How to Change the Coolant in a 2008 GAS GAS EC 250
Routine coolant changes help keep your 2008 GAS GAS EC 250 running cool and performing at its best under tough riding conditions. Follow this step-by-step MotoSport guide to expertly flush and refill your EC 250's cooling system.
What You Need
- Fresh coolant compatible with aluminum radiators
- Distilled water (if coolant is concentrate or for flushing)
- Suitable container for old coolant
- Basic hand tools: screwdrivers, pliers, sockets
- Protective gloves and eye protection
- Clean shop towels
Before You Begin: Important Model-Specific Notes
- The 2008 GAS GAS EC 250 uses a pressurized aluminum radiator system. Always allow your engine to cool fully before removing the radiator cap to prevent scalding burns–the cooling system is under pressure when hot.
- Check your owner manual for specific coolant requirements. Most EC models work best with a premixed 50/50 ethylene glycol-based coolant designed for off-road motorcycles. Avoid using only water or car antifreeze not labeled safe for dirt bikes as this may reduce protection or damage seals and gaskets.
Step-by-Step Coolant Change Guide
-
Cool Down & Prep
Place your EC 250 on a stand. Make sure the engine and radiator are cool to touch. -
Remove Radiator Cap
Carefully remove the radiator cap by pressing down and turning counterclockwise. This helps depressurize the system–never do this when the engine is hot–and allows coolant to drain freely. -
Drain Old Coolant
Locate the coolant drain bolt on the water pump (often the lowest bolt). Position your drain pan and remove the bolt. Let coolant fully drain from the system, gently rocking the bike if needed to help remove trapped fluid. -
Flush (Optional but Recommended)
Reinstall the drain bolt and fill the radiator with distilled water. Run engine at idle (cap off) for 2-3 minutes to circulate, then shut off and carefully drain again. Repeat until water runs clear if swapping to a different coolant type. -
Inspect Hoses & Clamps
Check hoses for cracks, bulges, or brittleness. Tighten or replace any suspect hose clamps, which are crucial on the EC 250 for holding up in tough terrain. -
Refill with New Coolant
Slowly pour in the recommended coolant until the radiator is just below the top of the filler neck. Squeeze radiator hoses to help burp air bubbles. -
Bleed Air from the Cooling System
Leave the radiator cap off and briefly start the engine. Let it idle for a few minutes. Watch for bubbles to rise as trapped air escapes–the fluid level may drop, so keep topping it off as needed. Once bubbling stops and the coolant stays at a consistent level, shut off the engine. -
Reinstall Radiator Cap
Secure the radiator cap and wipe up any spills. -
Test Ride & Check Levels
Ride for 5–10 minutes, then let the bike fully cool. Recheck coolant level and add more if needed, as any remaining air pockets will work their way out.
EC 250 Owner Tips: Special Considerations
- The EC 250 is designed for rugged trail use and hard enduro–keep your radiator guards clean and straight to avoid overheating or coolant leaks.
- Periodically check for signs of coolant seepage at the water pump weep hole–seal leaks are uncommon but can occur after long hours or a freeze event.
- Store your EC 250 with the correct antifreeze mix if riding in freezing temperatures to protect the cooling system.
Keep your 2008 GAS GAS EC 250 running reliably by maintaining its cooling system–timely coolant changes and a close visual inspection every ride are key. For everything you need to keep riding, trust MotoSport for genuine replacement parts and high-quality coolants tailored to your bike.
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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.