Checking The Thermostat; Installing The Thermostat - Yamaha XP500 Service Manual

a
THERMOSTAT
EAS00462

CHECKING THE THERMOSTAT

1. Check:
• thermostat
Does not open at 69 ~ 73 °C (156.2 ~
163.4 °F) → Replace.
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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.
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1 Thermostat
2 Thermometer
3 Water
4 Container
È Fully closed
É Fully opens
NOTE:
If the accuracy of the thermostat is in doubt,
replace it. A faulty thermostat could cause seri-
ous overheating or overcooling.
2. Check:
• thermostat cover
• thermostat housing (cylinder head)
Cracks/damage → Replace.
EAS00467

INSTALLING THE THERMOSTAT

1. Install:
• thermostat
• thermostat cover
NOTE:
NOTE:
Install the thermostat with its breather hole a
facing forward.
2. Install:
• copper washer
• coolant temperature sensor
6 - 7
COOL
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10 Nm (1.0 m · kg, 7.2 ft · lb)
New
18 Nm (1.8 m · kg, 13 ft · lb)
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