Yamaha YFM45FAR Service Manual page 386

6.Thermo switch 2
Remove the thermo switch 2 from the
G
radiator.
Connect the pocket tester (Ω × 10) to the
G
thermo switch 2 1.
Immerse the thermo switch 2 in coolant 2.
G
Check the thermo switch 2 for continuity.
G
While heating
3
thermometer
temperatures.
Coolant temperature
Test
step
Thermo switch 2
Less than 86 ± 3 °C
1
(186.8 ± 5.4 °F)
More than 86 ± 3 °C
2
(186.8 ± 5.4 °F)
More than 80 ± 3 °C
3
(176 ± 5.4 °F)
Less than 80 ± 3 °C
4
(176 ± 5.4 °F)
Test steps 1 & 2: Heating phase
Test steps 3 & 4: Cooling phase
È The thermo switch 2 circuit is open and the
radiator fan is off.
É The thermo switch 2 circuit is closed and the
radiator fan is on.
WARNING
Handle the thermo switch 2 with special
care.
Never subject it to a strong shock or
allow it to be dropped. Should it be
dropped, it must be replaced.
Thermo switch 2:
28 Nm (2.8 m • kg, 20 ft • lb)
Three bond sealock
*
C0NTINUITY
the coolant use
to record
Continuity
NO
YES
YES
NO
®
#10
GOOD
CONDITION
*
COOLING SYSTEM
a
the
(176 ± 5.4 ˚F)
BAD CONDITION
Replace the thermo switch 2.
9 - 41
ELEC
É
È
80 ± 3 ˚C 86 ± 3 ˚C
(186.8 ± 5.4 ˚F)
– +