Yamaha Royal Star Tour Deluxe XVZ13CTTC Supplementary Service Manual page 64

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EAS00811
6. Thermo switch 1
• Remove the thermo switch 1 from the ther-
mostat housing.
• Connect the pocket tester (Ω × 1) to the
thermo switch 1 1 as shown.
• Immerse the thermo switch 1 in a con-
tainer filled with coolant 2.
• Place a thermometer 3 in the coolant.
• Slowly heat the coolant, and then let it cool
down to the specified temperature.
• Check the thermo switch 1 for continuity at
the temperatures indicated below.
Coolant temperature
Test
step
Thermo switch 1
Less than 110 ± 3 °C
1
(230 ± 5.4 °F)
More than 110 ± 3 °C
2
(230 ± 5.4 °F)
More than 103 °C
3
(217.4 °F)
Less than 103 °C
4
(217.4 °F)
Steps 1 & 2: Heating phase
Steps 3 & 4: Cooling phase
WARNING
• Handle the thermo switch 1 with special
care.
• Never subject the thermo switch 1 to
strong shocks. If the thermo switch 1 is
dropped, replace it.
Thermo switch 1
8 Nm (0.8 m · kg, 5.8 ft · lb)
COOLING SYSTEM
• Does the thermo switch 1 operate prop-
erly?
EAS00813
7. Wiring
• Check the entire cooling system's wiring.
Refer to "CIRCUIT DIAGRAM".
• Is the cooling system's wiring properly
connected and without defects?
This circuit is OK.
Continu-
ity
NO
YES
YES
NO
– 57 –
ELEC
YES
Replace the thermo
switch 1.
YES
Properly connect or
repair
the
system's wiring.
+
NO
NO
cooling

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