Checking The Thermostat; Installing The Thermostat - Yamaha YZF-R6 99 Service Manual

84
Temperature
THERMOSTAT
EAS00462

CHECKING THE THERMOSTAT

1. Check:
S thermostat 1
Does not open at 71
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 thermo-
stat and thermometer's indicated tempera-
ture.
1 Thermostat
2 Thermometer
3 Water
4 Container
A Fully closed
B Fully opens
NOTE:
If the accuracy of the thermostat is in doubt, re-
place it. A faulty thermostat could cause serious
overheating or overcooling.
2. Check:
S thermostat housing cover
S thermostat housing
Cracks/damage ! Replace.
EB00467

INSTALLING THE THERMOSTAT

1. Install:
NOTE:
Install the thermostat with its breather hole a
facing up.
2. Install
S thermostat cover
NOTE:
Befor installing the thermostat cover to the cyl-
inder head, lubricate the O-ring with a thin coat
of litium soap base grease.
5-11
COOL
84_C ! Replace.
10 Nm (1.0 mSkg)