THERMOSTAT (YP125R)
6-4
EAS37P1109
CHECKING THE THERMOSTAT
1. Check:
• Thermostat
Does not open at 70.5–73.5 °C (158.9–164.3
°F) → Replace.
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a. Suspend the thermostat “1” in a container “2”
filled with water.
b. Slowly heat the water “3”.
c. Place a thermometer “4” in the water.
d. While stirring the water, observe the thermo-
stat and thermometer’s indicated tempera-
ture.
IP
If the accuracy of the thermostat is in doubt, re-
place it. A faulty thermostat could cause serious
overheating or overcooling.
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2. Check:
• Thermostat cover
Cracks/damage → Replace.
EAS37P1110
INSTALLING THE THERMOSTAT
1. Install:
• Thermostat
IP
Install the thermostat with its breather hole “a” in
the position shown in the illustration.
2. Fill:
• Cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” on
page 3-18.
3. Check:
• Cooling system
Leaks → Repair or replace any faulty part.
A. Fully closed
B. Fully open
a
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