How to Change the Coolant in a 2017 GAS GAS TXT PRO RACING 250
Maintaining proper coolant levels in your 2017 GAS GAS TXT PRO RACING 250 is crucial for performance, especially in demanding off-road conditions. This model uses a liquid cooling system that keeps the high-revving 2-stroke engine operating at peak temperature, preventing power loss and component damage. Follow these steps to ensure your bike stays cool through any ride.
What You'll Need
- Fresh coolant compatible with aluminum radiators (avoid straight water, use motorcycle-specific coolant with rust inhibitors)
- Basic tools: Allen keys, socket wrench set, screwdriver
- Catch pan
- Rags and safety gloves
Before You Start
- NEVER attempt to change the coolant with a hot engine. Allow the bike to cool completely to avoid burns and injury.
– Wait until the radiator and cylinder are at ambient temperature before removing the radiator cap or hoses.
Step-by-Step Coolant Change Guide
- Access the Radiator: Remove the seat and tank shrouds to expose the radiator. On the TXT PRO RACING 250, the radiator cap is tucked just under the edge of the gas tank and frame.
- Drain the Old Coolant: Place your catch pan below the lowest point of the coolant system–typically the water pump cover or a lower radiator hose. Loosen the hose clamp and gently remove the hose or open the dedicated drain bolt if equipped (some models have this on the water pump cover).
- Remove the Radiator Cap: Slowly open the radiator cap to release any remaining pressure. This will help the coolant drain quickly and completely.
- Flush (Recommended for Thorough Maintenance): After draining, tilt the bike gently side to side to remove trapped coolant. For severe buildup, fill the system with distilled water, replace the cap, and briefly run the engine to circulate the flush. Drain again after a few minutes. Repeat until the water runs clear.
- Refit the Hose/Drain Plug: Securely reattach any hoses or bolts removed during draining. Ensure proper seal to prevent leaks.
- Refill with Fresh Coolant: Slowly pour the new coolant into the radiator until it reaches the base of the filler neck. Squeeze the radiator hoses to help purge any trapped air bubbles. GAS GAS recommends a 50/50 mix of coolant and distilled water unless using a premixed solution.
- Bleed the Cooling System: With the cap still off, lean the bike left and right to free remaining air pockets. Once bubbles stop surfacing and fluid remains steady, reinstall the radiator cap.
- Run and Recheck: Start the engine and let it idle long enough to reach normal operating temperature–you may see a small drop in coolant level as trapped air escapes. Let the engine cool, remove the cap, and top up if needed.
- Inspect for Leaks: Carefully check around hoses, clamps, and the radiator for any signs of leaks, especially after the first ride. Tighten as necessary.
Special Notes for the 2017 GAS GAS TXT PRO RACING 250
- This bike features a compact aluminum radiator optimized for trials use–keeping mud and debris out improves cooling efficiency.
- Use high-quality 2-stroke coolant, as the bike relies on a lean oil mix and typically runs hotter under slow-speed, high-load trials conditions.
- Check the coolant level regularly–the compact design has a lower coolant capacity, making it more sensitive to loss from leaks or vaporization.
- Avoid overfilling the radiator, as excess can spill out during expansion and cause slippery residue on the frame or tires.
Maintenance Tip
Replace your coolant at least once a year, and always after severe overheating or significant mud submersion. Always use a funnel for spill-free filling, and properly dispose of old coolant as it is toxic to animals and the environment.
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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.