How to Change the Coolant in a 2020 Husqvarna TC85BW
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The 2020 Husqvarna TC85BW is a high-performance youth motocross bike with a 2-stroke engine, built for both reliability and speed. Keeping up with regular maintenance – including coolant changes – ensures the best performance and longevity for your bike. Changing the coolant helps prevent overheating and protects vital engine components.
Step-by-Step Guide: Changing the Coolant
- Prep Your Work Area
- Make sure the bike is on a stable, level surface.
- Let the engine cool completely to avoid scalds.
- Gather necessary tools: appropriate screwdriver/wrench, container for used coolant, rags, and new coolant (Honda Type 2 or Engine Ice, etc.). - Remove the Radiator Cover (if needed)
- To access the radiator cap, you may need to remove the radiator covers. Use the proper tool and be careful of the plastic. - Drain the Old Coolant
- Place a container under the water pump area.
- Remove the drain bolt on the water pump cover as indicated in the owner's manual.
- Remove the radiator cap to allow the coolant to flow freely and fully drain the system.
- Dispose of coolant properly – it's hazardous to people & pets.
- Inspect the drained coolant for contaminants (mud, oil, metal flakes) indicating further maintenance may be needed. - Flush System (Optional)
- For best results, flush with distilled water to remove any residue.
- Reinstall the drain bolt and refill the system with water, run the engine briefly (1–2 minutes), then repeat the drain step. - Refill with New Coolant
- With the drain bolt reinstalled and tightened, slowly pour in new coolant through the radiator cap opening.
- If your TC85BW has a cylinder head bleeder screw, loosen it until air bubbles stop and only coolant flows out. Tighten after bleeding.
- Keep filling coolant until it reaches the top of the radiator neck.
- Replace the radiator cap securely. - Start & Check
- Start the engine and let it idle (do not rev hard).
- Check for leaks at drain bolt, hoses, and the radiator cap.
- After reaching operating temperature, shut down and check coolant level again. Top off if necessary. - Final Steps
- Wipe down any spilled coolant.
- Reinstall the radiator cover.
Model-Specific Tips & Ownership Notes
- Coolant Volume: Always consult your owner's manual for the exact coolant capacity of the TC85BW. Overfilling or underfilling can affect cooling performance.
- Radiator Fins: While you have the cover off, inspect fins for debris or damage. Clean with low-pressure air – never bend or twist the fins.
- After Mud Races: The TC85BW often sees muddy competition. Any evidence of mud or debris in drained coolant means you should flush the system more thoroughly.
- Antifreeze Safety: Husqvarna recommends changing clothes and rinsing thoroughly if coolant contacts skin or eyes.
- Piston Maintenance: If frequently ridden in sand, Husqvarna recommends changing the piston every 10 operating hours for best reliability.
When Should You Change Coolant?
Change coolant at least once a year, or sooner if:
- The coolant looks dirty or rusty
- The engine is overheating
- You notice leaks or drops in coolant level
Keeping your 2020 Husqvarna TC85BW's cooling system in top shape means more winning laps and fewer breakdowns – essential for any serious rider.
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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.