How to Change the Coolant in a 2023 Husqvarna TC50

Shop parts for a 2023 Husqvarna TC50 Dirt Bike.

Keeping your 2023 Husqvarna TC50's cooling system in prime shape is crucial for performance and engine longevity. Routine coolant changes remove debris and reduce corrosion, especially important for a high-performance youth dirt bike like the TC50. Below you'll find MotoSport's proprietary step-by-step instructions for changing the coolant on this model, along with insights unique to the TC50 platform.

Before You Begin: What You'll Need

  • Correct type of motorcycle coolant (refer to your owner's manual for specifications)
  • Basic socket set
  • Catch pan or suitable container
  • Rags for cleanup
  • Funnel
  • Protective gloves and eyewear

Step 1: Prepare Your TC50

  • Ensure the bike is completely cool. Hot coolant can cause burns.
  • Stand the bike upright on a level surface for accurate draining and refilling.

Step 2: Drain the Old Coolant

  • Place your catch pan under the water pump cover area on the right side of the engine.
  • Identify and remove the coolant drain screw (consult the owner's manual for its exact location typically found at the lowest point of the water pump housing) (see owner's manual procedure) .
  • Remove the radiator cap to let air in for complete draining.
  • Allow coolant to fully drain. Dispose of used coolant responsibly.

Step 3: Inspect Components

  • Check the drain bolt and sealing washer for wear or damage. Replace if necessary.
  • Inspect visible radiator hoses and connections for signs of leaks, bulges, or cracking. The TC50 relies on simplicity and ruggedness, but close inspection before refilling is always wise.

Step 4: Reinstall Drain Screw

  • Clean the thread on the drain bolt and water pump cover.
  • Reinstall the drain screw, tightening to manufacturer-recommended torque specifications.

Step 5: Refill with Coolant

  • Position the bike upright and use a clean funnel to slowly add new coolant into the radiator neck.
  • Fill until coolant reaches the top (but do not overfill).

Step 6: Bleed Air from the Cooling System

  • The TC50 can trap air pockets. After initial filling, lean the bike side to side a few times and gently tap the radiator hoses to help trapped air escape.
  • Many small-bore bikes benefit from briefly running the engine (with the radiator cap off, in short increments) until coolant just circulates, then turning off and re-topping as needed. Do not let the bike get hot with the cap off .
  • When bubbling stops and the coolant level remains steady, replace and tighten the radiator cap.

Step 7: Final Inspection – Safety Check

  • Double-check for leaks at the drain bolt, hose connections, and the radiator itself.
  • Wipe away any spilled coolant, as it is slippery and toxic to pets and wildlife.
  • After your next ride, inspect the coolant level and top off if needed. New air bubbles can work loose on the first heat cycle.

TC50 Model Notes: What Owners Should Know

  • The 2023 TC50 features a compact, non-pressurized cooling circuit – a simple system but overheating is a risk under aggressive riding or high heat. Frequent coolant checks are critical, especially for junior riders still learning throttle control .
  • If overheating is a repeated issue, an upgraded impeller from a TC/SX 65 fits the TC50 and can increase coolant flow, reducing the risk of boil-over without expensive modifications .
  • Never use tap water – minerals will shorten the life of radiators and water pumps.

Changing your TC50's coolant regularly is quick insurance against costly repairs and lost riding time. Keep the system clean and correctly filled to ensure cool, safe power all season long.

Related Shopping Categories

Shop Radiators for a 2023 Husqvarna TC50 Dirt Bike.

Shop Coolant for a 2023 Husqvarna TC50 Dirt Bike.

Shop Temperature Sensors for a 2023 Husqvarna TC50 Dirt Bike.

Shop Tools for a 2023 Husqvarna TC50 Dirt Bike.

Shop Radiator Hoses for a 2023 Husqvarna TC50 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.