How to Change the Coolant in a 2017 GAS GAS TXT PRO RACING 280
Shop parts for your ride now!Changing the coolant in your 2017 GAS GAS TXT PRO RACING 280 ensures optimal cooling performance, engine longevity, and reliable operation on the trail or trials course. This proprietary MotoSport guide walks you through the process tailored to your specific model and highlights key things owners should know about the TXT PRO RACING 280.
Tools & Supplies Needed
- Fresh coolant (high-quality motorcycle antifreeze, premixed 50/50 with distilled water or specifically recommended by GAS GAS)
- Screwdrivers (Phillips and flathead)
- Socket set or spanners
- Drain pan
- Funnel
- Clean rags
- Safety gloves and eyewear
Drain the Old Coolant
- Ensure the engine is fully cool before starting the job–never open a hot radiator cap.
- Locate the radiator cap just under the fuel tank, accessible by removing the seat and, if necessary, the airbox/filter assembly for better access to the top of the radiator.
- Position a drain pan beneath the lowest point of the cooling system. On the TXT PRO RACING 280, this is typically the water pump cover or a lower radiator hose connection.
- Remove the drain bolt (if present) from the water pump cover or loosen the lowest radiator hose. Allow all the old coolant to fully drain out.
Flush the System (Optional but Recommended)
- If the coolant is notably dirty or hasn’t been changed in a long time, flush the system: pour distilled water through the system (in through the radiator cap, out the drain) to clear out any residue before refitting the drain bolt or hose.
Refill with Fresh Coolant
- Securely reattach and tighten the drain bolt or hose clamp.
- Slowly fill the radiator through the cap opening using a funnel, stopping periodically to let air escape.
- Fill until coolant reaches the base of the filler neck–do not overfill.
Bleed Air from the System
- With the radiator cap off, briefly start the engine and let it idle a few seconds to help work out bubbles. Stop the engine before it heats up.
- Top off coolant to the filler neck as needed.
- Install the radiator cap securely.
Heat-Cycle & Recheck Coolant Level
- Run the engine until it reaches normal operating temperature (thermostat opens, fan cycles if equipped), then shut it off and allow it to cool completely.
- Recheck the coolant level at the radiator and top off if needed.
- Inspect for leaks at the hoses, water pump, and drain bolt.
Things to Note for the 2017 GAS GAS TXT PRO RACING 280
- This model features a compact trials design. Access to the radiator cap may require removal of the seat and possibly the air filter/box for unobstructed access.
- The fan is critical on modern TXT PRO models: ensure all mounting bolts are secure, as vibration may loosen them. Owners often address stripped fan mount bolts with care, either re-tapping or using zip ties for a temporary fix. Regularly inspect after coolant changes.
- Check hoses for brittleness: Radiator hoses on trials bikes see frequent movement. Replace any that appear swollen, cracked, or soft to the touch.
- Coolant type matters: Use only coolants compatible with aluminum motorcycle radiators. Avoid automotive coolants unless specifically suitable for motorcycles.
- Air bleeding is essential: Air pockets can cause overheating. Take care in the fill and warm-up process to ensure all air is out of the system.
When to Change Coolant
- Change coolant at least every 2 years or as specified in your owner’s manual for extreme use. Regular inspection can identify issues before they become critical.
- Signs you need service include frequent overheating, discolored or low coolant, or leaks around the radiator or water pump.
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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.