- Oxygen Sensor #1: Service Code 94
- Oxygen Sensor #2: Service Code 95
Oxygen sensor removal/installation
Refer to Oxygen sensor removal and installation in the Electrical System chapter.
Oxygen sensor inspection
Note. The oxygen sensor itself is the same for #1 [A] and #2 [B], but wiring of the main harness side is different.
![](https://motoinstruction.ru/img/kawasaki/13/118807.jpg)
Warm up the engine thoroughly.
Turn the ignition switch OFF.
Remove the right side cover (see Right side cover removal in the Frame chapter).
Connect a digital voltmeter [A] to the each oxygen sensor connector [B] (sensor side), using the needle adapter set.
![](https://motoinstruction.ru/img/kawasaki/13/118808.jpg)
- Special Tool - Needle Adapter Set: 57001-1457
Oxygen sensor output voltage:
Connections to oxygen sensor connector:
- Meter (+) → BK lead
- Meter (-) → GY lead
Remove the air switching valve hoses [A] (both sides) from the fittings.
![](https://motoinstruction.ru/img/kawasaki/13/118809.jpg)
Install the suitable plugs [A] (both sides) on the fittings and shut off the secondary air.
![](https://motoinstruction.ru/img/kawasaki/13/118810.jpg)
Turn the ignition switch ON.
Start the engine, and let it idle.
Measure the output voltage of the sensor with the connector joined.
Oxygen sensor output voltage (with plugs):
- Standard: 0.45-2.5 V
Next, remove the plugs [A] (both sides) from the fittings with idling.
![](https://motoinstruction.ru/img/kawasaki/13/118811.jpg)
Measure the output voltage of the sensor with the connector joined.
Oxygen sensor output voltage (without plugs):
- Standard: 0.05-0.45 V
★ If the reading is within range (with plugs: 0.45-2.5 V, without plugs: 0.05-0.45 V), the oxygen sensor is good.
★ If the reading is without range, inspect the engine and fuel supply system.
★ If the engine and fuel supply system good, replace the oxygen sensor.
Remove the needle adapter set, and apply silicone sealant to the seals of the connector for waterproofing.
- Sealant - Kawasaki Bond (Silicone Sealant): 56019-120
Oxygen sensor circuit
![](https://motoinstruction.ru/img/kawasaki/13/118812.jpg)
1. ECU; 2. Oxygen Sensor #1; 3. Oxygen Sensor #2; 4. Oxygen Sensor Heater Fuse 10 A; 5. Main Fuse 30 A; 6. Starter Relay; 7. Battery; 8. Joint Connector C; 9. Frame Ground; 10. Joint Connector B