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Å
ı
CARBURETOR HEATING SYSTEM
6 - 18
EC624000
COUPLERS AND LEADS CONNECTION
INSPECTION
1. Check:
Couplers and leads connection
G
Rust/dust/looseness/short-circuit →
Repair or replace.
THERMO SWITCH INSPECTION
1. Inspect:
Thermo switch operation
G
Faulty operation → Replace.
Inspection steps:
Remove the thermo switch.
G
Connect the pocket tester to the thermo
G
switch coupler as shown.
Tester (+) lead → Black 1
Tester (–) lead → Black 2
Immerse the thermo switch in a container
G
filled with water 3.
Place a thermometer 4 in the water.
G
Slowly heat the water, and then let it cool to
G
the specified temperature as indicated in
the table.
Check the thermo switch for continuity at
G
the temperatures indicated in the table.
Å TT-R90
ı TT-R90E
–
+
ELEC
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