Air Filter Cleaning – Replacement Guide for 2019 Yamaha TTR110

Shop parts for a 2019 Yamaha TTR110 Dirt Bike.

The air filter in your 2019 Yamaha TTR110 is essential for protecting your engine from dirt and debris while delivering the performance you expect on every ride. Routine maintenance ensures your dirt bike keeps running at its best, especially if you ride in dusty or wet conditions, which require more frequent cleaning and replacement of the air filter element.

Why Clean or Replace the Air Filter?

A clogged or damaged air filter restricts airflow, reduces performance, and allows harmful particles to enter the engine, causing premature wear. Keeping your air filter clean – or replacing it when needed – is one of the easiest and most effective maintenance tasks you can perform to extend the life of your TTR110 and maintain strong throttle response and engine power.

How Often Should You Service the Air Filter?

Cleaning or replacing the air filter element should be part of your regular maintenance schedule, especially if you ride in harsh environments. Yamaha's maintenance intervals are a guideline, but your use case will determine frequency – inspect after every few rides, and always after riding in dust, sand, or wet trails—if you notice excessive dirt or any tears, clean or replace the filter immediately—a torn filter must not be reused.

Required Tools & Supplies

  • 10mm and 8mm sockets
  • Phillips screwdriver
  • Foam air filter cleaner solution or mild dish soap
  • Clean water for rinsing
  • Air filter oil (specific for foam filters)
  • Clean rags and nitrile gloves

Step-by-Step Air Filter Cleaning Instructions

  1. Secure the Bike: Place your TTR110 on a stand or level surface to ensure stability.
  2. Remove Side Panel: Take off the right side panel (Panel A) to access the airbox. Usually held in with bolts or quick-release fasteners.
  3. Open the Airbox: Remove the air filter case cover by unscrewing the retaining screws.
  4. Remove the Air Filter: Gently pull out the sponge filter element and mesh screen, if equipped. Inspect for any rips or signs of deterioration – do not reuse a damaged filter.
  5. Clean the Filter:
    • Wash the foam filter with a dedicated foam filter cleaning solution or a mild dish detergent and warm water. Never use gasoline or flammable solvents.
    • Gently squeeze (do not wring or twist) excess dirt and cleaner solution out of the filter until clean.
    • Rinse thoroughly with clean water. Avoid applying heat to dry; allow to air dry completely.
  6. Clean the Airbox: Wipe out any dirt or debris from the inside of the airbox with a clean, damp rag. Pay attention to the water catch and drain tube at the bottom.
  7. Oil the Filter: Once dry, saturate the foam filter evenly with air filter oil. Work the oil through the foam, ensuring all surfaces are coated, but do not over-saturate.
  8. Reinstall the Filter: Put the oiled filter element (plus any mesh) back into the airbox, ensuring a proper seal all around to prevent unfiltered air from entering.
  9. Reassemble the Airbox & Panel: Mount the air filter cover, screw it in securely, and reinstall the side panel. Double check that everything is tight and correctly in place.
  10. Dispose of Waste Responsibly: Used filter oil and cleaning solvents should always be disposed of in an environmentally responsible manner.

When to Replace the Air Filter

If the foam is torn, crumbling, or excessively worn, replace it immediately. The TTR110 uses a washable, reusable foam filter, but over time, degradation will require a new filter for optimal protection and performance.

2019 Yamaha TTR110: Model-Specific Tips

  • The TTR110's airbox is accessible by removing the right side panel, making filter maintenance straightforward for riders of all skill levels.
  • Pay attention to the airbox water catch design at the bottom. If you see water or oil accumulation in the clear drain tube, clean it out to maintain optimal airflow.
  • Always check the foam filter carefully after muddy or wet rides. The compact engine bay means a dirty filter has more impact on performance.
  • If riding in extremely dusty locations, consider carrying a spare filter to swap quickly at the trailhead.

Keep these steps in your regular maintenance routine and your 2019 Yamaha TTR110 will deliver reliable performance both for new riders and experienced dirt bikers alike.

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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.