131
PR184A
2. On the 700, secure the oiler cooler to the radiator
with four screws two located on each side.
HDX371A
3. Connect the upper and lower coolant hoses to the
radiator and secure with the appropriate hose clamps;
then connect the cooling fan wire connector to the
main harness.
PR912A
4. Open the high-point bleed screw on the top of the
thermostat cover (700) or coolant outlet pipe (500)
(located under the seat base) to allow trapped air to
escape. Tighten securely after filling.
5. Pour the recommended coolant into the radiator and
secure the radiator cap. Pour coolant into the reser-
voir tank up to the “MIN” marking.
HDX372A
6. Install the front storage box, front fenders, and front
access panel. Close the hood.
7. Start the engine and warm up to operating tempera-
ture. Allow the engine to completely cool; then ver-
ify the coolant level is at the bottom of the stand pipe
in the radiator neck. Add coolant as necessary.
8. Install the front access panel and the weather strip.
THERMOSTAT
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 (700) or thermostat
housing (500). Account for a thermostat with seal.
Inspecting
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. On the 700, the thermostat should start to open at
63.5-66.5° C (146-151° F). On the 500, the thermo-
stat should start to open at 80-84°C (176-183°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 (500) or cylinder head (700); then secure the
thermostat housing cover with the two cap screws.
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 HDX 500 2017
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