Polaris Tech Tip: How to Inspect Your Polaris UTV/ATV Air Filter and Intake

Tech Tip: How to Inspect Your Polaris UTV/ATV Air Filter and Intake

Off-road riding is a dusty business. Whether you are following a group through the desert or working on a dry farm, your engine is constantly fighting to breathe. A clogged air filter reduces power and fuel economy, but a compromised intake tract can lead to "dusting"—where fine silt enters the combustion chamber and destroys your piston rings and cylinder walls.

Step 1: The Visual Filter Check

Open your airbox and remove the filter. In many Polaris models, this is a pleated paper element designed to trap microscopic particles.

• The Sunlight Test: Hold the filter up to a bright light or the sun. If you cannot see light passing through the pleats, the filter is packed with dust and needs replacement.
• Check the Seal: Inspect the rubber gasket at the end of the filter. If it is cracked, dry-rotted, or flattened, unfiltered air is leaking past the filter directly into your engine.
• Don't Blow it Out: Never use compressed air to "clean" a paper filter. This creates microscopic holes in the paper that allow dust to pass through. Replace it with a Genuine Polaris OEM Air Filter.

Step 2: Inspecting the "Clean Side" of the Intake

This is the most critical part of the inspection. Look inside the intake tube after the filter (the side leading to the throttle body).

• The Finger Swipe: Run a clean, white-gloved finger (or a clean cloth) along the inside of the intake boot.
• The Result: The intake should be 100% spotless. If you see even a fine "haze" of dust or a "muddy" oily residue, your intake system is leaking. You must identify where the dust is entering immediately.

Step 3: Checking Intake Boots and Clamps

Rubber boots can vibrate loose or crack over time due to engine heat and trail vibration.

• Tightness Check: Ensure all hose clamps between the airbox and the engine are tight.
• Crack Inspection: Squeeze the rubber intake boots. If you see "weather checking" or small cracks in the rubber, they can open up under high vacuum and suck in trail dust.

Pro Tip: Pre-Filter Maintenance

If your machine has a foam pre-filter or a "Frogzskin" mesh over the intake vents, keep them clean. These catch the "big stuff" (leaves, sand, dog hair) and extend the life of your expensive main Polaris OEM & Aftermarket UTV & ATV Air Filters & Air Filter Oils. A clean engine is a long-lasting engine!

Protect your ProStar engine from the elements. Shop Witchdoctors.com for OEM Polaris air filters, intake boots, and airbox seals today!

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