Oxygen Sensor Removal/Installation
- Refer to the Oxygen Sensor Removal/Installation in the Electrical System chapter.
Oxygen Sensor Inspection
- Warm up the engine thoroughly until the radiator fan starts.
- Turn the ignition switch OFF.
- Disconnect the oxygen sensor connector and connect the harness adapter [A] between these connectors.
![](https://motoinstruction.ru/img/kawasaki/23/128302.jpg)
Special Tool - Oxygen Sensor Measuring Adapter: 57001 -1682
- Connect a digital meter to the harness adapter lead.
Oxygen Sensor Output Voltage
Connections to Adapter
- Meter (+) → BL/Y (sensor BL) lead
- Meter (-) → BR/BK (sensor W) lead
- Remove the air switching valve hose from the fitting.
- Install the suitable plug [A] on the fitting [B] and shut off the secondary air.
![](https://motoinstruction.ru/img/kawasaki/23/128303.jpg)
- Turn the ignition switch ON.
- Start the engine, and let it idle.
- Measure the output voltage with the connector joined.
Oxygen Sensor Output Voltage (with Plugs)
Standard: 0.7 V or more
- Next, remove the plugs from the fitting [A] with idling
![](https://motoinstruction.ru/img/kawasaki/23/128304.jpg)
- Measure the output voltage with the connector joined.
Oxygen Sensor Output Voltage (without Plugs)
Standard: 0.2 V or less
If the reading is within range (with plugs: 0.7 V or more, without plugs: 0.2 V or less), the oxygen sensor is good.
If the reading is without range, replace the oxygen sensor (See Oxygen Sensor Removal/Installation in the Electrical System chapter).
Oxygen Sensor Circuit
![](https://motoinstruction.ru/img/kawasaki/23/128305.jpg)
1. ECU; 2. Oxygen Sensor; 3. Water-proof Joint E; 4. Water-proof Joint C; 5. Oxygen Sensor Heater Fuse 10 A; 6. Main Fuse 30 A; 7. Battery; 8. Frame Ground; 9. Joint Connector