How to Change the Coolant in a 2024 Husqvarna TC50

Shop parts for a 2024 Husqvarna TC50 Dirt Bike.

Changing the coolant on your 2024 Husqvarna TC50 is essential for keeping your mini motocross bike running cool and preventing overheating during hard motos. This guide makes the process straightforward and gives you several TC50-specific pointers so you can confidently service your bike with the MotoSport touch.

What You Need

  • OEM-spec coolant (blue G11-type coolant is recommended for Husqvarna per OE specs)
  • Metric socket set (including a 6mm for the water pump area)
  • Drain pan
  • Clean funnel
  • Rags for cleanup
  • Torque wrench (recommended for reassembly)

Draining the Old Coolant

  • Ensure the TC50 is completely cool before starting. Remove the seat and shrouds for easier access if needed.
  • Place a drain pan under the water pump area, on the right side of the engine (below the kickstarter).
  • Locate and loosen the coolant drain bolt on the water pump cover or the lowest radiator hose clamp. Slowly remove the bolt or clamp and allow the coolant to fully drain into the pan. Open the radiator cap to help the process by allowing air in.
  • For complete drainage, gently lean the bike side to side.

Inspect the System

  • Look over the radiator, hoses, and pump for leaks, damage, or build-up. For TC50 owners, overheating can occur if the impeller is worn or not flowing enough coolant. Consider using the SX65 impeller upgrade for improved cooling if you've experienced persistent overheating.

Flushing (Optional, but Recommended)

  • If your coolant was especially dirty or you suspect mixing with other types, flush the system with distilled water. Fill, run the engine for a minute, then drain completely.

Adding New Coolant

  • Install the drain bolt or clamp back and tighten securely (refer to your manual for torque spec).
  • Using a clean funnel, slowly pour in the new blue G11 coolant up to the base of the radiator neck. Fill until you see coolant at the bottom of the filler neck – avoid overfilling.
  • Reinstall the radiator cap.

Bleeding Air and Final Steps

  • Start the TC50 and let it idle briefly. This helps circulate the coolant and releases air pockets.
  • Shut off and let the engine cool, then double-check coolant level. Add more if necessary.
  • Inspect for leaks around the drain and hose connections.

TC50 Owner’s Tips

  • The 2024 TC50’s small radiator and high-revving motor make correct coolant level and system health especially critical. Even a small air pocket or low coolant can cause overheating on the track or trail.
  • If you encounter frequent overheating, apart from normal maintenance, upgrading to a SX65 impeller is a proven modification to boost coolant flow. This quick swap can be done in the same session as your coolant change.
  • Never mix coolant types. Always use a reputable, silicate-free blue G11 or a high-performance equivalent to protect internals and ensure maximum cooling.

Your 2024 Husqvarna TC50 deserves premium care, and regular coolant changes are a key part of performance and long-term reliability. For any replacement parts, maintenance kits, or upgrades, MotoSport is your one-stop shop to keep your mini-moto ready for the gate drop.

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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.