How to Change the Coolant in a 2022 Husqvarna FC350
Shop parts for a 2022 Husqvarna FC350 Dirt Bike.
Regular coolant changes are key to keeping your 2022 Husqvarna FC350 running cool and protecting your engine’s internals. This model boasts a high-performance engine equipped for the rigors of motocross, making proper cooling crucial for reliability and performance.
What You’ll Need
- Fresh motorcycle coolant (compatible with aluminum radiators)
- Catch pan or container
- Socket set
- Torque wrench
- Safety gloves and eyewear
- Distilled water (optional, for flushing)
- Rags for spills
Step-By-Step Coolant Change Procedure
- Ensure the engine is cool – Never open the cooling system while the engine is hot, as pressurized steam and hot fluid can cause burns.
- Secure the bike – Keep your FC350 upright on a stand for best access and complete drainage.
- Remove the radiator cap – Slowly twist off the radiator cap to relieve system pressure.
- Drain the coolant – Place your catch pan under the water pump cover (lower right-side engine case). Locate and remove the coolant drain bolt (typically an M6 bolt). Allow all old coolant to drain fully.
For the 2022 FC350, loosening this bolt ensures both radiators drain completely.
Tip: Now is a good time to check the old coolant for debris or oil indicating other engine issues. - Flush the system (optional but recommended) – Reinstall the drain bolt temporarily. Fill the radiator with distilled water, then run the engine for a brief period. Let cool, drain the water, and repeat if needed until clear. This helps remove old coolant and contaminants.
- Reinstall and torque the drain bolt – Replace the bolt with a new seal ring if needed. Tighten to Husqvarna’s specification: 10 Nm (7.4 lbf ft).
- Refill with new coolant – Slowly pour fresh coolant into the radiator until it reaches the bottom of the filler neck. Gently rock the bike back and forth to release trapped air bubbles. If equipped with a coolant bleed screw, follow the manual’s instructions to remove any residual air.
- Replace the radiator cap – Ensure the seal is in good condition to maintain pressure. Twist on securely.
- Start and run the engine – Let the engine idle until it's warm. Cycle the throttle a few times and check coolant level again. Top up if necessary as air may purge from the system on the first run.
- Inspect for leaks – Carefully check all hoses, clamps, and the drain bolt for any signs of leakage. Tighten as needed.
2022 Husqvarna FC350 Model-Specific Notes
- This FC350 features lightweight alloy radiators; use only coolants labeled safe for aluminum motorcycle engines to prevent corrosion.
- Overheating is rare with proper maintenance, but riding in tight, technical terrain? Consider upgrades like an auxiliary cooling fan or engine ice-style coolants for added security.
- If you’ve done emissions modifications or added a coolant overflow reservoir, follow any extra bleed steps specific to your setup.
Maintenance Reminders
- Change coolant at least once each year, or more frequently if you ride in harsh conditions.
- Always properly dispose of old coolant according to local regulations – coolant is toxic to humans and animals.
- Inspect hoses and radiator for cracks or leaks at every service.
Your 2022 Husqvarna FC350 deserves the best – keeping its cooling system fresh is one of the simplest ways to secure long engine life and maximum performance 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.