How to Change the Coolant on a 2017 Husqvarna FE450HQ

Shop parts for a 2017 Husqvarna FE450HQ Dirt Bike.

Routine coolant changes are essential for the health and performance of your 2017 Husqvarna FE450HQ. The cooling system in this model works hard, especially during aggressive off-road rides or hot weather, so keeping it fresh ensures optimal engine protection & efficiency. Below, you will find a proprietary MotoSport step-by-step guide tailored specifically to your bike.

What Makes the 2017 FE450HQ Cooling System Unique?

  • The FE450HQ is equipped with a high-performance liquid-cooled engine designed for enduro: overheating can quickly degrade performance or cause serious engine damage if coolant isn't maintained.
  • Ensure you use compatible, dirt bike-specific coolant with anti-corrosive properties. Some coolants will also offer superior performance in extreme off-road conditionsa key consideration for Husqvarna owners.
  • The radiator configuration is compact and efficient, but also vulnerable to debris. Periodically inspect radiator fins for clogs or damage when changing coolant.
  • Cooling fan operation: The FE450HQ relies on its efficient cooling fan. If you notice unusual temperature spikes after service, double-check for trapped air in the system or connection issues.

Tools & Supplies Needed

  • Gloves & safety glasses
  • Drain pan or bucket
  • 8mm or 10mm socket (check drain bolt size)
  • Fresh premixed motorcycle coolant (do not use tap water to dilute.)
  • Funnel & rags
  • Distilled water (if flushing system)

Step-by-Step Coolant Change Instructions

  1. Let the engine cool fully to avoid burns.
  2. Place your FE450HQ securely on a stand or level ground.
  3. Remove the radiator cap slowly (located up top, likely behind the front number plate/shrouds).
  4. Position the drain pan below the water pump area.
  5. Locate & remove the coolant drain bolt at the engine case's lowest point. You may need an 8mm or 10mm socket. Allow coolant to drain completely.
  6. If performing a flush (recommended if coolant is dirty), reinstall the drain bolt, fill the radiator with distilled water, and run the engine briefly. Repeat the drain process. Do this until the exiting liquid runs clear.
  7. Reinstall the drain bolt securely (replace sealing washer if damaged).
  8. Slowly pour in new coolant until the radiator is filled to the base of the neck.
  9. Optional but ideal: "Burp" the system
    With the radiator cap off, start the engine and let it idle for a couple of minutes. Blip the throttle and gently rock the bike side to side. This helps air escape.
    Stop the engine. Check and top off if the level drops.
  10. Reinstall the radiator cap securely.
  11. Check the coolant reservoir (if equipped) and fill to the "max" line.
  12. Double-check for leaks from the radiator, drain bolt, or hoses.

Post-Service Recommendations

  • After riding and letting the bike fully cool, recheck coolant levels and add more if necessary.
  • Dispose of old coolant properlyit is toxic. Bring it to an approved facility.
  • Monitor the engine temperature gauge or indicator light on your first few rides after service.

Model-Specific Tips for 2017 FE450HQ Owners

  • The FE450HQ may be more sensitive to air pockets due to its compact coolant routing. Take extra care during the "burping" step to ensure no air is trapped.
  • A clogged or bent radiator fin can cause inefficient coolinginspect & clean as needed.
  • If you consistently experience overheating, inspect the radiator cap's condition, check water pump function, and inspect hose clamps for leaks. These are common points of failure for aggressive off-road bikes.

Maintaining the cooling system of your 2017 Husqvarna FE450HQ ensures lasting performance, reliability, & peace of mind on every ride.

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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.