Yamaha FZS600'98 Service Manual page 344

EB802017
5. Thermo switch (fan, engine temperature)
S Remove the thermo switch from the thermo-
static valve housing.
S Connect the pocket tester (Ω
thermo switch 1 .
S Immerse the thermo switch in coolant
S Check the thermo switch for continuity.
While heating the coolant use a thermome-
ter to record the temperatures.
3
Water temperature
Test
step
Thermo switch
0 X 105_C
1
2 More than 105_C
3* 105 to 98_C
4* Les than 98_C
Tests 1 & 2; Heat-up tests
Tests 3* & 4*; Cool-down tests
f: Continuity
98_C
A THERMO SWITCH "ON"
B
THERMO SWITCH "OFF"
:
1) to the
2 .
Good
condition

f
f

: No continuity
105_C
GOOD
CONDITION
:
COOLING SYSTEM
Handle the thermo switch with special care.
Never subjct it to strong shocks or allow it to
be dropped. Should it be dropped, it must be
replaced.
BAD CONDITION
Replace the thermo switch.
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