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:

Drive Chain Lubrication Condition Inspection
If a special lubricant is not available, a heavy oil such as SAE 90 is preferred to a lighter oil because it will stay on the chain longer and provide better lubrication. If the chain appears especially dirty, clean it before lubrication. NOTICE The O-rings between the side plates seal ...

Oil Cooler Removal
Remove: Coolant (Drain, see Coolant Change in the Periodic Maintenance chapter) Engine Oil (Drain, see Engine Oil Change in the Periodic Maintenance chapter) Lower Fairings (see Lower Fairing Removal in the Frame chapter) Water Hose Ends [A] (Disconnect) Remove: Oil Cool ...

Chain Slack Inspection
Set the motorcycle up on its side stand. Rotate the rear wheel to find the position where the chain is tightest, and measure the maximum chain slack by pulling up and pushing down the chain midway between the engine sprocket and rear wheel sprocket. A. Chain Slack If the ...