How to Change the Coolant in a 2019 Husqvarna TC50
Shop parts for a 2019 Husqvarna TC50 Dirt Bike.
Routine cooling system maintenance is critical on your 2019 Husqvarna TC50. The 50cc two-stroke engine runs hot, and ensuring your coolant is fresh prevents overheating, preserves power, and protects vital engine parts. Follow this step-by-step MotoSport guide for a smooth, effective coolant change on your TC50.
What You Need
- Coolant compatible with aluminum radiators (avoid automotive antifreeze containing silicates)
- Phillips or flat-blade screwdriver or appropriate socket/allen wrench (for coolant drain screw)
- Clean funnel
- Drain pan
- Gloves and safety glasses
- Clean rags
Preparation
- Work on a cold engine, and use a stand or have the motorcycle upright and level.
- Give yourself a clean work area, away from dirt and debris, with plenty of space to dispose of old coolant properly.
Draining Old Coolant
- Locate the water pump on the right side engine cover. Place your drain pan directly below the area.
- Remove the radiator cap. This releases system pressure and allows coolant to flow more freely.
- Remove the drain screw (often at the lowest point of the water pump cover) and let all the coolant drain completely into the pan.
Tip: Gently tip the bike from side to side to ensure as much old coolant drains out as possible.
Optional: Flush the System
- If the old coolant is dirty or contaminated, flush the system with distilled water. Replace the drain screw, fill the radiator with distilled water, run the engine briefly (no more than one minute), and drain again. Repeat as needed until the flush runs clear.
Refilling with Fresh Coolant
- Reinstall the coolant drain screw securely.
- Using a funnel, fill the radiator with your chosen coolant up to the bottom of the fill neck. Insert coolant slowly to prevent air pockets.
Note: The TC50 uses a small-volume cooling system. Overfilling is easy - fill only to the bottom edge of the cap seat.
Bleeding Air from the System
- With the radiator cap still off, start the engine and let it run at idle for a few minutes, gently rocking the bike to help dislodge any trapped air.
- Turn off the engine. Top off coolant as needed, then install the radiator cap.
- Check for leaks around the drain screw and hose connections.
Disposal and Clean-Up
- Dispose of used coolant safely according to local hazardous waste regulations–never dump it on the ground or down a storm drain.
- Wipe any spilled coolant from the bike and remove any rags or tools from the area.
2019 Husqvarna TC50: Model-Specific Notes
- The TC50 shares many components with KTM 50cc models, but always use parts and specifications shown for Husqvarna in your MotoSport catalog.
- Like all 50cc youth race bikes, the TC50's small radiator can quickly overheat if air becomes trapped in the system. Take extra care during refilling and bleeding to ensure all air escapes, preventing engine damage or radiator swelling.
- Check coolant level often, especially after the first ride post-change—the system may burp a small amount of air after initial use.
- If you ride in muddy or sandy environments, consider carefully cleaning radiator fins after coolant service to maintain peak cooling performance.
Following these steps ensures your 2019 Husqvarna TC50 remains at the front of the pack and protected from costly overheating issues. For the best results and maintenance longevity, always use MotoSport's selection of OEM and performance parts tailored to your exact machine.
Related Shopping Categories
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Shop Radiator Hoses for a 2019 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.