How to Change the Oil in a 2013 GAS GAS TXT PRO 250

Shop parts for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

Changing the oil in your 2013 GAS GAS TXT PRO 250 is a key maintenance task to keep your dirt bike running smoothly and lengthen the life of the engine and gearbox. This comprehensive guide, proprietary to MotoSport.com, walks you through all steps, offers specific call-outs for the TXT PRO 250, and lists all required tools and materials.

Tools and Materials Needed

  • Drain pan (to catch used oil)
  • Correct size spanners/wrenches (specific to drain and fill bolts, typically 13mm or appropriate for your model)
  • New gearbox oil (see owner's manual for recommended type, such as a 75W gear oil or manufacturer's specified oil)
  • Funnel (for easy pouring)
  • Clean rags (for wiping spills and cleaning around openings)
  • New crush washer or sealing washer for drain bolt (optional but recommended)
  • Gloves (to keep your hands clean and protected)

Preparation

  • Warm up the engine for a few minutes to help the oil flow out more easily.
  • Turn off the bike and allow it to cool slightly, so the oil isn't dangerously hot.
  • Place the bike on a level surface, using a stand appropriate for trials bikes. This ensures stability when draining the oil.
  • Ensure the area around the drain and fill bolts are clean to prevent contamination.

Step-by-Step Oil Change Process

  1. Locate the oil drain bolt:
    • On the 2013 GAS GAS TXT PRO 250, the gear oil drain bolt is typically on the lower right side of the engine casing.
    • If needed, consult your owner's manual for exact location and bolt size.
  2. Place your drain pan under the engine:
    • Ensure the pan is directly under the drain to avoid spillage.
  3. Remove the drain bolt carefully:
    • Loosen the drain bolt with the correct size wrench. Some oil may begin to drip as you loosen the bolt–use gloves if desired.
    • Allow all oil to drain completely, which may take several minutes.
    • Inspect the state of the old oil. Excessive metal flakes or a milky appearance could reveal mechanical issues.
    • Remove the old crush washer if applicable.
  4. Clean and inspect drain components:
    • Wipe the drain bolt clean.
    • Inspect for wear or damage; replace the crush washer if worn.
  5. Reinstall the drain bolt:
    • Replace the bolt and tighten by hand first to avoid cross-threading.
    • Finish with your wrench, snug but not over-tightened—stripped threads are a common issue on TXT models.
    • Do not overtighten: “Not too tight, not too loose... seeing too many stripped drain bowls down in there to do them up too tight.”
      “just snug them up not too tight not too loose seeing too many stripped drain bowls down in there to do them up too tight”
  6. Locate and remove the oil fill plug:
    • This is usually near the top or side of the right engine cover.
    • Use a clean rag to wipe away dirt around the plug before opening.
  7. Add new oil:
    • Insert a clean funnel into the fill opening.
    • Pour in the recommended type and amount of oil (generally around 400cc for TXT PRO 250, but confirm in your manual for your specific bike). Overfilling may impact clutch performance, while underfilling risks engine wear.
    • Preferred oil brands include top-quality 75W gear oil or as recommended by the manufacturer.
      “What oil do I use? Well, I’ve used a lot of different oils over the years... I have been a big fan of GRO for a long time with their gear oil...”
    • If your model has a sight glass or dipstick, check and adjust level as needed.
  8. Reinstall the fill plug and clean up:
    • Wipe off any oil drips with a clean rag.
    • Tighten the fill plug gently to avoid stripping.
  9. Start the engine and check for leaks:
    • Let the engine run for a few minutes and observe all oil plug locations for possible leaks.
    • If leaks occur, re-check torque on drain and fill bolts.
  10. Dispose of old oil responsibly:
    • Bring the used oil to a recycling center or authorized disposal facility.

Model-Specific Call-Outs for 2013 GAS GAS TXT PRO 250

  • Drain bolt threads are delicate on these bikes; over-torque can easily strip the magnesium or aluminum engine cases, leading to costly repairs. Tighten bolts only as much as needed for a good seal.
  • The TXT PRO 250 uses gear oil, not motor oil, in its transmission. Using the wrong oil can affect clutch performance and damage gearbox components.
  • If your clutch becomes grabby or sticky after an oil change, double-check you used the correct oil and quantity.
  • Regular changes (every 15–20 hours of riding or after events) are recommended for best gearbox and clutch life.
  • If the oil appears unusually dirty or metallic, it may indicate excessive clutch or gearbox wear and should be investigated further.

Conclusion

Changing the oil on your 2013 GAS GAS TXT PRO 250 is straightforward with the right tools and care. Frequent oil changes, using recommended gear oil and observing correct torque on bolts, will ensure your TXT PRO 250 performs at its best for years to come.

