Air Filter Cleaning – Replacement Guide for 2018 Kawasaki KLX110L

Shop parts for a 2018 Kawasaki KLX110L Dirt Bike.

The 2018 Kawasaki KLX110L is a legendary pit bike built for fun, reliability, and off-road versatility. Keeping its engine protected and performing at its best demands regular maintenance of the air filter. Foam filters are standard for this model and must be cleaned and oiled properly or replaced for peak engine life and power.

Why Air Filter Care is Essential on the KLX110L

  • Engine longevity–Dirty or clogged filters restrict air flow, decreasing performance and risking engine damage from dirt intrusion.
  • Filtration design–OEM and popular aftermarket options (like Twin Air and Uni) use dual layer foam. A coarse outer layer traps larger dirt/grit; an inner fine foam layer catches small particles to shield the cylinder and maximize airflow.
  • Bike-specific fit–Ensure you use filters compatible with the KLX110L’s airbox for proper sealing and function.

Cleaning the Air Filter – Step-by-Step

  1. Remove the left side plastic cover to access the air filter box. Take out the filter gently.
  2. Inspect for holes, tears, or hardening—replace if compromised.
  3. Spray both sides of the filter with a quality foam filter cleaner. Allow the cleaner to soak in for a few minutes.
  4. Rinse the filter with fresh water. Gently squeeze (do not wring) to flush out dirt and cleaner. Repeat as needed until all debris and cleanser are removed.
  5. Let the filter air dry naturally. Do not use compressed air, heat guns or direct sunlight for extended periods to prevent foam degradation.
  6. While drying, clean the inside of the airbox with a safe cleaner. Ensure it’s fully dry before reassembly.
  7. Once dry, apply air filter oil evenly. Massage through the foam for full coverage. The oil traps small particles and ensures filtration efficiency. Excess oil should be gently squeezed out.
  8. Reinstall the filter, ensuring a tight seal along the airbox’s foam ring. Refit the cover and seat.

When to Replace the Air Filter

  • Replace the filter if torn, heavily stained, or not returning to a supple texture after cleaning.
  • High-performance aftermarket filters (Twin Air, Uni) can be cleaned and reused indefinitely with proper care, but visual inspection for foam breakdown is crucial.
  • Consider installing a fresh filter for competitive riding, extremely dusty conditions, or after every 10–20 hours of use for casual off-road riding.

Model Specific Notes – 2018 KLX110L

  • The KLX110L’s airbox design requires precise filter fit and sealing; always confirm that the filter is seated perfectly to block unfiltered air. Compatibility extends to KLX110, KLX110R, and KLX110R L models for several aftermarket foam filters.
  • This model responds best to clean, oiled filters—expect easier starts, more consistent throttle response, and fewer instances of plug fouling with proper air filtration habits.
  • Factory filters and high-end foam replacements are formulated for high-dust, off-road environments; don’t substitute generic paper elements for the best performance.

Proprietary MotoSport Tips

  • Invest in a foam filter cleaning kit and high-quality foam filter oil for the best results and engine protection—these kits are available in MotoSport’s parts catalog.
  • Keep spare filters on hand for quick swap-outs between rides and clean used filters immediately after removal to avoid oil hardening and trapped contaminants.
  • When reinstalling, always check airbox and intake tract for loose dirt before placing the filter.

Caring for your 2018 Kawasaki KLX110L air filter preserves engine life, maximizes power, and keeps you riding longer. Trust MotoSport for all the OEM and aftermarket KLX110L air filtration parts you need.

Related Shopping Categories

Shop Air Filters for a 2018 Kawasaki KLX110L Dirt Bike.

Shop Air Filter Oil for a 2018 Kawasaki KLX110L Dirt Bike.

Shop Air Box Covers for a 2018 Kawasaki KLX110L Dirt Bike.

Shop Tools for a 2018 Kawasaki KLX110L Dirt Bike.

Shop Intake Parts for a 2018 Kawasaki KLX110L Dirt Bike.

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.