How to Change the Coolant in a 2024 GAS GAS EC 450F
Keeping your 2024 GAS GAS EC 450F running cool and at peak performance requires regular coolant maintenance. The EC 450F's advanced cooling system uses a specific routing and fill system, so careful attention must be paid during a coolant change to avoid air pockets and overheating. This guide covers everything you need to know about changing the coolant on this model, with model-specific notes unique to your GAS GAS enduro machine.
What You Need
- New coolant compatible with aluminum engines (consult your owner's manual for specifications, typically ethylene glycol-based)
- Drain pan or suitable waste container
- Socket/ratchet set (for drain bolt and panels)
- Gloves and eye protection
- Shop towels or rags
- Torque wrench (for correct bolt torque)
Preparation & Safety
- Always ensure the engine is completely cold before working on the cooling system.
- Coolant can be hazardous on contact with skin or eyes–wear gloves and eye protection at all times.
- Dispose of old coolant properly–it is toxic and harmful to the environment.
Step-by-Step Coolant Change
- Stand the bike upright.
Level positioning ensures full draining and prevents trapped air in the system. - Remove any bodywork or radiator shrouds as necessary to access the radiator cap.
- Remove the radiator cap.
This allows air to flow in and the coolant to drain completely. Only do this when the engine is cold to avoid scalding. - Place your drain pan under the water pump or lowest hose fitting.
- Locate and remove the coolant drain screw or water pump cover bolt.
On the EC 450F, this is typically on the water pump cover; M6 size torque spec is 10 Nm (7.4 lbf ft) when reinstalling.*
Allow all old coolant to drain out completely. - Inspect the sealing washer (replace if damaged) and reinstall the drain screw, tightening to spec.
- Pour in new coolant.
Fill through the radiator neck until the coolant level is about 10 mm (0.39 in) above the radiator fins (total capacity is approximately 1.2 L [1.3 qt]). - Reinstall the radiator cap securely.
- Start the engine briefly and let it idle for a few minutes, then turn off.
This allows coolant to circulate and dislodge any air pockets.
Tip: Gently rock the bike side-to-side. - Let the engine cool fully, then check and top off the coolant level as needed.
- Reinstall any bodywork that was removed.
Important Notes for 2024 GAS GAS EC 450F Owners
- This model is equipped with a modern twin-radiator system and a robust water pump designed for enduro conditions. Proper coolant fill and bleeding are critical to prevent overheating under load or in slow-going terrain.
- Routine checks for coolant level are recommended if you ride hard, as this engine can build significant heat.
- If you notice frequent coolant loss, inspect all hoses and the radiator for leaks or damage, common after falls or tipovers in rough terrain.
- Only use coolants compatible with aluminum cooling components, as non-OEM types may cause premature corrosion.
Environmental & Safety Reminders
- Never pour used coolant down the drain–take it to a recycling or hazardous waste center.
- Quickly clean any spills from your workspace, as coolant is very slippery and toxic to pets.
- Store new and used coolant away from children and animals.
Changing your coolant at regular intervals keeps your EC 450F performing at its best, providing reliable cooling during every moto adventure.
*Always double-check for model-specific details in your owner's manual or your MotoSport service adviser if uncertain.
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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.