How to Change the Coolant in a 2024 Husqvarna FE350S

Shop parts for a 2024 Husqvarna FE350S Dirt Bike.

Routine coolant replacement is key to keeping your 2024 Husqvarna FE350S running cool and performing at its best on or off the trail. This step-by-step MotoSport guide walks you through the process, highlighting tips unique to the model.

Why Change the Coolant?

Over time, coolant breaks down and contaminates, reducing its ability to regulate temperature and prevent corrosion inside your FE350S's cooling system. A fresh mixture ensures optimal heat transfer and extends the life of vital engine components.

What You Will Need

  • Coolant (recommend blue G11-type, as typically used by Husqvarna)
  • Socket set or wrenches
  • Drain pan
  • Funnel
  • Distilled water (if you want to flush the system)
  • Clean rags
  • New seal ring for water pump cover screw (recommended)
  • Protective gloves and goggles

Changing Coolant on Your 2024 FE350S

  1. Let the bike cool completely before starting. Hot coolant is dangerous and pressurized.
  2. Stand the FE350S upright on a level surface, using your kickstand or bike lift for stability.
  3. Remove the radiator cap (on top of the left radiator) to relieve any system pressure.
  4. Place a drain pan below the water pump area (bottom right engine cover).
  5. Locate and remove the coolant drain bolt:
    • This is typically on the water pump cover, an M6 bolt requiring a 10 mm wrench.
    • Let the coolant fully drain from the system.
  6. If you wish to flush the system, re-install the drain bolt temporarily, fill the radiator with distilled water, run the engine briefly, and then repeat the drain process.
  7. Reinstall the drain bolt using a new seal ring for best protection. Torque to 10 Nm (7.4 lbf-ft).
  8. Fill the radiator with new coolant:
    • Husqvarna models are factory-filled with blue G11 coolant, so use a compatible product for best performance and corrosion protection.
    • Fill slowly to avoid trapping air. Rock the bike gently side to side to help dislodge air bubbles.
    • Fill the radiator to just below the filler neck.
  9. Reinstall the radiator cap securely.
  10. Start the engine and let it idle until the fan cycles or for several minutes, then shut it off and allow it to cool.
    • Recheck coolant level and top off if neededrepeat until full.

Model-Specific Notes for the 2024 FE350S

  • This model features dual radiatorsboth will drain via the water pump bolt.
  • If outfitted with an emissions or overflow reservoir kit, additional steps may be required to ensure complete filling and circulation, particularly after deep maintenance. Ensure any upgrades or block-off kits are checked for leaks after coolant change.
  • Watch for signs of overheating if coolant isn't bled thoroughly; air pockets can reduce system efficiency. Always confirm the radiator cap is tightly secured after service.

Pro Maintenance Insight

Bikes supplied to the North American market are generally filled with blue G11-spec coolant. Matching this during replacement provides the best long-life corrosion resistance and heat transfer. Mixing with other coolant types is not recommended unless the system is thoroughly flushed in advance–avoid using green or orange coolants unless specifically formulated for European off-road motorcycles.

Keep Your FE350S at Peak Performance

Replace your coolant every 2 years or as outlined in your owner's manual. Regular coolant changes, paired with thorough checks for leaks and proper system bleeding, ensure your 2024 Husqvarna FE350S stays ready for every ride, race, or adventure.

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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.