How to Change the Coolant in a 2018 Husqvarna FC250
Shop parts for a 2018 Husqvarna FC250 Dirt Bike.
Keeping the coolant system of your 2018 Husqvarna FC250 in top condition is vital for engine performance and longevity. Use this MotoSport-exclusive guide for a smooth and spill-free coolant change, plus model-specific notes every FC250 owner should know.
Preparing Your FC250 for a Coolant Change
- Allow the engine to cool completely before starting. Hot coolant can cause serious burns.
- Park the bike upright on a stable, level surface.
- Gather supplies: a clean drain pan, rags, funnel, proper coolant (consult manufacturer recommendations), and simple hand tools (8mm or 10mm socket/wrench).
- Wear gloves and rinse with water if coolant contacts your skin. If it splashes in your eyes, flush thoroughly and seek medical attention if necessary.
Draining the Coolant
- Remove the seat and right side shroud, if access to the radiator cap is restricted.
- Unscrew the radiator cap slowly to release any pressure in the cooling system.
- Position your drain pan under the water pump area on the right side of the engine.
- Locate the coolant drain bolttypically found on the lowest point of the water pump cover and often identified by a sealing washer.
- Use an 8mm or 10mm wrench to remove the drain bolt, allowing coolant to fully drain out. It may help to gently rock the bike side to side to evacuate residual coolant.
- Inspect the drain bolt washer for damage. Replace it if crushed or deformed to ensure a good seal.
Flushing the System (Recommended)
- If the coolant appeared cloudy, oily, or rust-colored, refill the system with distilled water, reinstall the cap and bolt, run the engine briefly, then drain again. Repeat until the water runs clear.
Refilling with Coolant
- Reinstall and torque the drain bolt gently–do not overtighten.
- Using a funnel, pour the recommended coolant mixture slowly into the radiator neck until fluid reaches the bottom of the fill port.
- Gently tip the bike side to side to help dislodge trapped air bubbles. Top off as needed.
- Replace and tighten the radiator cap securely.
Finishing Touches & System Bleeding
- Start the engine and allow it to idle for a few minutes. Blip the throttle a few times–this helps purge any air from the system.
- Shut down and let the bike cool. Recheck the coolant level and top off if necessary.
- Inspect for leaks at the drain bolt and around the radiator cap.
Special Tips for the 2018 Husqvarna FC250
- The FC250 holds approximately 1.2L (about 1.27 quarts) of coolant. Overfilling is not advised–leave a small air gap at the top.
- Use only high-quality ethylene glycol-based coolant designed for aluminum engines, or a premixed coolant approved for off-road motorcycles. Avoid automotive coolants containing silicates or phosphates, as they can damage internal components.
- This model shares KTM's proven cooling system layout, making procedures familiar for many dirt bike owners. However, special care should always be taken to use the correct torque settings and to avoid cross-threading bolts in the magnesium water pump cover.
- Coolant leaks are most commonly traced to old washers or cracked hoses. Every coolant change is a good opportunity to visually inspect hoses, clamps, and the radiator cap seal.
Disposing of the Old Coolant
- Never pour used coolant down the drain. Place it in a sealed container and take to your local hazardous waste facility or auto parts store for recycling.
Routine coolant changes not only protect your FC250 from overheating but also help you catch potential issues before they become major problems. Stay ready for every ride with genuine parts and expert tips from MotoSport.
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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.