Polaris 440 IQ - Manual (Page 75)

72
MAINTENANCE
Exhaust System
Check the exhaust system for wear or damage at approximately 1000
miles (1600 km). To inspect, allow the engine and exhaust system to
cool completely. Open the hood and inspect the muffler and pipes for
cracks or damage. Check for weak or missing retaining springs or
damper/support grommets.
WARNING
Hot exhaust system parts can cause serious burns. Allow
adequate time for the exhaust system to cool. Never perform this
procedure with the engine running.
Engine Cooling
The cooling system on liquid cooled models consists of the following
major components:
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Coolant bottle
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Water pump
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Cylinders
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Heads
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Inlet and outlet manifolds
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Pressure cap
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Heat exchangers