How to Change the Coolant in a 2015 Husqvarna FE501S
Shop parts for a 2015 Husqvarna FE501S Dirt Bike.
Routine coolant changes are essential for keeping your 2015 Husqvarna FE501S engine running at optimal temperature and preventing overheating, corrosion, and premature wear. Follow this proprietary MotoSport guide for a safe and effective coolant service on your FE501S.
What Makes the FE501S Unique
The 2015 Husqvarna FE501S features a robust 4-stroke engine and composite subframe, making it popular for its durability and off-road versatility. Owners should know that the cooling system is designed for high-performance demands and features a dual radiator setup with compact routingrequiring extra attention to air bubble removal during coolant changes. The recommended coolant capacity for this model is approximately 1.2 liters*, and always use a high-quality motorcycle-specific coolant for best results.
Tools & Supplies You Will Need
- Socket set (for drain bolt and radiator cap removal)
- Drain pan
- Funnel
- Clean water (for rinsing, optional)
- Fresh ethylene glycol-based motorcycle coolant
- Torque wrench (to ensure proper bolt reinstallation)
- New drain bolt O-ring or seal ring (recommended to prevent leaks)
- Protective gloves & eye wear
Step-by-Step Coolant Change Instructions
- Let the bike cool completely before you begin to avoid burns and pressure-related injuries.
- Upright the motorcycle securely on a flat, stable surface using a stand or lift.
- Remove the radiator cap to relieve any residual pressure in the cooling system and allow the coolant to drain more freely.
- Locate the coolant drain bolttypically found on the lower part of the engine water pump cover. Place a drain pan beneath it.
- Remove the drain bolt and allow the old coolant to fully empty from both radiators. Inspect the old coolant for signs of rust, oil, or heavy debris.
- If desired, flush with clean water by reinstalling the bolt, filling the radiators, and briefly running the engine. Drain again and repeat until water runs clear for a thorough flush.
- Install a new drain bolt seal ring, then reinstall and torque the drain bolt to manufacturer specifications to prevent leaks.
- Using a funnel, slowly fill the radiators with about 1.2 liters of fresh coolant, pouring gradually to prevent air pockets. Fill to just below the neck of the radiator cap.
- With the radiator cap off, tilt and gently shake the bike back and forth and squeeze radiator hoses to help remove trapped air. Top off coolant as needed.
- Start the engine and run for 1-2 minutes with the cap off, then shut down and top up if the level drops. Avoid revving. Air bubbles may surface during this step.
- Reinstall the radiator cap securely.
- Check underneath for leaks. After your first ride, re-check coolant level and inspect for leaks or overheating. If any coolant is missing, top off as required.
Pro Tips for 2015 FE501S Owners
- This model is sensitive to low coolant levels and trapped air, which can rapidly lead to overheating. Never skip the air-bleeding step after refilling.
- Examine the radiator hoses and cap for wear—replace if you see cracks or excessive hardening.
- Never mix coolant brands or types; always use what the manufacturer recommends for optimal corrosion protection and temperature control.
- If your bike ever overheats, first check for coolant leaks and inspect the cooling fan function if equipped.
*Actual fill quantities vary with full system drains or flushes. Always check your specific owner's manual or fill to the correct level at the radiator neck.
Related Shopping Categories
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Shop Tools for a 2015 Husqvarna FE501S Dirt Bike.
Shop Radiator Hoses for a 2015 Husqvarna FE501S Dirt Bike.
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.