How to Change the Coolant in a 2018 Husqvarna TC50
Shop parts for a 2018 Husqvarna TC50 Dirt Bike.Maintaining your 2018 Husqvarna TC50 means paying attention to its cooling system–a critical element for keeping this performance-focused mini motocrosser running at peak temperature. Coolant change intervals are often overlooked, but regularly flushing and refilling the system ensures reliable operation and longevity for your TC50’s engine.
Unique Considerations for the 2018 TC50:
- The TC50 uses a liquid-cooled, single-cylinder engine. The coolant path is compact, so debris and sediment can build up quickly from track use.
- This model is notorious for overheating if the water pump impeller is worn or coolant is low. It’s common to upgrade the impeller with a part from the larger TC65/SX65.
- Always check your coolant type. Many TC50 owners prefer high-performance coolant to handle race-day heat; use only recommended non-silicate, phosphate-free anti-freeze for aluminum engines.
What You’ll Need:
- Fresh coolant suitable for motocross 2-strokes
- Socket set
- Catcher pan
- Rags, gloves, and goggles
Step-by-Step Guide:
- Prep Your Bike: Ensure the TC50 is upright and completely cool. Place it on a stand for stability.
Remove the side shrouds as needed for easy access to the radiator cap and water pump cover. - Drain the Old Coolant:
- Locate the water pump cover (right-side engine case).
- Place a catch pan under the water pump.
- Remove the radiator cap (top left shroud).
- Remove the coolant drain bolt from the water pump cover. Allow coolant to fully drain. Gently lean the bike side to side to help expel trapped fluid.
- Inspect Components:
- While coolant is draining, check the hoses for cracks, swelling, or leaks.
- Inspect the impeller for signs of wear (many TC50s benefit from upgrading to the SX65/TC65 impeller for improved coolant flow).
- Flush If Needed: If the coolant appears dirty or contaminated, flush with distilled water. Reinstall the drain bolt and refill the radiator with distilled water. Start the engine briefly, then drain and repeat until clear.
- Refill the Coolant:
- Reinstall the drain bolt and torque to the manufacturer’s spec.
- Slowly pour fresh coolant into the radiator until it is just below the filler neck.
- Rock the bike gently to bleed air. Watch for bubbles as the coolant settles.
- Top off as needed.
- Final Steps:
- Reinstall the radiator cap securely.
- Run the engine with the bike upright for a few minutes–watch the gauge and inspect for leaks.
- Once cool, recheck the coolant level and top off as necessary.
Model-Specific Tips:
- The 2018 TC50’s radiator holds a smaller volume of coolant. Use care not to overfill and ensure any air pockets are fully bled.
- If your TC50 rider is experiencing frequent overheating at the track, upgrading the impeller and double-checking coolant level before every ride can be crucial to preventing damage.
Proper cooling maintenance is a must for the Husqvarna TC50, especially if it’s being pushed at youth races or during long practice sessions. Regularly changing the coolant will keep your young rider’s bike running hard all season.
Related Shopping Categories
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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.