How to Change the Coolant in a 2014 GAS GAS EC125R
Routine coolant changes are vital for the health of your 2014 GAS GAS EC125R dirt bike. Proper coolant maintenance preserves engine longevity, prevents overheating, and ensures reliable performance on the trail or track. The process below is tailored specifically to your EC125R, with model-specific notes highlighted throughout. Always work with a cool engine to avoid burns or spills.
Key Info for EC125R Owners
- GAS GAS recommends a quality non-silicate ethylene glycol-based coolant, mixed with distilled water ideally in a 50/50 ratio unless you need extra freeze protection.
- Never operate the bike with low coolant levels–this increases risk of damage to the cylinder and water pump.
- Avoid mixing incompatible coolant brands/types, which could cause system corrosion.
- Inspect hoses for cracks or leaks during this maintenance.
Coolant Change Guide
- Preparation
- Allow the EC125R to cool fully—never open the radiator cap on a hot engine.
- Place the bike securely on a stand, and arrange a catch pan beneath the radiator and water pump area.
- Draining Old Coolant
- Remove the radiator cap (typically located on the right side under the plastic shroud).
- Locate and remove the coolant drain bolt from the water pump cover (usually at the lower end of the right side of the engine). Allow all coolant to fully drain.
- Inspect the drained fluid for contamination or debris—if found, consider flushing the system with distilled water before refilling.
- Optional Flush
- For a thorough service, flush the cooling system by reinstalling the drain bolt, pouring distilled water into the radiator, running the engine briefly, then draining again.
- Refilling with New Coolant
- Ensure the drain bolt is reinstalled and tightened per manufacturer's torque specs.
- Slowly fill the radiator with fresh coolant. Pause periodically to let trapped air escape.
- Gently rock the bike side to side as you fill; this helps release air pockets.
- Fill to just below the base of the filler neck.
- Reinstall the radiator cap securely.
- Air Bleeding and System Check
- Start the engine and allow it to reach normal operating temperature. Briefly rev the bike to move coolant through the system.
- Shut off, let cool completely, and check coolant level again—top off as needed.
- Check hose connections and the water pump area for any leaks.
Final Tips for EC125R Maintenance
- Replace coolant every 24 months or sooner if riding in extreme climates or racing conditions.
- Always use fresh coolant from a sealed container—old fluids can break down and lose vital chemical protection.
- Consider inspecting the radiator cap seal as part of your periodic service routine–a worn cap may cause pressure loss and overheating.
Your 2014 GAS GAS EC125R offers a robust, competition-driven two-stroke motor, but its performance depends on diligent upkeep. Schedule coolant changes before peak season, and always inspect related cooling system components when servicing. For genuine replacement parts, specialized coolants, and essential service tools, MotoSport has you covered.
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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.