How to Change the Coolant in a 2013 GAS GAS TXT PRO 280
Keeping your GAS GAS TXT PRO 280 in optimal condition means regular maintenance, especially of the cooling system. Changing the coolant ensures your engine keeps its cool during demanding trials, preserves vital seals, and protects internal engine parts from corrosion and overheating. Below is a proprietary MotoSport guide on how to change the coolant for the 2013 TXT PRO 280–plus a few tips unique to these legendary trial machines.
Tools & Supplies Needed
- Fresh, light alloy compatible coolant (formulated for aluminum engines, rated to at least –30°C)
- Basic hand tools (sockets, Allen keys, screwdriver)
- Drain pan
- Rags or shop towels
- Protective gloves
Preparation and Safety
- Ensure the bike is cool to the touch. Never open the radiator cap or work on the coolant system when the engine is hot–serious burns can occur.
- Stabilize your TXT PRO 280 on a stand or flat surface so it won‘t tip as you work.
Draining the Old Coolant
- Remove the seat and fuel tank for easier access to the radiator cap and hose connections.
- Locate the radiator cap under the fuel tank area. Remove the cap slowly to release any residual pressure.
- Locate the lowest point in the cooling system, typically a water pump or the lowest hose connection. Place your drain pan under this point.
- Loosen the hose clamp and carefully disconnect the hose, allowing old coolant to drain completely. To speed up draining, tilt the bike gently side-to-side.
- Inspect hoses and clamps for cracks or wear–replace any questionable parts.
Flushing the System (Optional but Recommended)
- If the old coolant is cloudy or contaminated, pour clean distilled water into the radiator, reattach the lower hose, and run the engine briefly (a minute, max) to circulate.
- Shut off the engine, drain the water, and repeat until it runs clear.
Refilling with New Coolant
- Reconnect all hoses and ensure clamps are snug.
- Slowly pour coolant into the radiator until full. Do not rush, preventing air pockets.
- Fill the coolant up to the base of the filler neck.
- Leave the cap off, start the bike, and let it idle for a couple of minutes. This helps purge remaining air. Watch for bubbles disappearing from the filler neck.
- Top up the coolant if the level drops.
- Replace the radiator cap securely.
Final Steps
- Reinstall the fuel tank and seat.
- After a brief test ride, recheck the coolant level. Top up if necessary.
- Dispose of old coolant safely according to your local regulations.
Model-Specific Tips & Advice
- The 2013 TXT PRO 280 uses a compact radiator design optimized for high agility–check the radiator fins for debris and avoid bending them when removing the tank.
- Only use coolants made for aluminum/light alloy engines to prevent internal corrosion and deposits.
- Check often that the cooling system is leak-free, especially after hard trial sessions–these bikes run hot under slow, technical use.
- With the TXT PRO‘s lightweight design, always properly torque all bolts when reinstalling the tank to prevent vibration and wear.
- Don’t forget to periodically inspect the condition of water pump seals–these are a known maintenance item on high-use trial bikes.
Proper cooling maintenance is essential to keep your 2013 GAS GAS TXT PRO 280 powering through sections competition after competition.
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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.