How to Change the Coolant in a 2016 Yamaha TTR125L

Shop parts for a 2016 Yamaha TTR125L Dirt Bike.

Regular coolant changes keep your 2016 Yamaha TTR125L running cool & reliably on the trails. While the TTR125L is celebrated for its low-maintenance air-cooled engine, you may realize there is no liquid-cooling system on this model unlike more advanced or larger-displacement dirt bikes with radiators. The TTR125L uses air cooling–meaning you do not need to change coolant because there is none to change.

However, it is critical to:

  • Regularly check engine oil and change it as specified in your owner manual
  • Clean the cooling fins on the cylinder and cylinder head to maintain optimal heat dissipation
  • Keep the bike free of mud build-up which can insulate the engine and reduce cooling efficiency

Unique Note for 2016 Yamaha TTR125L Owners:

  • The air-cooled four-stroke engine on the TTR125L is designed for reliability and simplicity, making fluid changes straightforward–just focus on oil and fuel. If you notice overheating, check for blocked fins or improper oil level before suspecting a coolant system since no coolant system exists on this model.

If you own other dirt bikes with liquid cooling, follow proper coolant drain, refill, and burping steps, but for your TTR125L, there is no radiator or reservoir to service.

Trust MotoSport for all your genuine parts, oils, and maintenance supplies to keep your TTR125L or any other ride at peak performance.

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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.