Air Filter Cleaning – Replacement Guide for 2015 Husqvarna TC85

Shop parts for a 2015 Husqvarna TC85 Dirt Bike.

Keeping your 2015 Husqvarna TC85’s air filter in prime condition is essential for optimal engine performance and durability. The air filter prevents dirt, sand, and debris from reaching the engine, preserving horsepower and longevity. This guide by MotoSport walks you through cleaning and replacement tailored to the 2015 TC85, while noting specifics about this model and its maintenance needs.

About the 2015 Husqvarna TC85 Air Filter

  • Type: Foam, dual-stage (two-layer) for maximum airflow and filtration
  • Location: Mounted inside factory air box, accessible by removing the air box cover
  • Size: Approximately 7.75 in (197 mm) length & 6.938 in (176 mm) width for OEM filter

The TC85’s air box is designed for riding in tough motocross and trail conditions, so filter maintenance is especially important — dirty filters restrict airflow, lowering performance and risking engine damage.

Cleaning the Air Filter

  1. Remove the seat and then the air box cover to access the filter.
  2. Carefully remove the foam filter, taking care not to drop debris into the air box.
  3. Inspect the filter for damage (tears, hardening) — if compromised, replace immediately.
  4. If reusable, submerge the filter in a dedicated foam air filter cleaner. Gently squeeze (do not wring) to release debris and old oil.
  5. Rinse thoroughly until water runs clear. For best results, repeat cleaning and let it dry completely.
  6. Once dry, apply air filter oil evenly. Use the recommended oil amount for your specific filter, making sure it’s saturated but not dripping.
  7. Reinstall the filter, making sure it seals tightly against the filter box. Clean excess oil from sealing surfaces.

Tip: The 2015 TC85’s dual-stage foam filters are prone to absorbing extra fine dust, even when dry conditions prevail. Always inspect for hidden dust around edges and seams after every race or long ride.

Replacing the Air Filter

  • Choose OEM or high-quality aftermarket filters designed for the 2015 TC85, ensuring fitment for the unique air box shape.
  • Direct replacement filters fit into the original air box without modification.
  • MotoSport recommends always keeping a spare filter ready so you can swap immediately if the installed filter shows excessive wear or damage.
  • When installing a new filter, fully oil and seat it before riding – dry or improperly sealed filters can allow unfiltered air into the engine.

Model-Specific Notes: The 2015 TC85’s filter box assembly uses plastic tabs and a tight seal. Avoid overtightening or forcing covers, as tabs may crack or misalign, affecting the seal quality. Always check after installation that no gap remains between the filter and the air box surface.

Maintenance Schedule for the 2015 TC85

  • Clean or replace the air filter after every race or every 2-3 rides if riding in moderate dust/mud
  • Inspect filter after any water crossing; wet filters must be cleaned and re-oiled ASAP
  • Check filter seal and air box for dirt after each ride

Expert Recommendations

  • Keep a spare pre-oiled filter on hand for quick swaps
  • Use only high-quality air filter oil designed for foam filters
  • Never run the engine with a dry or dirty filter – premature wear is guaranteed

Proper cleaning and timely replacement of your Husqvarna’s air filter protect your investment and maximize performance. For TC85-specific filters, components, and racing upgrades, rely on MotoSport to keep your ride at its best.

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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.