Yamaha FZS1000N, Service Manual

Page: 368 / 394

8-45
COOLING SYSTEM
ELEC
Thermo unit
15 Nm (1.5 m
S
kg, 11 ft
S
lb)
Three bond sealock

10
YES
NO
7. Wiring
S
Check the entire cooling system’s wiring.
Refer to “CIRCUIT DIAGRAM”.
Properly connect or
repair the cooling
system’s wiring.
YES NO
Replace the thermo
unit.
S
Does the thetmo unit operate properly?
EAS00813
This circuit is OK.
Termo unit resistance
80
_
C (176
_
F): 3.41
X
4.00
Ω
105
_
C (221
_
F): 1.65
X
1.86
Ω
S
Handle the termo unit with special care.
S
Never subject the thermo unit to strong
shocks. If the thermo unit is dropped, re-
place it.
WARNING
5. Thermo unit
S
Remove the thermo unit from the thermostat
housing.
S
Connect the pocket tester (
Ω
1) to the ter-
mo unit as shown.
S
Immerse the termo unit in a container filled
with coolant
.
1
EAS00812
2
3
Make sure the termo unit terminals do not
get wet.
NOTE:
S
Place a thermometer in the coolant.
S
Slowly heat the coolant, and then let it cool
to the specified temperature indicated in the
table.
S
Check the thermo unit for continuity at the
temperatures indicated in the table.
S
Is the cooling system’s wiring properly con-
nected and without defects?
NO YES
S
Does the fan motor relay have continuity be-
tween brown and blue?
Replace the fan mo-
tor relay.
S
Disconnect the fan motor relay coupler from
the wire harness.
S
Connect the pocket tester (
Ω
1) and bat-
tery (12 V) to the fan mtor relay coupler as
shown.
6. Fan motor relay
EAS00759
Positive battery terminal
!
brown
Negative battery terminal
!
green / black
1
2
Positive tester probe
!
brown
Negative tester probe
!
blue
3
4