How to Change the Coolant in a 2014 Kawasaki KLX110: Step-by-Step Guide

Shop parts for a 2014 Kawasaki KLX110 Dirt Bike.

Changing the coolant in your 2014 Kawasaki KLX110 is an essential maintenance task that keeps your bike's engine running cool and efficient, especially during trail rides or in demanding conditions. The KLX110 uses an air-cooled engine, but the process below applies for similar models with a coolant system. Owners should always confirm if their specific bike configuration requires coolant replacement, as not all KLX110 variants have liquid cooling. If your model is air-cooled, there is no liquid coolant to replace; instead, regular engine oil changes are crucial for engine temperature control.

If your bike is one of the liquid-cooled versions or a similar MMY (Make, Model, Year) dirt bike with a radiator and coolant system, follow these proprietary MotoSport steps:

  • Gather Supplies: You will need a new engine coolant (preferably a motorcycle-specific or manufacturer-recommended formula), a drain pan, a funnel, clean rags, a ratchet/wrench set (commonly 8mm, 10mm, or 12mm), and safety gloves.
  • Cool Down: Make sure the engine is completely cool before beginning this process to avoid injury from hot coolant or components.
  • Access the Radiator Cap: Remove the seat and any panels as necessary to access the radiator cap and coolant overflow reservoir if equipped.
  • Drain Old Coolant: Place a drain pan beneath the water pump area. Remove the radiator cap. Locate the coolant drain bolt (typically on the side of the water pump or at the bottom of the radiator). Using the correct socket, carefully remove the bolt and allow all coolant to fully drain out. Some models may have a bleeder screw; open it to allow air to release, enabling complete drainage.
  • Flush the System (Recommended): Reinstall the drain bolt temporarily. Fill the radiator with distilled water, run the engine briefly to circulate, then turn it off and let it cool before draining again. Repeat once if the old coolant was discolored.
  • Refill with New Coolant: With the drain bolt reinstalled and tightened to manufacturer specification, slowly pour new coolant into the radiator up to the filler neck. If your model has an overflow reservoir, fill it to the recommended level marked on the tank.
  • Bleed Air Out: Leave the radiator cap off. Start the engine and let it idle for a few minutes. Squeeze coolant hoses gently to help air bubbles escape. Watch for coolant circulation and top off as necessary. Once air bubbles stop appearing and fluid remains stable at the top, shut off the engine and let it cool. Check and top off coolant level as needed.
  • Replace Radiator Cap and Panels: Securely reinstall the radiator cap and any panels or seat removed. Double-check for leaks at the drain bolt and hoses.
  • Final Level Check: After your next ride, with the bike cool, check coolant levels one more time and top off if necessary. If the coolant continually drops or disappears, inspect for leaks or potential head gasket issues.

Notes for 2014 KLX110 Owners: The standard 2014 KLX110 is air-cooled, so the steps above only apply if your bike is a special edition featuring liquid cooling or you have another MMY bike using a similar process. For most KLX110s, focus on regular oil changes, clean cooling fins, and proper air filter maintenance to ensure optimal running temperature and engine longevity. Always consult your owner's manual for exact procedures and specifications tailored to your bike.

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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.