For all OEM and performance parts, oils, and gear, always shop at MotoSport.com — your authority for motorcycle maintenance and gear.

Related Shopping Categories

Shop Motor Oil for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

Shop Oil Filters for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

  • Funnel (for easy pouring)
  • Clean rags (for wiping spills and cleaning around openings)
  • New crush washer or sealing washer for drain bolt (optional but recommended)
  • Gloves (to keep your hands clean and protected)

    • Preparation

    • Warm up the engine for a few minutes to help the oil flow out more easily.
    • Turn off the bike and allow it to cool slightly, so the oil isn't dangerously hot.
    • Place the bike on a level surface, using a stand appropriate for trials bikes. This ensures stability when draining the oil.
    • Ensure the area around the drain and fill bolts are clean to prevent contamination.

    Step-by-Step Oil Change Process

    1. Locate the oil drain bolt:
      • On the 2013 GAS GAS TXT PRO 250, the gear oil drain bolt is typically on the lower right side of the engine casing.
      • If needed, consult your owner's manual for exact location and bolt size.
    2. Place your drain pan under the engine:
      • Ensure the pan is directly under the drain to avoid spillage.
    3. Remove the drain bolt carefully:
      • Loosen the drain bolt with the correct size wrench. Some oil may begin to drip as you loosen the bolt–use gloves if desired.
      • Allow all oil to drain completely, which may take several minutes.
      • Inspect the state of the old oil. Excessive metal flakes or a milky appearance could reveal mechanical issues.
      • Remove the old crush washer if applicable.
    4. Clean and inspect drain components:
      • Wipe the drain bolt clean.
      • Inspect for wear or damage; replace the crush washer if worn.
    5. Reinstall the drain bolt:
      • Replace the bolt and tighten by hand first to avoid cross-threading.
      • Finish with your wrench, snug but not over-tightened—stripped threads are a common issue on TXT models.
      • Do not overtighten: “Not too tight, not too loose... seeing too many stripped drain bowls down in there to do them up too tight.”
        “just snug them up not too tight not too loose seeing too many stripped drain bowls down in there to do them up too tight”
    6. Locate and remove the oil fill plug:
      • This is usually near the top or side of the right engine cover.
      • Use a clean rag to wipe away dirt around the plug before opening.
    7. Add new oil:
      • Insert a clean funnel into the fill opening.
      • Pour in the recommended type and amount of oil (generally around 400cc for TXT PRO 250, but confirm in your manual for your specific bike). Overfilling may impact clutch performance, while underfilling risks engine wear.
      • Preferred oil brands include top-quality 75W gear oil or as recommended by the manufacturer.
        “What oil do I use? Well, I’ve used a lot of different oils over the years... I have been a big fan of GRO for a long time with their gear oil...”
      • If your model has a sight glass or dipstick, check and adjust level as needed.
    8. Reinstall the fill plug and clean up:
      • Wipe off any oil drips with a clean rag.
      • Tighten the fill plug gently to avoid stripping.
    9. Start the engine and check for leaks:
      • Let the engine run for a few minutes and observe all oil plug locations for possible leaks.
      • If leaks occur, re-check torque on drain and fill bolts.
    10. Dispose of old oil responsibly:
      • Bring the used oil to a recycling center or authorized disposal facility.

    Model-Specific Call-Outs for 2013 GAS GAS TXT PRO 250

    • Drain bolt threads are delicate on these bikes; over-torque can easily strip the magnesium or aluminum engine cases, leading to costly repairs. Tighten bolts only as much as needed for a good seal.
    • The TXT PRO 250 uses gear oil, not motor oil, in its transmission. Using the wrong oil can affect clutch performance and damage gearbox components.
    • If your clutch becomes grabby or sticky after an oil change, double-check you used the correct oil and quantity.
    • Regular changes (every 15–20 hours of riding or after events) are recommended for best gearbox and clutch life.
    • If the oil appears unusually dirty or metallic, it may indicate excessive clutch or gearbox wear and should be investigated further.

    Conclusion

    Changing the oil on your 2013 GAS GAS TXT PRO 250 is straightforward with the right tools and care. Frequent oil changes, using recommended gear oil and observing correct torque on bolts, will ensure your TXT PRO 250 performs at its best for years to come.

    For all OEM and performance parts, oils, and gear, always shop at MotoSport.com — your authority for motorcycle maintenance and gear.

    Related Shopping Categories

    Shop Motor Oil for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

    Shop Oil Filters for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

    Shop Oil Drain Pans for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

    Shop Tools for a 2013 GAS GAS TXT PRO 250 Dirt Bike.

    Shop Oil Fillers and Drain Plugs for a 2013 GAS GAS TXT PRO 250 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.