How to Change the Coolant on a 2014 Husqvarna FE501HQ
Shop parts for a 2014 Husqvarna FE501HQ Dirt Bike.
Keeping your 2014 Husqvarna FE501HQ running cool is crucial for performance and long engine life. Changing the coolant is a straightforward maintenance task that helps prevent overheating and corrosion, especially on this high-compression, race-derived 501cc powerplant. Here is MotoSport's proprietary guide, streamlined for FE501HQ owners.
What You Need
- Coolant (high-quality motorcycle-specific or OEM recommended/spec antifreeze)
- Clean catch pan
- Socket or wrench set
- Funnel
- Distilled water (for rinse/flush, optional but recommended)
- Shop towels
- Fresh seal ring/crush washer (recommended for drain bolt)
- Safety gloves
Before You Begin
- Ensure the engine is cold before starting.
- Work in a well-ventilated area.
- If you plan to flush, use only distilled water to avoid introducing minerals that could corrode internal passages.
- The FE501HQ's cooling system holds about 1.2L of coolant–do not overfill.
Step-by-Step Coolant Change for the FE501HQ
- Place the bike on a stand or keep it upright and stable to ensure even coolant draining.
- Remove the radiator cap to vent the system. The cap is typically on the left radiator, accessed easily with the tank shrouds in place.
- Locate the coolant drain bolt. On the FE501HQ, it is positioned near the water pump at the bottom-side case (often a small 8mm or 10mm bolt).
- Position the catch pan below the drain bolt.
- Remove the drain bolt and allow the old coolant to fully drain. For best results, gently lean the bike side-to-side (safely) to maximize drainage.
- Inspect and replace the drain bolt seal ring if damaged or old; always tighten securely but do not overtighten on reinstallation.
- (Optional flush) Pour distilled water into the radiator, re-install the drain bolt, and briefly run the engine to circulate. Drain completely to remove contaminants and old coolant remnants.
- Refill with fresh coolant through the radiator neck until it reaches the bottom of the fill tube, as specified for your model.
- Reinstall the radiator cap securely.
- Start the engine and let it idle to normal operating temperature, allowing the thermostat to open and air bubbles to escape. Watch for leaks.
- Let the bike cool fully, then check and top off the coolant again if needed. The reservoir may contract and require a small addition after the first heat cycle.
Special Notes for the 2014 Husqvarna FE501HQ Owner
- This model shares significant design with KTM's large-displacement enduro bikes, so cooling system access and procedures are similar to those used across Husqvarna and KTM platforms.
- The FE501HQ engine is high-compression and can run hot, making frequent coolant checks especially important in racing or aggressive off-road conditions to prevent overheating damage.
- Make sure to use a coolant that is silicate-free and designed for aluminum radiators–this protects your water pump seals and internal passages.
- After maintenance, always inspect for leaks around the pump cover and hose fittings due to vibration or seal aging on older bikes.
Maintaining Cooling Performance
- Clean radiators frequently, especially after muddy rides. Mud-caked fins will trap heat.
- Consider adding an overflow (expansion) tank for hard enduro use, as the FE501HQ may lose small amounts of coolant from boil-over in extreme conditions.
- Replace coolant at least every 2 years–more often if racing or riding in severe environments.
Properly servicing your cooling system ensures your 2014 Husqvarna FE501HQ stays ready for everything from singletrack to open desert. Refer to your owner's manual for specific torque specs and intervals where needed, and trust MotoSport for all your parts and maintenance needs.
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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.