How to Change the Coolant in a 2000 Kawasaki KX60: Step-by-Step Guide

Shop parts for a 2000 Kawasaki KX60 Dirt Bike.

Maintaining proper coolant levels is crucial for the performance and longevity of your 2000 Kawasaki KX60. Coolant not only keeps the engine at optimal temperatures but also helps prevent corrosion within the cooling system. The KX60, renowned for its aggressive two-stroke engine and lightweight frame, benefits greatly from fresh coolant–ensuring riders get consistent performance during every ride. Below you will find MotoSport’s proprietary step-by-step guide to changing the coolant on your 2000 KX60, plus some specific notes on this classic mini-motocrosser.

What You’ll Need

  • Fresh motorcycle coolant (avoid automotive coolants–choose a type specifically designed for motorcycles and compatible with aluminum parts)
  • 8mm or 10mm socket wrench (check your water pump cover bolt size)
  • Phillips screwdriver
  • Clean rags
  • Drain pan or suitable container for old coolant
  • Gloves and eye protection

Step 1: Prepare the Bike

  • Ensure the KX60 engine is completely cool before starting. Hot coolant can cause severe burns.
  • Stand the bike upright on a level surface, using a bike stand if possible.

Step 2: Remove the Radiator Cap

  • Locate the radiator cap on the left side of the bike (under the shroud).
  • Carefully twist and remove the cap. This releases any internal pressure and allows a smooth drain.

Step 3: Locate and Remove the Drain Bolt

  • Find the coolant drain bolt–typically at the lowest point of the water pump cover on the right side of the engine.
  • Position your drain pan directly beneath the bolt.
  • Use your socket wrench to remove the bolt. Be mindful as coolant may begin to flow immediately.
  • If your KX60 has a cylinder drain screw, remove this as well to fully evacuate the system.

Step 4: Allow Complete Drainage

  • Let all old coolant completely drain from the system.
  • You may gently rock the bike to help dislodge any trapped fluid.
  • Inspect the drained coolant for any oil or debris–milky coolant may suggest a gasket issue, which is worth addressing before adding new coolant.

Step 5: Reinstall the Drain Bolt

  • Once the system is fully drained, clean the drain bolt threads and reinstall, tightening securely without over-torquing to avoid stripping the threads.

Step 6: Refill with Fresh Coolant

  • Begin filling the radiator with fresh, pre-mixed motorcycle coolant. Pour slowly to avoid air pockets forming in the cooling system.
  • Fill to the bottom of the filler neck but do not overfill.

Step 7: Bleed the Cooling System

  • Tilt the bike side to side gently or squeeze the lower radiator hose to encourage any trapped air to escape.
  • If your model has a bleeder screw, loosen it slightly until coolant seeps out, then retighten.

Step 8: Check and Clean

  • Wipe off any spilled coolant and double-check the radiator cap and drain bolt for a secure fit.
  • Reinstall the radiator cap, making sure it is fully seated and locked in place.

Step 9: Warm and Inspect

  • Start the engine and allow it to warm up briefly.
  • Shut down, allow the bike to cool, and recheck the coolant level–topping off if needed.
  • Inspect for any leaks at the water pump, drain bolt, and radiator cap.

KX60 Owner’s Model-Specific Notes

  • The KX60’s compact cooling system means coolant changes are fast, but also that air can easily get trapped. Take extra care in the bleed step to avoid overheating.
  • Look for corrosion on radiator fins or deposits in the fill neck, common on older bikes. Cleaning or replacing compromised parts can make a big difference in cooling efficiency.
  • The engine’s two-stroke design thrives on consistent temperatures. Keeping up with coolant changes every season or after major rides is key to engine longevity.
  • Use only high-quality, aluminum-safe coolant–the wrong formula can pit surfaces inside the system.

With fresh coolant, your 2000 Kawasaki KX60 will run cooler and more reliably, ready to hit the track or trail with confidence.

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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.