Ect Sensor Inspection - Honda 2003 NPS50 Ruckus Service Manual

ECT SENSOR INSPECTION

Remove the floor step (page 3-7).
Drain the coolant from the cooling system (page 7-
6) .
Disconnect the ECT sensor connector and remove
the ECT sensor.
Suspend the ECT sensor in a pan of coolant ( 1 :1
Keep all flammable
NOTE:
mixture) on an electric heating element and mea­
materials away
sure the resistance between the ECT sensor termi­
from the electric
nal and body as the coolant heats up.
heating
element. Wear
•
protective clothing,
Soak the ECT sensor in coolant up to its threads
•
insulated gloves
with at least 40 mm (1 .57 in) from the bottom of
and eye protection.
the pan to the bottom of the sensor.
Keep the temperature constant for 3 minutes
before testing. A sudden change of temperature
will result in incorrect reading. Do not let the
thermometer or ECT sensor touch the pan.
Measure the resistance between the ECT sensor ter­
minal and its threads.
Temperature
Resistance
If the resistance is out of above range, replace the
ECT sensor.
Apply sealant to the ECT sensor threads. Do not
apply sealant to the sensor head.
I nstall and tighten the ECT sensor.
TORQUE: 10 N·m (1.0 kgf·m, 7 lbf·ft)
Connect the ECT sensor connector.
Fill and bleed the cooling system (page 7-7).
Install the floor step (page 3-7).
50"C (122"F) 130"C (266"F)
690 860 Q 68 83 Q
LIGHTS/METERS/SWITCHES
ECT SENSOR
1 9- 1 7