How to Change the Coolant in a 2020 Kawasaki KLX110L

Shop parts for a 2020 Kawasaki KLX110L Dirt Bike.

The 2020 Kawasaki KLX110L is a legendary pit bike – compact, lightweight, and built for fun. But if you're searching for a coolant change guide, there's something crucial to know about the KLX110L: this model is air-cooled and does not use liquid coolant. No radiator, no hoses, and no coolant to flush or replace—this brings big benefits in simplicity, weight, and maintenance costs.

What does this mean for maintenance? Instead of coolant flushes, KLX110L maintenance primarily focuses on:

  • Engine oil & filter changes – to keep your air-cooled engine running smooth, regular oil changes are especially important.
  • Air filter cleaning or replacement – a clogged air filter can cause overheating on air-cooled engines, especially during hard rides or in dusty environments.
  • Inspection of cooling fins – ensure the cylinder and head fins are free of mud, dirt, and debris to maximize cooling efficiency.

Tips specific for your 2020 KLX110L:

  • Never attempt to add or replace coolant – your engine is not designed for it. Focus on regular oil and filter service.
  • Monitor oil level religiously – since oil helps dissipate heat, running low puts extra stress on the engine, especially in warm riding conditions.
  • Clean the cylinder fins carefully – do not bend or break the cooling fins during cleaning, as proper airflow is essential for air-cooling.

If you notice excessive engine heat, rough running, or oil discoloration, address oil changes promptly and check for airflow obstructions — it's the air flow, not coolant, that keeps your KLX110L cool under pressure.

For genuine parts, performance upgrades, or the best maintenance supplies for your 2020 KLX110L, visit MotoSport's dedicated KLX110L page and keep your ride in peak condition.

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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.