
7 - 44
– +
ELEC
CARBURETOR HEATING SYSTEM
EAS00823
YES
NO
4. Thermo switch
• Remove the thermo switch from the wire
harness.
• Connect the pocket tester (
Ω
×
1) to the
thermo switch
1
as shown.
• Immerse the thermo switch in a container
filled with water
2
.
• Place a thermometer
3
in the water.
• Slowly heat the water, then let it cool down
to the specified temperature.
• Check the thermo switch for continuity at
the temperatures indicated below.
È
The thermo switch circuit closed.
É
The thermo switch circuit open.
Test step Water temperature
Continu-
ity
1
Less than 16
±
3 °C
(60.8
±
5.4 °F)
YES
2
More than 16
±
3 °C
(60.8
±
5.4 °F)
NO
3
More than 11
±
3 °C
(51.8
±
5.4 °F)
NO
4
Less than 11
±
3 °C
(51.8
±
5.4 °F)
YES
Steps 1 & 2: Heating phase
Steps 3 & 4: Cooling phase
WARNING
_
• Handle the thermo switch with special
care.
• Never subject the thermo switch to
strong shocks. If the thermo switch is
dropped, replace it.
• Does the thermo switch operate properly?
Replace the thermo
switch.
1
2
Ω × 1
3
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