How to Change the Coolant in a 2024 Husqvarna TC85BW: Step-by-Step MotoSport Guide
Shop parts for a 2024 Husqvarna TC85BW Dirt Bike.
Routine maintenance is crucial for the 2024 Husqvarna TC85BW, and changing your coolant ensures your high-revving 85cc engine stays within optimal temperature on the track or trail. The TC85BW features advanced 2-stroke technology, hydraulic clutch, and a robust cooling system designed for youth competition. Here's a proprietary MotoSport guide to properly changing the coolant, including model-specific insights for your TC85BW.
What Makes the TC85BW Unique?
- Innovative powervalve system increases torque and power across RPMs.
- Lightweight aluminum cylinder and new cylinder head for 2024 improve cooling efficiency and overall performance.
- Durable close-ratio six-speed gearbox and high-performance cooling designed for racing demands.
What You Need
- New coolant (Engine Ice or high-quality Motocool recommended for aluminum parts)
- Socket wrench with correct size sockets
- Drain pan
- Shop rags
- Funnel
- Protective gloves & eyewear (coolant can be harmful)
- Torque wrench
- Distilled water (for flushing or mixing if not using pre-mixed coolant)
Proprietary MotoSport Coolant Change Instructions
- Ensure engine is cold – Always allow your TC85BW to cool to prevent pressure or burns.
- Remove the radiator shrouds to access your radiators and filler cap. Lay fasteners aside and inspect shrouds for dirt build-up that can impede cooling.
- Remove the radiator cap slowly to relieve pressure.
- Locate the coolant drain bolt (typically found at the bottom of the water pump housing on the side of the engine). Place your drain pan underneath.
- Remove the drain bolt and allow all old coolant to flow out. Rock the bike gently if needed. Dispose of old coolant responsibly – never down the drain.
- Inspect drain bolt and crush washer. Replace the washer if damaged to avoid leaks.
- Reinstall and torque the drain bolt to manufacturer spec (see manual for precise torque value).
- Flush with distilled water if switching coolant brand or after muddy races: Reinstall drain bolt, fill with distilled water, run engine briefly, then drain again.
- Fill with new coolant through the radiator cap opening. Pour slowly and use the funnel to avoid spills. Most 85cc radiators have a small bleeder screw (often on top of the cylinder head) – loosen to bleed trapped air as you fill. When coolant seeps out, retighten the bleeder.
- Top off coolant until it reaches the bottom of the filler neck.
- Reinstall radiator cap securely.
- Reattach radiator shrouds and torque all bolts to spec.
- Start the engine and let it idle until it reaches operating temperature. Check for leaks at the drain bolt and hoses. Switch off and let the engine cool, then recheck the coolant level. Top up if needed.
Critical Tips for the 2024 TC85BW
- Never use tap water with coolant – minerals can corrode the lightweight aluminum radiator and cylinder.
- Check for debris or bent fins on the radiator and carefully straighten any bent fins for optimal cooling.
- Always monitor coolant level before and after hard rides, especially after muddy or sandy conditions which can increase engine heat.
- If coolant contacts your skin or eyes, rinse immediately and change contaminated clothing.
Maintaining Peak Performance
Follow the factory service interval for coolant changes as outlined in your TC85BW Owner's Manual. Frequent changes prevent overheating and protect the specialized powervalve and aluminum cylinder unique to this generation. Keeping fresh coolant is one of the simplest ways to ensure your Husqvarna delivers championship-level power every ride.
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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.