How to Change the Coolant in a 2018 GAS GAS TXT GP 280
Changing the coolant on your 2018 GAS GAS TXT GP 280 is essential for optimal engine performance and longevity. This model's liquid-cooled engine relies on clean, high-quality coolant to dissipate heat, prevent corrosion, and protect against freezing or boiling in extreme conditions. Below, you–ll find a step-by-step, MotoSport-exclusive guide tailored specifically for the TXT GP 280, including key maintenance notes unique to this bike.
Tools & Materials Needed
- Socket and wrench set
- Phillips screwdriver
- Catcher pan (for old coolant)
- Funnel
- Fresh coolant suitable for light alloy engines
- Protective gloves and safety glasses
- Clean rags
Step-by-Step Instructions
1. Prepare the Bike & Work Area
- Make sure the engine is completely cool before starting – never open a hot radiator, as this can cause burns.
- Stand the TXT GP 280 securely on a level surface.
2. Remove the Fuel Tank (if necessary for access)
- Disconnect the fuel line from the tap.
- Remove the screws securing the tank.
- Lift the tank free from the frame and set it aside, taking care not to damage hoses or wiring.
3. Drain the Old Coolant
- Place the catch pan beneath the water pump or drain bolt (usually located on the lower engine case).
- Remove the radiator cap slowly to release any residual pressure.
- Loosen the drain bolt or remove the hose clamp to allow old coolant to fully drain out.
- Inspect drained coolant for any unusual discoloration or debris – this can signal internal corrosion or gasket issues.
4. Flush the System (Optional but Recommended)
- Fill the cooling system with distilled water and run the engine briefly for a few minutes (with the radiator cap off).
- Shut off the engine, allow it to cool, and drain the water completely.
- Repeat if water appears dirty.
5. Refit Drain Bolt/Hose
- Ensure sealing washers or O-rings are in good shape and reinstall the drain bolt or hose securely.
6. Add New Coolant
- Use a coolant formulated for light alloy engines – avoid plain water or automobile-only antifreeze blends. TXT engines require corrosion protection matched to their magnesium and aluminum construction.
- Slowly pour coolant into the radiator using a funnel until filled to the base of the filler neck.
- If your TXT GP 280 is equipped with an expansion tank, fill it to the indicated "MAX" or appropriate level.
7. Bleed Air from the System
- With the radiator cap off, start the engine and let it idle. Gently rock the bike from side to side to help dislodge trapped air.
- Watch the coolant level as air bubbles are released; add fluid as needed.
- Once the engine begins to reach operating temperature and no more bubbles appear, reinstall the radiator cap.
8. Final Checks
- Run the engine through several heat cycles, letting it cool fully each time. Check coolant level and top up if necessary after each cycle.
- Inspect all hose connections for leaks and ensure the radiator and cap are secure.
2018 GAS GAS TXT GP 280–Specific Notes
- Cooling system design: The TXT GP 280 features a high-capacity radiator for extreme trial riding. Always use the correct coolant type to prevent internal corrosion within the magnesium and aluminum components.
- No thermostat: Like most trials bikes, this model runs a straightforward cooling loop – so air purging after a coolant change is critical to prevent hot spots.
- Check for leaks: Carefully inspect around the water pump and radiator after changing the coolant, as gaskets and seals can degrade over time.
- Maintenance intervals: Coolant should be changed at least every two years, or more often if you ride in muddy or harsh environments.
Pro Tips
- Always wear eye protection – coolant can cause irritation if splashed.
- Dispose of old coolant responsibly. Never pour it down the drain or on the ground.
- Note your change date and mileage for future maintenance records.
For more 2018 GAS GAS TXT GP 280 maintenance parts & accessories, rely on MotoSport to keep your ride in top shape.
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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.