How to Change the Coolant in a 2012 Husqvarna TXC310

Shop parts for a 2012 Husqvarna TXC310 Dirt Bike.

Routine coolant changes are vital for keeping your 2012 Husqvarna TXC310 running at its peak. Proper coolant management helps prevent overheating and corrosion, ensuring reliable performance in demanding off-road environments. The TXC310 is a competition-focused enduro bike with a high-revving engine, so keeping your cooling system in top shape is especially important. Below is MotoSport’s proprietary step-by-step guide specific to your bike. Always let the engine cool before you start.

What You Need

  • Correct coolant (consult your owner’s manual for specification requirements)
  • Clean drain pan
  • Screwdrivers and metric socket set
  • Rags and safety gloves

Steps to Change the Coolant

  • Stabilize the Bike: Place the bike upright on a stand to keep it level. This ensures maximum drainage and prevents air pockets later.
  • Remove Seat and Side Panels: You’ll need to access the radiator cap and, potentially, certain hoses. Carefully remove these panels as outlined in your bike’s owner’s manual.
  • Locate the Radiator Cap and Drain Plug: The radiator cap is on top of the right radiator. The drain bolt is found at the lowest coolant hose on the water pump cover (right side of engine).
  • Drain the Old Coolant: Place your drain pan under the pump, unscrew the drain bolt, and remove the radiator cap to speed up draining. Allow all coolant to escape. Inspect for debris or oil–milky coolant can indicate issues requiring professional attention.
  • Optional Flush: For a thorough job, with the drain bolt removed, gently pour distilled water through the radiator to flush any remaining old coolant or deposits. Do NOT use hose water–the minerals can damage your system.
  • Reinstall the Drain Bolt: Replace the bolt with a fresh sealing washer if possible to prevent leaks. Tighten to the torque specified in your manual.
  • Add New Coolant: Slowly pour coolant into the radiator until it reaches the base of the filler neck. If your TXC310 has a coolant reservoir, fill it to the recommended mark as well.
  • Bleed the System: To purge trapped air, squeeze the radiator hoses and gently rock the bike side-to-side. Some models have an air-bleed screw near the thermostat–crack this open briefly while filling if equipped.
  • Run the Engine: Replace the radiator cap securely, start the bike, and let it idle until warm and the thermostat opens. Stop the engine, let it cool fully, and recheck the coolant level, topping off as needed.
  • Final Checks: Ensure there are no leaks around the drain plug, hose connections, or radiator. Reinstall the panels and seat, then clean up any spills, disposing of old coolant properly–it’s toxic to people and pets.

Model-Specific Notes for the 2012 Husqvarna TXC310

  • Air Purge is Important: The TXC310’s high-revving engine relies heavily on a completely filled cooling system for optimal performance. Air bubbles can lead to dangerous hotspots.
  • Coolant Type Matters: Use a high-quality, aluminum-safe motorcycle coolant that protects magnesium and aluminum components found in modern Husqvarnas.
  • Check Cooling Fan: If your TXC310 is equipped with an aftermarket radiator fan, ensure it cycles on during the test run. Overheating can quickly damage the top-end on this model.
  • Inspect Hoses and Clamps: The TXC310’s hoses may harden or crack over time, especially if raced or ridden in extreme heat. Replace any suspect parts during your coolant change.

Why Change Coolant Regularly?

The TXC310’s lightweight, powerful engine produces significant heat. Fresh coolant maximizes thermal stability and lubricant performance, essential for long, hard rides or racing. MotoSport strongly recommends coolant changes at least annually or after extended wet or muddy events.

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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.