Intake Filter; Fuel Filter; Fuel Lines - Polaris Frontier Classic Owner's Manual

MAINTENANCE
General Maintenance

Intake Filter

The intake foam filters limit snow ingestion
into the intake system. When operating in
loose powder snow, check the
filters periodically to remove
any accumulation of snow.
1. Airbox foam filter
2. Air intake box
3. Hood foam filters
Operating the snowmobile without the intake filters may cause
throttle body icing and result in poor fuel economy or throttle
body malfunction. Always reinstall the filters before operating.

Fuel Filter

The best way to check the fuel filter is with fuel pressure. If fuel
pressure is low, remove the filter and check pump pressure. If pressure
is still low, the pump may need replacement. See your dealer. But if
the pump pressure is good after removing the filter, then the fuel filter
is plugged and must be replaced. The fuel filter should last the life of
the machine if the fuel used is always of good quality.

Fuel Lines

Inspect the fuel lines regularly. Give special attention to the system's
fuel line condition after periods of storage. Normal deterioration from
weather and fuel compounds may occur.
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.
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CAUTION
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