Can-Am DS 450 2008, Shop Manual

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Section 03 ENGINE
Subsection 05 (COOLING SYSTEM)
Lift the radiator to disengage the bottom pin and
tilt the top of radiator to reach cooling fan screws.
Remove and discard screws securing cooling fan
to radiator.
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1. Long screw (M6 x 20)
2. Short screws (M6 x 12)
Cooling Fan Installation
For the installation, reverse the removal proce-
dure.
CAUTION: To avoid damaging radiator fins
when tightening screws, position the long
screw in the LH upper hole.
THERMOSTAT
The thermostat is a single action type.
Thermostat Removal
The thermostat is located on the LH side of engine
inside a plastic housing.
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Partially drain coolant until approximately 1 L
(1 quart) flowed out. Refer to
COOLANT RE-
PLACEMENT
.
Cut Oetiker clamps.
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Pull out thermostat housing. Catch spilled
coolant.
Thermostat Test
To check thermostat, put housing in water and
heat water. Thermostat should begin to open
when water temperature reaches 75°C (167°F).
If the thermostat is defective, always replace it
with a
NEW one.

WARNING
When the thermostat housing is opened, its
watertightness is greatly affected under pres-
sure and a leak can cause severe burns.
Thermostat Installation
For installation, reverse the removal procedure.
Install NEW clamps using Oetiker pliers.
Refill coolant tank.
COOLANT TEMPERATURE
SENSOR (CTS)
The coolant temperature sensor is located on the
cylinder head, spark plug side.
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