How to Change the Coolant in a 2010 GAS GAS EC 250
Keeping the cooling system maintained on your 2010 GAS GAS EC 250 is crucial for performance, reliability, and engine longevity. Coolant should be changed at regular intervals, especially before race seasons or after extensive rides in challenging conditions. Here is a step-by-step guide tailored to your model, including specific tips unique to the GAS GAS EC 250.
Tools & Supplies Needed
- New coolant (recommended: 50/50 pre-mix or distilled water and coolant blend)
- Drain pan
- Metric socket set or wrenches
- Pliers (for hose clamps)
- Clean rags
- Rubber tip air nozzle (optional for thorough flush)
- Protective gloves and eyewear
Safety Precautions
- Always make sure the engine is cool before starting. Do not remove the radiator cap on a hot engine, as hot coolant and steam can cause burns.
- Work in a well-ventilated area and properly dispose of old coolant in accordance with local regulations.
Step-by-Step Coolant Change for the GAS GAS EC 250
-
Access the Radiator:
Remove the right side panel and seat to access the top of your radiator. On the 2010 EC 250, the radiator cap is located under the fuel tank. In some cases, partial removal of the fuel tank may be necessary for easier access to the radiator cap and hose connections. -
Drain the Coolant:
Place a drain pan under the lowest point of the radiator system – this is usually at the lower radiator hose or a dedicated drain bolt on the engine. Loosen the hose clamp and carefully disconnect the lower hose to let the old coolant drain completely. For a more thorough drain, gently tilt the bike to one side. -
Flush the System (Recommended):
If you are changing coolant types or see significant contamination, flush the cooling system. Avoid using just water, especially if switching to a different base fluid. Use compressed air with a rubber tip nozzle to blow out remaining old coolant after the hoses have been removed. This ensures minimal residue is left behind. -
Inspect Hoses and Connections:
While components are exposed, inspect the radiator hoses for cracks or brittleness and check hose clamps for tightness. Replace any worn parts before reassembly. -
Reconnect Hoses:
Securely reconnect the lower radiator hose and any others removed for draining or flushing. Double check clamp tightness to prevent future leaks. -
Refill with New Coolant:
Slowly pour your chosen coolant into the radiator until it reaches the specified level. Use a 50/50 mix of distilled water and coolant for best heat transfer if not using a pre-mixed solution. Avoid filling too quickly, which could trap air bubbles. -
Bleed the Cooling System:
Slightly tilt the bike from side to side to release air pockets. Some models may have a small bleeder screw on the cylinder head – crack it open until coolant flows out without bubbles, then retighten securely. -
Recheck and Test:
Replace the radiator cap and reinstall the fuel tank (if removed), seat, and side panel. Start the engine and let it idle for several minutes, periodically checking for leaks and monitoring coolant level. Top off the system if level drops as air works out.
Special Notes for the 2010 GAS GAS EC 250
- The OEM coolant from the factory may appear colorless or slightly opaque; switching to high-quality green, red, or blue coolants is safe as long as the product is compatible with aluminum engine components and mixed properly.
- Take care not to overtighten plastic radiator caps – this model uses a finely threaded alloy neck that can damage easily.
- The EC 250's design places important wiring near the upper left radiator – handle with care when removing or refitting panels to prevent electrical snags.
- If competing in off-road racing, consider adding a coolant additive to enhance heat transfer, especially for long high-load rides.
Maintenance Tip
Inspect and change the coolant at least once per year, or more frequently if you ride in extreme temperatures or muddy environments. Regularly check the coolant level before every ride for peace of mind and maximum performance.
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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.