How to Change the Coolant in a 2012 Yamaha PW50 – MotoSport DIY Guide

Shop parts for a 2012 Yamaha PW50 Dirt Bike.

The Yamaha PW50 is renowned for its simplicity and reliability, making it an ideal starter bike for young riders. However, when it comes to basic maintenance like coolant changes, there's a unique point for PW50 owners: the 2012 Yamaha PW50 features an air-cooled two-stroke engine and has no liquid cooling system. This means that the PW50 does not require traditional coolant changes like liquid-cooled motorcycles. Instead, maintenance routines for the PW50 focus on aspects like premix ratios, oiling, and ensuring the air-cooling fins remain clean and unobstructed.

Key PW50 Cooling System Notes

  • No radiator or coolant to flush - The PW50 dissipates heat via air flowing over its cooling fins.
  • Maintenance focus: Keep the cylinder and head cooling fins free from mud, dirt, and debris.
  • Check for bent, broken, or excessively clogged fins regularly, especially after muddy rides.
  • Use a soft brush and gentle water pressure to clear away buildup. Avoid sharp objects that can damage the fins.

What You Should Maintain Instead

  • Air Filter: Clean or replace the air filter frequently to avoid overheating from restricted air flow.
  • Oil/Premix Ratio: Always use the recommended two-stroke oil/petrol mixture per Yamaha's specifications.
  • Fuel/Oil Lines: Inspect regularly for cracks or leaks to ensure proper lubrication and cooling.

PW50 Owner Tips

  • Never attempt to open or look for a radiator cap; the PW50 does not have one.
  • If your PW50 seems to run unusually hot, check the air-cooling path first. An obstructed or dirt-caked cylinder head is a leading cause of performance issues.
  • Always cool the bike before cleaning to avoid cracking the cylinder head or warping fins.
  • Adhere to Yamaha's oil/premix ratio for the best performance and engine longevity.

Maintaining Your PW50 with MotoSport

While traditional coolant changes do not apply to your 2012 PW50, proper upkeepingincluding oil, filters, and cleaning suppliesis crucial. MotoSport.com stocks PW50-compatible parts & maintenance essentials to keep your bike running strong and cool, the way Yamaha intended.

Related Shopping Categories

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Shop Radiator Hoses for a 2012 Yamaha PW50 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.