How to Change the Oil in a 2022 GAS GAS TXT RACING 300

Shop parts for a 2022 GAS GAS TXT Racing 300 Dirt Bike.

Changing the oil in your 2022 GAS GAS TXT Racing 300 is a vital part of routine maintenance, ensuring smooth performance and extended engine life. This proprietary MotoSport.com guide will walk you through the necessary steps and tools, with special considerations unique to this model.

Tools & Supplies Needed

  • 8mm and 10mm socket wrenches
  • Torque wrench
  • Drain pan
  • Funnel
  • Clean rags
  • High-quality transmission/gear oil (meeting manufacturer specifications)
  • New crush washer or O-ring for the drain bolt (if recommended)
  • Nitrile gloves (optional)

Preparation Steps

  • Ensure the motorcycle is on a stable, level surface. Use a stand if available.
  • Warm up the engine for a few minutes. Warm oil drains faster and carries out more contaminants.
  • Turn off the engine and allow it to cool slightly for safety.

Step-by-Step Oil Change Process

  1. Remove the Skid Plate (if equipped):
    • Use an 8mm or 10mm socket to remove skid plate bolts for better access to the drain bolt.
  2. Locate the Drain Plug:
    • The drain bolt is typically found on the lower right-hand side of the engine case. Refer to your user manual for the exact location if in doubt.
  3. Place the Drain Pan:
    • Position a suitable oil drain pan underneath the engine.
  4. Remove the Drain Plug:
    • Using the correct size socket, carefully unscrew the drain bolt. Allow the oil to fully drain.
    • Watch out for washers (crush washers) that may come off with the bolt and replace if necessary. GAS GAS engines are known for soft threads; do not overtighten when reinstalling.
  5. Inspect the Old Oil:
    • Check for metallic particles, which could indicate internal wear. Report significant findings to a technician.
  6. Clean and Reinstall the Drain Plug:
    • Wipe away any old oil from the plug and engine case. Install a new crush washer if equipped.
    • Thread the drain bolt by hand first, then snug up using your torque wrench to the manufacturer's specification. Do not overtighten, as thread damage is common on this model.
  7. Fill with New Oil:
    • Locate the oil fill cap on the top of the engine case. Remove it.
    • Place a funnel and pour in the manufacturer-recommended oil by type and amount (consult your manual for the exact volume; typically just under 500ml for the transmission on the TXT Racing 300).
    • Recommended oils for the GAS GAS TXT Racing 300 are specialist gear/transmission oils meeting JASO MA or equivalent specs.
  8. Check the Oil Level:
    • With the bike level, verify the oil is at the correct level via the inspection window or dipstick (if equipped).
    • Top up as needed, but do not overfill.
  9. Reinstall the Oil Cap and Clean Up:
    • Replace and tighten the oil fill cap.
    • Wipe off any spills with a clean rag.

Final Checks

  • Start the engine and run for 30 seconds. Check for leaks at the drain plug and fill cap.
  • Turn off the engine, let it settle, and recheck the oil level. Adjust if necessary.
  • Reinstall the skid plate if removed.
  • Dispose of old oil and parts responsibly at a recycling center.

Model-Specific Notes for the 2022 GAS GAS TXT Racing 300

  • This motorcycle uses separate gear oil, not engine oil, as it's a two-stroke bike. Be sure you’re changing the transmission/gearbox oil, not premix oil.
  • The engine cases are relatively soft-aluminum, so torque specifications are crucial. Avoid overtightening any fasteners.
  • Recommended oil change interval is typically every 20–30 hours of riding or sooner under extreme conditions.
  • Always clean dirt and debris away from the fill and drain areas before removal to prevent contamination.

Conclusion

Maintaining your GAS GAS TXT Racing 300's transmission oil is essential for reliability and performance. Always follow proper torque values, use quality gear oil, and stay vigilant for leaks after changing. For more maintenance tips, genuine parts, and gear, visit MotoSport.com—your trusted partner in keeping your ride in top shape.

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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.