HYOSUNG Aquil GV650, Service Manual

Page: 117 / 222

ENGINE COOLANT TEM-
PERATURE SENSOR
◉
REMOVAL
● Drain engine coolant. (Refer to page 2-24)
● Remove the seat. (Refer to page 7-1)
●
Remove the fuel tank. (Refer to page 4-1)
● Remove the carburetor. (Refer to page 4-4)
● Disconnect the engine coolant temperature sensor
lead wire coupler.
● Place a rag under the sensor and remove the engine
◉
INSPECTION
●
Check the engine coolant temperature by testing it at
the bench as shown in the figure. Connect the tem-
perature sensor
① to a circuit tester and place it in
the WATER contained in a pan, which is placed on a
stove.
● Heat the water to raise its temperature slowly and
read the column thermometer
②
and the ohmmeter.
5-7 COOLING SYSTEM
Temperature sensor specification
Temperature
60
℃
85
℃
110
℃
125
℃
Standard resistance
Approx. 125 Ϊ
Approx. 48.5
Ϊ
Approx. 24 Ϊ
Approx. 15
Ϊ
If the resistance noted to show infinity or too much dif-
ferent resistance value, replace the temperature sensor
with a new one.
Multi circuit tester set : 09900-25008
CAUTION
● ●
Take special care when handling the tempera-
ture sensor. It may cause damage if it gets a
sharp impact.
● ●
Do not contact the engine coolant temperature
sensor
① ①
and the column thermometer
② ②
with
a pan.
◉
INSTALLATION
● Tighten the engine coolant temperature sensor to the
specified torque.
Engine coolant temperature sensor
: 18 N
∙ ∙
m (1.8 kg
∙ ∙
m)
●
Pour engine coolant. (Refer to page 2-24)
● Bleed air from the cooling circuit. (Refer to page 2-25)
Water
①
②
①