Cooling System; Exhaust System - Polaris 550 Indy 144 Owner's Manual

MAINTENANCE
Fuel Filter/Fuel Lines
See your POLARIS dealer for replacement of the fuel filter at the
intervals outlined in the Periodic Maintenance Table beginning on page
65.
Contaminated or poor quality fuel will shorten the life of the fuel filter
and result in poor engine performance. Always store fuel in clean fuel
containers. If low fuel pressure or reduced engine performance occurs
between the recommended fuel filter service intervals, the filter may
need replacement. See your dealer.
Inspect the fuel lines regularly for signs of deterioration or damage.
Always check fuel line condition after periods of storage. Normal
deterioration from weather and fuel compounds may occur. Replace
worn or damaged fuel lines promptly.
NOTICE: Kinking the fuel lines or using a pliers or similar tools to remove fuel
lines may cause damage to the lines. If a fuel line has been damaged
or kinked, replace it promptly.

Cooling System

Inspect the fan intake and outlet ducts for cracks, blockage,
obstructions, damaged seals or loosening of the ducts. Make any
necessary repairs promptly.

Exhaust System

Check the exhaust system for wear or damage at approximately 2000
miles (3200 km). Always allow the engine and exhaust system to cool
completely before inspecting.
CAUTION! Hot exhaust system parts can cause burns. Allow adequate time for
the exhaust system to cool. Never perform this procedure with the engine
running.
1. Open the side panels and remove the hood. See page 68.
2. Inspect the muffler and pipes for cracks or damage.
3. Check for weak or missing retaining springs or damper/support
grommets.
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