Air Filter Cleaning – Replacement Guide for 2002 Kawasaki KLX110

Shop parts for a 2002 Kawasaki KLX110 Dirt Bike.

The 2002 Kawasaki KLX110 is an enduring favorite for riders of all ages, recognized for its simplicity, reliable performance, and approachable maintenance. Maintaining the engine’s performance starts with routine air filter cleaning – critical for keeping dirt, sand, and debris out of the intake. The KLX110 uses a foam element air filter housed in a side-mounted air box, designed for regular servicing and maximized longevity.

Why Air Filter Service Matters on the 2002 KLX110

  • Engine protection: The foam design traps fine and coarse particles to prevent engine wear.
  • Optimal airflow: A clean filter promotes consistent power and throttle response.
  • Long engine life: Neglecting filter service can result in costly damage from dust or sand ingestion.
  • Frequent intervals: Clean after every dusty ride or every two to three rides under normal trail conditions.

How to Remove the Air Filter

  1. Ensure the bike is cool and on a stable stand.
  2. Using an 8mm socket or screwdriver, remove the side panel covering the air box.
  3. Unscrew the air filter retaining bolt or bracket, then gently pull out the foam filter element.

Cleaning the Foam Air Filter

  1. Carefully remove the filter from the air box, taking care not to drop debris inside.
  2. Rinse off excess dirt with water away from the engine side to avoid pushing grit inward.
  3. Clean the foam element using a specifically formulated air filter cleaner or mild detergent in a bucket of warm water. Work the filter gently–do not wring, only squeeze.
  4. Rinse thoroughly until water runs clear. Allow to air dry completely.
  5. When dry, generously apply foam filter oil. Massage the oil throughout the foam so it’s evenly distributed but not dripping.
  6. Reinstall the filter into the air box, ensuring the rubber sealing edge fits snugly against the intake flange. Always check that the air box is free of debris before final assembly.

Replacing the Air Filter Element

  • If your filter is damaged, crumbling, or the seams are splitting, replace it immediately. The 2002 KLX110 uses widely available foam filter elements made by top brands with dual-layer construction for enhanced protection and airflow.
  • Replacement is the reverse of removal–be sure to oil new foam filters before installation.

Model Notes for 2002 KLX110 Owners

  • The KLX110’s air box intake is positioned low and to the side, so avoid deep water crossings or washing the bike with the seat removed, as water can easily enter the intake track.
  • Genuine and aftermarket filters are available, often compatible with all KLX110 models from 2002–present.
  • Always use a high-tack, foam-specific air filter oil–engine or motor oil is not a substitute and can quickly break down the foam.
  • Check the sealing ring on the filter for proper contact. Any gaps can allow unfiltered air into the engine, causing rapid wear.

Quick Tips – Air Filter Service on the KLX110

  • Wear gloves–foam filter oil is sticky and challenging to wash off skin.
  • Inspect the air box drain regularly, especially after muddy rides.
  • Keep a spare oiled filter ready if you ride frequently for quick swaps between deep cleanings.
  • Re-torque all air box fasteners by hand to prevent overtightening into the plastic housing.

Keeping your 2002 Kawasaki KLX110’s air filter clean and properly maintained is the simplest way to insure years of trouble-free fun. Trust MotoSport.com for all your original and upgrade air filter parts, cleaner, and oil for your KLX110 maintenance.

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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.