How to Change the Coolant in a 1994 Kawasaki KX60

Shop parts for a 1994 Kawasaki KX60 Dirt Bike.

Keeping your 1994 Kawasaki KX60 performing at its best means not overlooking maintenance essentials like cooling system care. Here–s a proprietary MotoSport step-by-step guide showing you exactly how to change the coolant on your KX60, ensuring reliable motocross performance and engine protection ride after ride.

Tools & Supplies Needed

  • Phillips screwdriver
  • Socket wrench (8mm or 10mm, depending on drain bolt size)
  • Fresh motorcycle-grade coolant (ethylene glycol or a non-silicate formula for aluminum radiators)
  • Drain pan
  • Rags
  • Funnel or squeeze bottle for filling
  • Safety gloves & eye protection

Preparation Steps

  • Allow the engine to cool completely before attempting to remove the radiator cap. Hot coolant can cause severe burns.
  • Stabilize the bike on a stand or level surface for safety and better access.

1. Remove the Radiator Cap

  • Locate and unscrew the radiator cap on the left side of the KX60–s radiator.
  • If your KX60 features a bleeder screw on the other side of the radiator, loosen or remove this as well. This step allows air into the system to help the coolant flow out smoothly and prevents vacuum lock.

2. Drain the Old Coolant

  • Position a drain pan under the water pump or the cylinder coolant drain bolt (typically on the right side of the engine).
  • With the cap open and the bleeder screw out, remove the coolant drain bolt (8mm or 10mm socket).
  • Allow all coolant to completely drain into your pan.
  • Check the drained coolant for contamination or debris, which could signal internal engine or gasket wear.

3. Inspect Related Components

  • Examine the radiator cap seal for cracks or deformation — replace the cap if there–s any damage.
  • Briefly check visible hoses for aging, swelling, or leaks, especially since the KX60 is a vintage model where rubber may break down.

4. Reinstall the Drain Bolt

  • Secure the drain bolt back into place — always start the threads by hand to avoid stripping.
  • Gently torque the bolt until snug, being careful not to overtighten and risk damaging the threads or crush washer.

5. Add Fresh Coolant

  • Using a funnel, pour new coolant into the radiator up to the bottom of the filler neck.
  • If equipped, also fill the overflow tank to the proper level mark.
  • Reinstall & tighten the bleeder screw, if removed.

6. Bleed the Cooling System

  • Start the KX60 and run the engine for a few minutes with the radiator cap off to circulate coolant and allow trapped air to escape.
  • Watch for bubbling & monitor coolant levels – add fluid as necessary until the level stabilizes and bubbles diminish.
  • Once the engine is warm and air is purged, turn off the bike and top off as needed.
  • Secure the radiator cap, ensuring it locks past the safety catch.

Final Checks & Safe Disposal

  • Wipe away any spilled coolant from the frame, plastics, or engine surfaces with a rag.
  • Properly dispose of the old coolant according to your local hazardous material regulations.

KX60 Model-Specific Notes

  • The KX60, renowned for its simplicity and low weight, uses an aluminum radiator system that demands a non-silicate, corrosion-inhibiting coolant for longevity.
  • Inspect all hoses and clamps closely; after years of use, original clamps and seals may need replacing to prevent leaks.
  • Owners report that the radiator fill and drain setup is straightforward, but periodic system checks help maintain optimal engine temperature – critical for the small-displacement two-stroke engine notorious for running hot under heavy load.

Changing your coolant ensures the KX60's engine stays protected season after season. For any required replacement parts — from radiator caps to hoses — MotoSport has everything you need. Happy 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.