Yamaha SRX700D, Service Manual

Page: 402 / 497

8-18
– +
ELEC
SIGNAL SYSTEM
SDN8300
SDN8310
WATER TEMPERATURE SENSOR
1. Disconnect the water temperature sensor cou-
pler and remove the water temperature sen-
sor.
CAUTION:
Handle the water temperature sensor with spe-
cial care. Never subject it to shock or allow it to be
dropped. If it is dropped, it must be replaced.
2. Connect:
•
Pocket tester 1
(to the water temperature sensor)
NOTE:
Set the tester selector to the “
Ω
x 1” position.
3. Immerse the water temperature sensor 2 in
coolant
3
and check the water temperature
sensor operation.
Water temperature sensor resistance:
2.21 ~ 2.70 k
Ω
at 20
°
C (68
°
F)
1.03 ~ 1.26 k
Ω
at 40
°
C (104
°
F)
0.52 ~ 0.65 k
Ω
at 60
°
C (140
°
F)
0.29 ~ 0.35 k
Ω
at 80
°
C (176
°
F)
0.17 ~ 0.21 k
Ω
at 100
°
C (212
°
F)
4
Temperature gauge
CAUTION:
Never heat the coolant to a temperature of 120˚C
(248.5˚F) or more.
4. If the water temperature sensor operation is
defective, replace it.
5. Install the water temperature sensor and con-
nect the water temperature sensor lead.
Water temperature sensor:
23 Nm (2.3 m • kg, 17 ft • lb)
CAUTION:
Do not overtighten the water temperature sen-
sor.
T
R
.
.