How to Change the Coolant in a 2023 Husqvarna TC85BW
Shop parts for a 2023 Husqvarna TC85BW Dirt Bike.
Maintaining optimal engine temperature is crucial on the race-prepped Husqvarna TC85BW. Regular coolant changes are essential for performance and longevity, especially with the high-revving 85cc two-stroke engine and liquid cooling system. This guide, tailored for MotoSport.com riders, shows you how to change the coolant safely, with notes specific to the 2023 TC85BW.
What You'll Need
- Manufacturer-recommended engine coolant (avoid premixed coolants if the manual specifies concentrate and distilled water)
- Set of metric hand tools (sockets, allen keys)
- Drip pan
- Clean rags or shop towels
- Personal protective gear (gloves, safety glasses)
Steps to Change the Coolant
-
Ensure the Engine is Cool
Never open the cooling system while the engine is hot. Ensure the bike is upright and stable on a stand. -
Remove Bodywork (if necessary)
For better access to the radiator cap and drain bolt, remove the right side cover and, if needed, a shroud panel. Always reference your model's manual for trims and fastener details. -
Access the Radiator Cap
The TC85BW radiator cap is typically located on top of the right radiator. Slowly remove the cap to release any residual pressure. -
Position a Drip Pan
Place a drain pan under the water pump/cylinder zone on the right lower side of the engine. -
Locate and Remove the Coolant Drain Bolt
The coolant drain bolt is mounted on the lower right area of the cylinder or water pump. Remove it to let the old coolant flow completely into your pan. Crack the radiator cap fully here for better, faster draining. -
Inspect and Clean the System
Inspect the drained coolant for contamination (oil, debris, corrosion flakes). Clean the radiator fins and ensure nothing is obstructing airflow for optimal engine cooling.
Note: Badly bent radiator fins can be gently straightened using a small flat tool or commercial comb. -
Reinstall the Drain Bolt
Tighten the bolt securely but do not overtighten (consult your service manual for exact torque). -
Refill with Fresh Coolant
Fill the radiator slowly to help prevent air pockets. Pour coolant in up to the neck. If your TC85BW model features a bleeder port on the cylinder head, loosen this screw until coolant flows free of bubbles, then retighten. This prevents hot spots and overheating. -
Reinstall the Radiator Cap
After bleeding and topping up, fit the radiator cap back securely. -
Reinstall Any Removed Bodywork
Reattach your shroud and side cover as needed. -
Start the Bike and Inspect
Run the engine briefly and check the coolant level again—top off if the level drops.
Check for leaks at the drain bolt, hose joints, and the radiator.
Important Notes for 2023 Husqvarna TC85BW Owners
- Engine Coolant Circuit: The 2023 TC85BW uses an advanced liquid cooling circuit specifically tuned for high-output competition riding. Overfilling or introducing air into the system can reduce performance and increase risk of overheating.– Based on Husqvarna factory guidance
- Interval: Husqvarna recommends a coolant change as part of your regular maintenance schedule (typically every 20 hours of operation, or sooner after muddy or wet riding conditions).
- Safety: Used coolant may be toxic. Avoid skin or eye contact and dispose of it at a certified recycling center.
- Coolant Type: Always use coolant designed for aluminum motorcycle engines to prevent corrosion. Do not use automotive fluids unless specified.
- Bikes Used in Sand: Extra maintenance is recommended when riding in sandy conditions—change coolant and clean the radiators more often to prevent sand-related overheating.
Performing regular coolant service ensures your 2023 Husqvarna TC85BW stays at peak performance race after race. For tools, radiators, hoses, OEM and aftermarket coolant, and all your dirt bike maintenance parts, MotoSport.com has you covered.
Related Shopping Categories
Shop Radiators for a 2023 Husqvarna TC85BW Dirt Bike.
Shop Coolant for a 2023 Husqvarna TC85BW Dirt Bike.
Shop Temperature Sensors for a 2023 Husqvarna TC85BW Dirt Bike.
Shop Tools for a 2023 Husqvarna TC85BW Dirt Bike.
Shop Radiator Hoses for a 2023 Husqvarna TC85BW 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.