How to Change the Coolant in a 2024 GAS GAS TXT GP 250
Regular coolant changes are essential for maintaining optimal performance and engine life in your 2024 GAS GAS TXT GP 250. This unique trials bike uses a high-performance liquid-cooled engine that requires precise care to ensure consistent cooling, especially during technical rides where engine temperatures can fluctuate fast. Below is a step-by-step, MotoSport-exclusive guide for safely changing the coolant, along with model-specific tips every owner should know.
Preparation – Tools and Supplies Needed
- Fresh, manufacturer-recommended coolant (refer to owner manual for type and mix ratio)
- Basic hand tools (sockets, screwdrivers, pliers)
- Drain pan
- Clean funnel
- Shop towels
- Safety gloves and eyewear
Step 1: Access the Radiator and Cooling System
- Make sure the engine is completely cool. For safe handling, let the bike sit at least 30 minutes after riding.
- Place the bike on a stable stand. Remove the seat and, if needed, loosen or remove tank shrouds for access to the radiator and filler cap.
Step 2: Draining the Old Coolant
- Position a drain pan under the water pump's drain bolt (located at the lowest part of the cooling system on the right engine cover).
- Loosen the radiator cap (do not remove it fully yet) to relieve any residual pressure.
- Carefully remove the water pump drain bolt. Allow all coolant to drain. Slightly tilting the bike can help evacuate fluid from all cavities.
- Inspect the drained coolant for debris or discoloration, which could indicate internal corrosion or contamination.
Step 3: Flushing the System (Optional but Recommended)
- Replace the drain bolt temporarily and pour distilled water into the radiator. Start the engine and let it run for 1-2 minutes, then shut off and repeat the drain process. Repeat until flushed water runs clear.
Step 4: Refilling with New Coolant
- Reinstall the water pump drain bolt and tighten it securely.
- Using a clean funnel, slowly fill the radiator with the recommended coolant mix until the level reaches just below the top of the filler neck.
- Gently rock the bike side to side to help release trapped air bubbles. Wait several minutes, then top off as needed.
Step 5: Bleeding Air from the System
- With the cap off, start the engine and let it idle briefly. Watch for air bubbles rising from the filler neck.
- As the coolant circulates, continue topping up if the level drops. When bubbles are gone and the level stabilizes, install the radiator cap securely.
Step 6: Final Checks
- Run the engine until it reaches normal operating temperature, then shut off and allow to fully cool.
- Recheck coolant level and add more if necessary. Inspect for leaks at the drain bolt and around the radiator.
- Make sure the overflow tube is routed free of kinks, and all panels are reinstalled securely.
Special Notes for TXT GP 250 Owners
- The TXT GP 250 requires a non-silicate, ethylene glycol-based coolant for compatibility with magnesium and aluminum engine components.
- The uniquely compact radiator and tight chassis design mean coolant level is crucial following each coolant change. Do not overfill – expansion space is required.
- For top performance, inspect the coolant at the end of every riding season and change it at least once per year, or sooner if hard riding or muddy conditions are frequent.
- Always ensure the radiator cap is tightened fully to maintain system pressure and avoid overheating.
Routine maintenance like coolant changes helps your TXT GP 250 maintain its incredible throttle response and engine reliability. Proper care keeps you riding stronger, longer — every ride, every section.
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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.