How to Change the Coolant in a 2017 Husqvarna FE501HQ

Shop parts for a 2017 Husqvarna FE501HQ Dirt Bike.

Changing the coolant in your 2017 Husqvarna FE501HQ is essential for maintaining peak performance, especially under the strain of tough Enduro conditions. This step-by-step guide is crafted specifically for FE501HQ owners and highlights key tips for this high-performance 510cc SOHC engine, which boasts advanced technology for reliability and power in extreme terrains–1.

What You Need

  • Quality coolant approved for modern off-road motorcycles
  • Socket wrench set
  • Drain pan
  • Clean rags
  • Funnel
  • Distilled water (if flushing the system)
  • Protective gloves and eyewear

Preparation

  • Let the engine cool completely. Never work on a hot cooling system to avoid burns.
  • Ensure the motorcycle is on a stable, level surface with the kickstand or a stand.

Step 1: Remove the Skid Plate (if installed)

  • If your FE501HQ is equipped with a skid plate, use the correct socket to remove it, exposing the water pump and coolant drain bolt.

Step 2: Locate and Remove the Radiator Cap

  • The radiator cap is typically located on the right side, just below the handlebar. Twist it slowly to release any trapped pressure.

Step 3: Drain the Old Coolant

  • Place a drain pan under the water pump (lower right side of the engine).
  • Use a socket wrench to carefully remove the coolant drain bolt.
  • Allow the coolant to fully drain into the pan.
  • If your model has a bleed screw, open it to facilitate faster and complete drainage.

Step 4: Flush the Cooling System (Recommended)

  • Reinstall the drain bolt temporarily.
  • Fill the radiator with distilled water.
  • Run the engine for 2–3 minutes, then turn it off and let it cool.
  • Drain the water completely to remove remaining old coolant and impurities.

Step 5: Reinstall the Drain Bolt

  • Inspect the crush washer and replace if damaged.
  • Reinstall and torque the drain bolt to factory spec. Do not overtighten.

Step 6: Add New Coolant

  • Using a funnel, slowly fill the radiator with fresh coolant until it reaches the filler neck.
  • Gently tip the bike side-to-side to remove air pockets from the system.
  • Top up as necessary.

Step 7: Bleed the System

  • If your FE501HQ has a bleed screw, open it until coolant flows free of bubbles, then retighten.
  • This is crucial for this high-compression, high-performance engine with its compact cooling passages.

Step 8: Reinstall the Radiator Cap and Skid Plate

  • Replace the radiator cap securely.
  • Reinstall your skid plate if necessary.

Step 9: Warm Up and Recheck

  • Start the engine and let it idle until fully warm.
  • Shut off and let cool, then verify coolant level and top off if needed.
  • Check for leaks at the drain bolt, hoses, and radiator area.

Specific FE501HQ Considerations

  • This model's water pump is driven by the counter-balance shaft, which means you get reliable coolant circulation, even at low RPMs–1.
  • The advanced cooling system is tailored for tough Enduro riding–1. Always use high-quality, compatible coolant to avoid corrosion and keep the system efficient.
  • Perform this maintenance at least once per season, or more often if you ride hard or in extreme conditions.

Responsible Coolant Disposal

  • Dispose of old coolant at an approved recycling facility. Never pour it down the drain, on the ground, or into open water.

Keep your FE501HQ's 510cc engine running at peak temperatureroutine coolant changes help prevent overheating and maintain engine longevity no matter where you 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.