650 - 650NK - Techinical Service Manual.pdf - Mojo Motorcycles

3-42 FUEL SYSTEM (EFI)
Water Temperature Sensor
Water Temperature Sensor Removal/Installation
• Drain the coolant (see Coolant Change in the Periodic
Maintenance chapter).
• Disconnect the sensor connector [A], and unscrew
the water temperature sensor [B].
Torque - Water Temperature Sensor: 12 N m (1.
2 kgf m, 106 in lb)
• Apply grease to new O-ring on the water temperature
sensor.
• Fill the engine with coolant and bleed the air from
the cooling system (see Coolant Change in the Periodic
Maintenance chapter).
Water Temperature Sensor Output Voltage
Inspection
NOTE
Be sure the battery is fully charged.
• Remove the ECU (see ECU Removal). Do not disconnect
the connectors.
• Connect a hand tester [A] to the ECU connector [B]
with the needle adapter set.
• Measure the sensor output voltage with the
engine stopped and the connector joined.
• Turn the ignition switch ON.
Water Temperature Sensor Output Voltage
Hand tester(+) Gr/W lead(ECU terminal 29)
Hand tester(-) L/G lead(ECU terminal 27)
Standard: 2.5~3.5 V (20°C)