Air Filter Cleaning & Replacement Guide for 2024 GAS GAS EX250

Shop parts for a 2024 GAS GAS EX250 Dirt Bike.

The 2024 GAS GAS EX250 benefits from an all-new, ergonomic design with improved bodywork and a tool-less air filter mounting system, making air filter maintenance more straightforward than ever. Maintaining a clean air filter is vital for optimal engine performance and longevity on this advanced two-stroke cross-country model.

Why Air Filter Care Matters for the EX250

  • Engine Protection: The high-flow Twin Air filter is designed to keep dust, sand, and debris out of your two-stroke powerplant, safeguarding internal components and maximizing horsepower.
  • Performance: A clogged or dirty air filter reduces airflow, impacting throttle response and power delivery.
  • Longevity: Regular care extends both air filter and engine life, protecting your investment in this race-ready machine.

How Often Should You Clean or Replace the Air Filter?

  • After every ride in dusty or sandy conditions.
  • Every 2-3 rides in moderate environments.
  • Replace the air filter if you notice damage, heavy clogging, or loss of foam integrity.

2024 EX250 Air Filter Removal & Cleaning Steps

  1. Remove the Seat: Use the seat latch at the rear to access the airbox. The new design makes this a quick, tool-less process.
  2. Open the Air Filter Box Cover: Release the clips securing the airbox cover. The 2024 EX250 features a straightforward access system for convenience.
  3. Remove the Air Filter: Grasp the Twin Air foam filter and remove it from its mount. The securing mechanism is designed for easy release without tools.
  4. Inspect the Filter: Check for rips, tears, or heavy staining. Replace if necessary.
  5. Wash the Filter: Rinse thoroughly with a dedicated foam filter cleaner and warm water. Do not use gasoline or petroleum–based cleaners, as these damage the foam structure.
  6. Dry Completely: Allow the filter to air dry completely. Do not wring or use compressed air, as this can tear the foam.
  7. Apply Air Filter Oil: Work high-quality foam air filter oil evenly into the clean, dry filter. Squeeze out any excess.
  8. Clean the Airbox: Wipe out the inside of the airbox with a damp cloth to remove any dirt or debris.
  9. Reinstall the Filter: Position the filter securely, ensuring a tight seal all around. The EX250 makes this step easy with its no-tools filter cage mount.
  10. Close the Air Filter Box Cover and Reinstall the Seat: Ensure all clips and latches are properly secured before riding.

Special Notes for 2024 GAS GAS EX250 Owners

  • The all-new airbox and inlet duct design optimizes airflow for the 2024 model, making routine filter changes even more critical for peak performance.
  • The Twin Air filter is OEM–fit; ensure you use the correct part number for replacements, available through MotoSport.
  • The tool-less design is unique to this platform for 2024, streamlining trackside maintenance.
  • Never use solvents or abrasive cleaning methods that can deteriorate the foam construction.

When to Replace the Air Filter

  • Visible tears, holes, thinning, or deteriorated foam mean replacement is due.
  • If cleaning no longer restores filter integrity or flexibility, install a new filter before your next ride.

Pro Tip

Keep a spare, pre-oiled filter ready for quick swaps. This is especially useful at events so your 2024 GAS GAS EX250 stays protected between motos.

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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.