Yamaha XF50W - Checking the Thermostat

THERMOSTAT
EAS00462
CHECKING THE THERMOSTAT
1. Check:
• thermostat (T)
Does not open at 85 ~100°C (185 ~212°F)
-» Replace.
•••••••••••••••••••••••
a. Suspend the thermostat in a container filled
with water.
b. Slowly heat the water.
c. Place a thermometer in the water.
d. While stirring the water, observe the ther-
mostat and thermometer’s indicated tem-
perature.
•••••••••••••••••••••••
m
i
^ '
i
m^^^^r
\
3.5mm
(0.14 in)
I
85±2 C
(185±3.6 F)
100 C
(212 F)
© Thermostat
(2) Container
(3) Thermometer
(4) Water
A Fully closed
B Fully open
NOTE:
If the accuracy of the thermostat is in doubt, re-
place it. A faulty thermostat could cause seri-
ous overheating or overcooling.
2. Check:
• thermostat cover
Cracks/damage -» Replace.
3. Check:
• thermostat inlet hose
• thermostat outlet hose
Cracks/damage -» Replace.
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