How to Change the Coolant in a 2017 Husqvarna TC65

Shop parts for a 2017 Husqvarna TC65 Dirt Bike.

Keeping the coolant in your 2017 Husqvarna TC65 fresh is vital for consistent performance and engine longevity, especially since high-revving mini motocross bikes are susceptible to overheating. This guide, crafted specifically for MotoSport.com riders, walks you through each step to change the coolant safely and efficiently on your TC65. The process outlined is unique to this model and highlights specific details owners should keep in mind.

What You Will Need

  • Fresh engine coolant approved for dirt bikes (silicate-free for aluminum radiators)
  • Basic hand tools: socket set (8 mm is commonly used), screwdriver
  • Catch pan or suitable container
  • Shop towels or rags
  • Protective gloves and eye protection
  • Funnel (optional, but recommended)

Preparation

  • Ensure the motorcycle engine is completely cool before beginning.
  • Place the bike in an upright position on a stand to keep it level.
  • Remove the seat and shrouds if necessary for easier access to the radiator cap, though the TC65 is relatively open and typically requires minimal disassembly.

1. Drain the Old Coolant

  • Remove the radiator cap slowly to release any built-up pressure.
  • Position the catch pan beneath the water pump cover (located low on the right side of the engine).
  • Using your socket wrench, loosen and remove the water pump drain bolt. Allow coolant to fully drain into the pan. Gently tilt the bike side-to-side for a complete drain.
  • Inspect the drained coolant for any signs of rust, oil, or debris, indicating potential issues inside the cooling system.

2. Optional: Flush the System

  • If the coolant appears dirty or contaminated, flush the system with distilled water. Reinstall the drain bolt, fill the radiator with distilled water, run the engine briefly, then drain again. Repeat as needed until the water runs clear.

3. Reinstall the Drain Bolt

  • Wipe the drain bolt and sealing area clean.
  • Reinstall the drain bolt and tighten to the manufacturer's torque specification (typically about 6 Nm for the TC65–always check your manual for exact torque).

4. Fill New Coolant

  • Slowly pour the new coolant into the radiator using a funnel to avoid spills.
  • On the TC65, visually monitor the radiator neck and fill until it reaches the top.

5. Bleed Air from the System

  • It's essential to prevent air pockets in the cooling system as they can cause overheating.
  • Gently rock the bike side to side and lightly squeeze the radiator hoses to encourage trapped air to escape.
  • Crank the engine and let it idle with the radiator cap off for a minute. Top off coolant if the level drops, then secure the radiator cap.
    If the TC65 is equipped with a bleed screw (refer to your manual, as some models include a small bleeder bolt on the cylinder head), briefly loosen this to release trapped air, then retighten when coolant begins to seep out.

6. Final Check and Clean-Up

  • Inspect all hoses and fittings to ensure there are no leaks.
  • Wipe down any spillage and reinstall any bodywork you removed.
  • Run the engine and monitor coolant levels over the next ride, topping off if necessary.

Special Notes for 2017 Husqvarna TC65 Owners

  • Aluminum radiators: Always use coolant formulations compatible with aluminum components–silicate-free types help prevent internal corrosion.
  • Small capacity system: The TC65 holds a relatively low coolant volume compared to adult bikes, so take care when filling and bleeding to avoid leaving any air inside the system.
  • Racing tips: If you race or ride in hot conditions, consider changing coolant more frequently and using high-performance options like Engine Ice for improved temperature control.

Keeping your 2017 Husqvarna TC65's cooling system fresh ensures maximum performance and reliability ride after ride. For extra durability or replacement parts, check out the full selection of model-specific coolant, hoses, and radiator accessories for your bike at MotoSport.com.

Related Shopping Categories

Shop Radiators for a 2017 Husqvarna TC65 Dirt Bike.

Shop Coolant for a 2017 Husqvarna TC65 Dirt Bike.

Shop Temperature Sensors for a 2017 Husqvarna TC65 Dirt Bike.

Shop Tools for a 2017 Husqvarna TC65 Dirt Bike.

Shop Radiator Hoses for a 2017 Husqvarna TC65 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.