How to Change the Coolant in a 2023 Yamaha PW50: MotoSport Exclusive Guide

Shop parts for a 2023 Yamaha PW50 Dirt Bike.

The 2023 Yamaha PW50 is a legendary beginner-friendly dirt bike, known for its approachable power and low-maintenance design. One important feature for owners to note: the PW50 is air-cooled, not liquid-cooled. This means the PW50 does not require coolant changes because it has no radiator or liquid cooling system. Instead, it relies on airflow to regulate engine temperature, making maintenance much simpler compared to many other youth dirt bikes.

Essential Maintenance Notes for PW50 Owners:

  • No coolant to service: The only fluids you routinely need to monitor are the two-stroke injector oil and final drive oil. There is no radiator, water pump, or related plumbing on the PW50.
  • Oil changes: Check and change the final drive oil as specified in the owner's manual, and keep the two-stroke oil reservoir filled with quality oil to prevent engine damage.
  • Air filter care: Clean and oil the air filter regularly to keep dirt out of the engine and maintain optimal performance.
  • Other checks: Regularly inspect the spark plug, brakes, and throttle for proper operation and wear.

Special Feature – Power Reduction Plate:
The PW50 has a removable power reduction plate in the exhaust. Leaving this in restricts engine performance, which helps new riders. As skills improve, removing the plate (once the exhaust is cool) will unlock the bike's full power. Always re-check gaskets and mounting hardware if you make this modification to prevent leaks and maintain safety.

Proprietary MotoSport Tip:
If you're accustomed to liquid-cooled bikes in your stable, you may be tempted to look for a coolant drain plug or radiator cap—but you will not find one on the 2023 PW50. Maintenance on this model is uniquely straightforward: focus on oil, air, and basic mechanical checks for years of reliable riding.

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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.