How to Change the Coolant in a 2020 Husqvarna TC50: Step-by-Step Guide

Shop parts for a 2020 Husqvarna TC50 Dirt Bike.

Maintaining your 2020 Husqvarna TC50 means keeping its cooling system in top shape to prevent overheating and ensure peak performance. Changing the coolant regularly is a key part of this process. This MotoSport-exclusive guide will walk you through each step, including model-specific tips and things every TC50 owner needs to know.

What You Need

  • Fresh coolant (Husqvarna uses blue G11-type coolant for this model–never mix types for best performance)
  • Basic hand tools (ratchet, sockets, screwdrivers)
  • Suitable drain pan/container
  • Clean rag
  • Protective gloves and eyewear

Preparation

  • Make sure the engine is completely cool before beginning.
  • Position the motorcycle upright on a stable surface or bike stand.
  • Place your drain pan under the water pump cover to catch old coolant.

Draining the Old Coolant

  • Remove the radiator cap to help the system vent–this allows coolant to drain freely.
  • Locate and remove the coolant drain bolt at the water pump cover–usually on the lower right side of the engine.*
  • Let the coolant flow out completely. Tilting the bike slightly can help drain any remaining fluid.*

Optional: Inspect the Water Pump Impeller

  • If you're experiencing frequent overheating on your TC50, consider inspecting or upgrading the water pump impeller as described by some owners.–using an impeller from the TC65 is a known reliability upgrade for these bikes.*

Refilling with New Coolant

  • Reinstall the drain bolt and torque to spec.
  • Slowly add fresh coolant through the radiator cap opening until the level is just below the cap seat.
  • Replace the radiator cap, ensuring it is secure.

Check for Leaks & Air Pockets

  • Start the engine and let it idle for a few minutes.
  • Gently rock the bike side to side to help any trapped air escape.
  • Let the engine cool, then re-check the coolant level and top off as needed.

Essential Notes for 2020 Husqvarna TC50 Owners

  • Coolant Compatibility: Use the OEM blue G11-type coolant for optimal long-term performance–this helps avoid corrosion and system damage.*
  • Youth Race-Ready Design: The TC50 features a compact, lightweight chassis and a powerful two-stroke engine, so keeping the cooling system fresh is crucial for reliability and safety.
  • Overheating Issues: If your bike has frequent overheating, the pump impeller upgrade mentioned above is a proven fix.*

Performing a coolant change on your Husqvarna TC50 is a straightforward way to extend engine life and keep performance at its peak. For everything you need–from coolant to water pump kits–MotoSport has you covered.

* Model-specific procedures and reliability insights are based on owner experience and official Husqvarna documentation. Always dispose of old coolant responsibly and check your owner's manual for any updates specific to the 2020 model year.

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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.