pumps. The octane rating of a gasoline is a measure of its resistance to detonation or “knocking.” The Antiknock Index is an average of the Research Octane Number (R ...

Premuffler Chamber Removal
Remove: Muffler Body (see Muffler Body Removal) Right Lower Fairing (see Lower Fairing Removal in the Frame chapter) Front Seat (see Front Seat Removal in the Frame chapter) Oxygen Sensor (Equipped Models) (see Oxygen Sensor Removal (Equipped Models) in the Electrical System chapter ...