How to Change the Coolant in a 2013 GAS GAS TXT PRO 250: The Complete MotoSport Guide
Shop parts for your ride now!The 2013 GAS GAS TXT PRO 250 is a purpose-built trials bike engineered for lightweight precision and superior balance. Proper cooling system maintenance is vital to maintain peak performance and long engine life–especially since this model uses a high-revving 2-stroke design that produces heat quickly. Below is the MotoSport-exclusive step-by-step guide to changing the coolant in your TXT PRO 250, including key details unique to this model every owner should know.
What Owners Should Know About the TXT PRO 250 Cooling System
- The coolant reservoir and radiator cap are positioned under the fuel tank, which must be removed for full access.
- This dirt bike requires a coolant designed for lightweight alloy motors. Always choose high-performance coolant compatible with aluminum components to prevent corrosion and maximize efficiency.
Tools & Supplies Needed
- Hex wrench set (for tank removal)
- Drain pan
- Clean rags
- High-quality coolant
- Protective gloves & eyewear
Step 1: Preparation
- Ensure the engine is completely cool before starting. Removing the radiator cap or draining fluid while hot can cause severe burns.
- Place the bike upright and stable on a paddock stand or flat surface.
Step 2: Remove the Fuel Tank
- Close the fuel cock and remove the fuel tube from the petcock.
- Unscrew the Allen screw (M4) holding the front of the tank.
- Tilt and lift the tank out of the frame to access the radiator cap and cooling system. Take care not to spill fuel onto painted or plastic surfaces.
Step 3: Drain Old Coolant
- Locate the coolant drain bolt or lower radiator hose near the bottom left of the engine.
- Place a drain pan beneath, then loosen the drain bolt or disconnect the hose to allow all coolant to flow out. Remove the radiator cap to speed draining.
- Inspect the drained coolant–milky or muddy color signals possible internal issues and should be addressed.
Step 4: Flush the Cooling System (Recommended)
- If overdue or if old coolant appears dirty, flush the system with clean water to remove residues.
- Reinstall the drain bolt or hose and securely tighten.
Step 5: Add New Coolant
- Slowly fill the radiator with recommended coolant up to the base of the filler neck. Pouring slowly helps prevent airlocks.
- Squeeze the coolant hoses gently to help release any trapped air.
- Reinstall the radiator cap.
Step 6: Reinstall Fuel Tank and Final Check
- Carefully position the tank, ensuring fuel lines are not pinched.
- Fasten the Allen screw and reconnect the fuel tube securely.
- Start the engine for a few minutes and monitor the coolant level after the engine cools again. Top off if necessary.
Additional TXT PRO 250 Notes
- The total coolant capacity may vary by year, so refer to your owner's manual for precise volumes.
- Inspect all hoses, clamps, and the radiator itself for signs of leaks, aging, or damage whenever you change the coolant.
- Periodic coolant changes (at least once every 2 years or more often in extreme riding conditions) are essential for optimal heat management in the TXT PRO 250.
Routine cooling system care goes a long way in protecting your 2013 GAS GAS TXT PRO 250 and keeping your ride smooth, responsive, and competition-ready.
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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.