How to Change the Coolant in a 2014 GAS GAS EC 300: A MotoSport Guide
Routine coolant changes on your 2014 GAS GAS EC 300 are essential for engine longevity, optimal performance, and preventing costly overheating issues. This process is straightforward, but attention to detail ensures both safety and effective maintenance of your two-stroke enduro machine.
What You Need
- Coolant: Use a high-quality motorcycle-specific coolant compatible with aluminum radiators. For extreme cold, adjust antifreeze ratio for enhanced protection.
- Sturdy drain pan to catch the old coolant
- Basic hand tools: typically an 8 mm or 10 mm socket, flathead screwdriver
- Clean rags for cleanup
- Protective gloves
2014 GAS GAS EC 300 Coolant System Highlights
- This model uses twin radiators connected in parallel for maximum cooling efficiency.
- Aluminum radiators are susceptible to corrosion if improper coolant is used – always avoid plain water or automotive-only products.
- Pay special attention to sealing surfaces and radiator cap condition; pressure leaks can impact performance.
Step-by-Step Coolant Change Guide
- Allow the engine to fully cool. Never attempt this on a hot engine to avoid burns from pressurized hot coolant.
- Remove the radiator cap.
Located on the right-side radiator, turn counterclockwise and lift away. This will help the system drain faster and prevent vacuum lock. - Place your drain pan beneath the water pump.
The water pump is on the right side, lower engine case. Locate the lowest bolt on the water pump cover – this is typically the coolant drain bolt. Loosen and remove it with your socket.
Tip: Tilt the bike gently side to side to ensure both radiators drain completely. - Inspect the drained coolant.
Check for unusual color, debris, or oil sheen (which could signal internal issues). Any black sand-like residue may indicate component wear and should prompt further investigation. - Flush (Optional but recommended).
Add distilled water through the radiator cap, reinstall drain bolt, and run the engine briefly. Re-drain to flush out any leftover contaminants. - Reinstall the drain bolt.
Tighten it securely but do not overtighten – stripping the threads can lead to leaks. - Refill with new coolant.
Pour fresh coolant slowly into the radiator until the level is just below the base of the filler neck. Use a funnel to prevent spills. - Bleed the cooling system.
With the radiator cap off, briefly start the engine and let it idle. Squeeze the radiator hoses gently to help purge trapped air bubbles. Top up coolant if the level drops and replace the cap securely. - Check for leaks.
After running the engine up to full temperature, inspect all connections, the drain bolt, and caps for any sign of leaks.
Additional Tips Specific to 2014 GAS GAS EC 300 Owners
- Check the radiator cap seal each service interval – a worn cap can cause pressure loss and overheating, especially in hard riding conditions.
- Monitor for sediment: Any black or metallic grains in the drained coolant may indicate early pump or gasket wear, which is not uncommon in well-used bikes. Regular flushes help spot potential problems early.
- Ensure proper coolant mixture for your climate (distilled water plus approved coolant/antifreeze). The owner's manual recommends consulting your dealer for severe conditions, but a 50:50 mixture is generally suitable for most environments.
- Never substitute automotive coolant unless it specifically states compatibility with motorcycle aluminum systems and meets all OEM requirements.
With regular coolant changes and inspection, your 2014 GAS GAS EC 300 will keep its cool no matter what the trail throws your way.
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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.