Air Filter Cleaning – Replacement Guide for 2016 Yamaha YZ85

Shop parts for a 2016 Yamaha YZ85 Dirt Bike.

The 2016 Yamaha YZ85 is a high-revving, two-stroke dirt bike that demands routine maintenance to keep its legendary performance and responsiveness. One of the most critical tasks you can perform routinely is cleaning and replacing the air filter. The right technique ensures maximum engine protection, consistent throttle response, and peak power delivery unique to this model.

How to Access the Air Filter

  • Start by removing the seat. On the 2016 YZ85, the seat is secured with bolts – use a socket wrench to remove these, then lift off the seat.
  • Locate the number side panel and pull it back to reveal the airbox.
  • The air filter is held in place by a wing nut inside the airbox. Unscrew the wing nut and carefully remove the filter element (wear gloves: filter oil is sticky).

Cleaning the Air Filter

  • Inspect the filter for damage or excessive wear. If there are tears or thin spots, replace with a genuine Yamaha air filter for optimal fit and protection.
  • To clean a reusable foam filter, first gently tap or brush off loose dirt and debris.
  • In a clean bucket, immerse the filter in a dedicated foam air filter cleaner. Massage the cleaner through the foam but never wring or twist the filter—twisting can tear the filter structure, exposing your engine to dirt.
  • Rinse in warm water until all cleaning agent and dirt is gone. Gently squeeze out water, then allow the filter to air dry completely, or use a clothes dryer set to low heat for faster drying.

Oiling the Filter

  • When completely dry, apply Yamaha-approved filter oil (preferably from a bottle, not aerosol) thoroughly. Massage the oil into the foam until uniformly coated, ensuring no dry spots remain.
  • Do not over-oil, but every part of the filtering surface should be tacky to the touch.
  • Apply a thin bead of lithium soap-based grease around the filter lip for an absolute air-tight seal when reinstalling.

Reinstallation

  • Place the cleaned and oiled filter into the airbox, center the mounting hole, and secure with the wing nut.
  • Make sure the filter sits flush against the airbox seal – gaps allow debris to enter and cause engine damage.
  • Reinstall the side panel and seat. Double-check that all bolts are tight before riding.

Replacement Recommendations – Model-Specific Advice

  • The YZ85 is often ridden in dusty, muddy, and sandy conditions, which saturate the filter faster than casual trail bikes. For this model, inspect and clean the filter after every ride in harsh conditions, or every 2-3 rides in milder terrain.
  • Always use quality foam air filters and Yamaha-specific filter oil for best protection and compatibility.
  • A fresh air filter promotes the crisp throttle and strong mid-range hit this engine is known for. Ignoring air filter maintenance will cause accelerated wear, poor performance, and even engine failure in these high-revving two-strokes.

Pro Tips for 2016 Yamaha YZ85 Owners

  • Keep a spare air filter ready – switching to a clean filter before each ride gives the best performance and protection.
  • After cleaning, always inspect the intake boot for signs of dust or dirt. Any grit inside the boot indicates an improper filter seal – address immediately.
  • Use gloves, as filter oil is notoriously sticky and difficult to clean off skin.
  • For racing, consider high-flow, double-layer performance filters for increased airflow with maximum protection.

Routinely cleaning and replacing the air filter on your YZ85 helps guarantee the explosive power, reliability, and engine longevity this bike is built to deliver. For all genuine Yamaha air filter replacements and cleaning products, Shop parts for a 2016 Yamaha YZ85 Dirt Bike.

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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.