How to Change the Coolant in a 2019 Yamaha TTR50: Step-by-Step Guide

Shop parts for a 2019 Yamaha TTR50 Dirt Bike.

Keeping your Yamaha TTR50 running cool and performing at its best means regular coolant changes, even on a mini dirt bike. While the 2019 TTR50 is beloved for its beginner-friendly design and low-maintenance character, changing the coolant at recommended intervals is still key to reliable operation and long engine life. Below you will find a robust, MotoSport-exclusive guide fully tailored to your TTR50's design nuances, plus a model-specific tip you won't want to miss.

What Makes the 2019 TTR50 Unique

The 2019 Yamaha TTR50 stands out from many of its bigger motocross siblings thanks to its air-cooled engine. That means it does not use traditional liquid coolant or a radiator like water-cooled dirt bikes. Instead, the TTR50's cooling is managed via fins on the engine cylinder and head, relying on moving air as you ride. There is no radiator, no water pump, andcriticallyno coolant change is ever required for this model.

For TTR50 Owners: No Coolant Service Necessary. Unless you have installed an aftermarket liquid cooling kit (which is extremely rare and typically reserved for high-performance modifications), your TTR50's stock configuration requires only regular engine oil changes and periodic checks of the engine's exterior for blockage or debris around the cooling fins. The "coolant" for this specific dirt bike model is simply the air around it.

Air-Cooling Tips for TTR50 Longevity

  • Regularly inspect and clear any mud or debris from the cylinder's cooling fins to ensure maximum airflow.
  • Operate the bike as intendedavoid prolonged idling or slow-speed use in extreme heat, as this can overheat an air-cooled engine.
  • Check oil levels frequently; unlike liquid coolant, the engine oil in an air-cooled bike also plays an essential secondary role in temperature control.

Thinking About Other Maintenance?

Even though your 2019 TTR50 is air-cooled and doesn't use liquid coolant, MotoSport has all the essential parts and fluids for routine servicinglike engine oil, spark plugs, air filters, and moreto keep your bike running its best for years to come.

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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.