How to Change Coolant in a 2020 Husqvarna TC65 – The MotoSport Guide
Shop parts for a 2020 Husqvarna TC65 Dirt Bike.
Changing the coolant in your 2020 Husqvarna TC65 is vital for performance, engine longevity, and keeping your young ripper protected from overheating on the track or trail. The TC65 is known for its robust 2-stroke engine and race-ready cooling system – keeping that system in top shape requires periodic coolant replacement, especially after muddy rides or extended use.
What You Need
- Fresh premixed motorcycle coolant (avoid automotive coolant – use a dirt bike-specific product)
- Drain pan or container
- 8mm or 10mm socket and ratchet (confirm the bolt size with your owner's manual)
- Clean funnel
- Distilled water (optional, for flushing)
- Rags or paper towels
- Protective gloves
Instructions for Draining & Filling Coolant
- Allow Engine to Cool
Never open the radiator cap or work on the cooling system when hot. Wait until the bike is completely cool to avoid burns. - Remove Shrouds (if needed)
On the TC65, some plastics may need to be removed for easier access to the radiator cap and drain bolt. - Release Pressure
Slowly loosen and remove the radiator cap to relieve any built-up pressure. - Locate the Coolant Drain Bolt
On the TC65, the drain bolt is typically at the lowest point of the water pump cover on the right side of the engine. Place your drain pan beneath it. - Remove the Drain Bolt
Unscrew the drain bolt and allow old coolant to fully drain into the pan. You can gently tilt the bike side-to-side to help evacuate all fluid. Inspect the coolant for debris or oil – either one might indicate the need for further engine inspection. - Optional Flush
If the expelled coolant is noticeably dirty or contaminated, reinstall the drain bolt and fill the system with distilled water, run the engine briefly, then drain again. - Reinstall Drain Bolt
Clean and reinstall the drain bolt. Do not overtighten – just snug enough to ensure a seal. - Refill Coolant
Slowly add new coolant to the radiator using a funnel. Fill to the base of the fill neck but do not overfill. The TC65’s radiator only holds a small amount, so pour carefully to avoid spills. - Bleed Air from the System
Gently rock the bike or squeeze the coolant hoses to help release trapped air bubbles. If your TC65 is equipped with a small bleeder screw on top of the cylinder head or radiator, loosen it briefly until coolant flows out without bubbles, then retighten. - Reinstall Radiator Cap
Make sure the cap is clean and reinstall it securely. - Warm Up the Engine
Start the bike and let it idle until it reaches operating temperature. Then, turn it off and allow it to cool completely before rechecking the coolant level. Top off if necessary.
Special Notes for the 2020 Husqvarna TC65 Owner
- Coolant Compatibility: Only use premixed coolant specifically labeled safe for aluminum and magnesium engine parts – never use tap water as it can lead to corrosion and scale.
- Capacity: The TC65 uses a small cooling system, so volume is critical. Too little coolant will result in overheating; too much can cause overflow. Always check the level after cycling the engine and once the bike has cooled.
- Inspection: Look for leaks at the water pump seal, hose clamps, and the radiator cap. Hoses on the TC65 can become brittle over time, especially after repeated heat cycles or when exposed to mud and cleaning chemicals.
- Maintenance Interval: For racing or heavy use, change your coolant at least once a year or if any signs of contamination appear (such as discoloration or debris).
- Environmental Tip: Dispose of old coolant responsibly – never pour it down a drain or onto the ground.
Following these steps makes coolant changes on your 2020 Husqvarna TC65 easy and reliable. Regular maintenance at home helps prevent overheating and keeps your mini-moto machine on track for every checkered flag.
Related Shopping Categories
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Shop Radiator Hoses for a 2020 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.