How to Change the Coolant on a 2013 GAS GAS EC300F
Changing the coolant on your 2013 GAS GAS EC300F is essential for maintaining engine temperature, preventing overheating, and ensuring long engine life. Here is a step-by-step guide specific to your model, including tips unique to the EC300F.
Supplies You–ll Need
- Fresh coolant (recommended type: GRO GCC 30% Long Time or an equivalent, rated to at least -18°C)
- Basic hand tools (socket wrench, screwdriver, pliers)
- Drain pan
- Clean cloth or rags
- Protective gloves & eyewear
Key Notes about the GAS GAS EC300F
- Drain bolt location: The EC300F–s coolant drain bolt is typically located on the lower side of the water pump cover. Reference your owner–s manual or visually confirm on the right side of the engine.
- Coolant system layout: The dual radiator design means both sides must fully drain for a complete change.
- Coolant capacity: Typically just under 1 liter, verify with your manual or as the old coolant drains.
Step-by-Step Guide
-
Allow the engine to cool.
Never open the radiator cap or coolant system while the engine is hot–serious burns can result. -
Remove the radiator cap.
On the EC300F, the radiator cap is located at the top of the right-side radiator. Twist counterclockwise and lift off. -
Position a drain pan.
Place the drain pan directly beneath the water pump or lowest hose junction. -
Remove the coolant drain bolt.
Using a socket wrench, loosen and remove the coolant drain bolt at the water pump cover. Allow all coolant to flow out.
Pro tip: Unscrew radiator bleeder bolts (if equipped) or briefly tug on lower radiator hoses to ensure full drainage on both sides. -
Inspect the old coolant.
Look for rust, oil contamination, or debris. These can indicate underlying engine or radiator issues. -
Reinstall drain bolt.
Clean the bolt and sealing washer. Thread in by hand, then snug with the wrench–don–t overtighten. -
Refill the radiator.
Slowly pour coolant up to the base of the filler neck. Squeeze the radiator hoses gently to release trapped air. -
Bleed the cooling system.
With cap still off, tip the bike side-to-side and squeeze hoses again. Add coolant as fluid level drops.
Model note: EC300F radiators can trap air at the tops, so this step is crucial to prevent overheating and hot spots. -
Start the engine.
Let idle for 2–3 minutes. Check coolant level again. Add if needed. Shut engine off and let cool, then top up once more if required. -
Check for leaks.
Inspect the drain bolt and hoses, ensuring everything is dry and tight. -
Reinstall the radiator cap.
Secure firmly by pressing down and turning clockwise until tight.
Additional EC300F Owner Tips
- Recommended coolant interval: Change every 1–2 years or if it becomes dirty or contaminated.
- Never mix coolant types–flush thoroughly if switching brands or to a waterless solution.
- If riding in extreme temperatures or racing, check coolant levels and condition more frequently.
- Avoid using pure water; always use a premix for optimal corrosion protection.
Following these steps helps keep your 2013 GAS GAS EC300F running cool and reliable, whether on the trail or at the track.
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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.