Air Filter Cleaning & Replacement Guide for 2022 KTM 150SX

Shop parts for a 2022 KTM 150SX Dirt Bike.

The 2022 KTM 150SX stands out for its race-ready power and lightweight handling, making regular air filter maintenance a crucial part of keeping your bike at peak performance. Unique to the 2022 model, the air filter is easily accessible without tools due to KTM's innovative design, allowing for quick service between rides and races. Owners should regularly inspect, clean, and oil the air filter to protect the engine from dirt and dust, ensuring consistent power delivery and engine reliability.

Accessing the Air Filter

  • The 2022 KTM 150SX features a single long seat bolt on the right-hand side. Remove this bolt and slide the seat back to access the air filter housing. No other tools are required to remove the seat or air filter cover.
  • The air filter is held in place by a cage and tabs inside the airbox for quick release and reinstallation. Always check that the filter is seated properly for maximum sealing.

Cleaning the Air Filter

  • Remove the filter from the cage by releasing the holding tabs. Carefully detach the filter to avoid letting dirt into the air intake.
  • Tap the filter gently to remove loose dirt, then wash thoroughly with specific air filter cleaning liquid. Avoid using gasoline or harsh solvents, as these may degrade the foam.
  • After washing, gently press (do not wring) the filter to remove excess cleaning solution and set it aside to dry completely.

Oiling the Air Filter

  • Once the filter is dry, apply a uniform layer of air filter oil specifically designed for foam filters. Massage the oil in thoroughly to ensure full coverage but avoid oversaturating.
  • For biodegradable or standard oils, use the matching cleaner and oil system as noted in your KTM manual. If unsure of previous oil type, start with a fresh, clean filter.

Reinstallation & Maintenance Tips

  • Reinstall the oiled filter onto the cage and secure it in the airbox, making sure the edges seal tightly with no gaps.
  • Reattach the air filter cover and slide the seat back in place, securing the single seat bolt.
  • Inspect the filter after every ride in dusty or wet conditions. Replace the filter if it shows tears, wear, or persistent discoloration.

Specific Notes for the 2022 KTM 150SX

  • On the 2022 model, the air filter design supports no-tool removal for both seat and air filter cover, streamlining pit-stop maintenance.
  • The stock filter is compatible with leading air filter oils and is built to balance airflow and particle filtration – ensure you use products designed for high-performance two-strokes for best results.

KTM recommends proper air filter maintenance as a critical part of the 150SX's regular service schedule. Keeping up with cleaning and oiling helps preserve the life of this high-performance two-stroke engine for more hours of power and fun on the track.

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Disclaimer: This guide is provided for general informational purposes only and is not intended to replace your motorcycle's official owner's manual. Always refer to your manufacturer's documentation for model-specific instructions, torque specifications, safety procedures, and maintenance requirements. If you are unsure or inexperienced, consider seeking assistance from a qualified mechanic or technician.