4-11
4
Thermostat (XT/XTX)
REMOVING
1. Drain approximately one quart of coolant from the
cooling system.
2. Remove the two cap screws securing the thermostat
housing to the cylinder head. Account for a thermo-
stat with seal.
INSPECTING
NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Inspect the thermostat for corrosion, wear, or spring
damage.
2. Using the following procedure, inspect the thermo-
stat for proper operation.
A. Suspend the thermostat in a container filled with
water.
B. Heat the water and monitor the temperature with a
thermometer.
C. The thermostat should start to open at 71.0-86.0°
C (160-187° F).
D. If the thermostat does not open, it must be
replaced.
3. Inspect all coolant hoses, connections, and clamps
for deterioration, cracks, and wear.
NOTE: All coolant hoses and clamps should be
replaced every four years or 4000 miles.
INSTALLING
1. Place the thermostat with seal into the thermostat
housing; then secure the thermostat housing to the
cylinder head with the two cap screws.
PR281A
2. Fill the cooling system with the recommended
amount of antifreeze. Check for leakage.
Thermostat (XTZ)
REMOVING
NOTE: The thermostat is located in a housing
in-line with the upper radiator hoses under the air fil-
ter housing.
GZ036A
1. Drain approximately one quart of coolant from the
cooling system.
2. Remove the four machine screws securing the ther-
mostat housing together. Remove the thermostat and
account for an O-ring.
INSPECTING
NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
1. Inspect the thermostat for corrosion or spring dam-
age.
2. Using the following procedure, inspect the thermo-
stat for proper operation.
A. Suspend the thermostat in a container filled with
water.
B. Heat the water and monitor the temperature with a
thermometer.
C. The thermostat should start to open at 71.0-86.0°
C (160-187° F).
D. If the thermostat does not open, it must be
replaced.
3. Inspect all coolant hoses, connections, and clamps
for deterioration, cracks, and wear.
NOTE: All coolant hoses and clamps should be
replaced every four years or 4000 miles.
CAUTION
When installing the thermostat, make sure the bleed
holes are straight up and down or air will remain
trapped causing engine damage due to overheating.
Summary of Contents for 2013 Prowler XT
Page 1: ...Prowler XT XTX XTZ ...
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Page 149: ...4 16 NOTES ...
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Page 233: ... Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2259 530 ...