How to Change the Coolant in a 1987 Kawasaki KX60
Keeping your 1987 Kawasaki KX60 running cool is vital, especially if you're hitting the track or trail. Coolant breaks down over time and loses its effectiveness, making regular replacement critical for optimum engine performance and longevity. This guide delivers a professional and reliable approach to replacing your coolant, with notes unique to your specific KX60 model.
What Makes the 1987 KX60 Cooling System Unique?
The 1987 Kawasaki KX60 features a two-stroke engine and a simple, compact radiator system. Unlike newer bikes, it doesn't include an overflow reservoir–unlike larger or more recent models, the KX60 requires careful attention to coolant levels and air removal from the system. Take extra care when servicing to prevent air pockets and ensure proper cooling.
Tools & Supplies Needed
- Fresh coolant compatible with aluminum radiators (typically ethylene glycol-based, silicate-free)
- Distilled water (if using concentrate coolant)
- 8 mm or 10 mm socket (for drain bolt)
- Phillips screwdriver
- Drain pan
- Rags for cleanup
- Funnel
- Gloves and safety glasses
Step-by-Step Coolant Change Instructions
-
Let the bike cool fully.
Never open the radiator cap when hot. Hot coolant can cause serious burns. Wait until the engine and radiator are fully cool. -
Remove the radiator cap.
Locate the radiator cap on the left side. Twist to release and set it aside. -
Drain the coolant.
Find the coolant drain bolt at the bottom of the water pump or cylinder (usually an 8 mm or 10 mm bolt with a washer). Place your drain pan underneath and loosen the bolt. If the coolant doesn't flow freely, gently loosen the cap further or tilt the bike. Allow all coolant to drain out. -
Inspect and reinstall the drain bolt.
Check the washer for wear or damage, then thread the bolt back in by hand before fully tightening. Avoid cross-threading and do not overtighten. -
Flush the system (optional, but recommended).
Add distilled water into the radiator, reinstall the cap loosely, start the engine for 30 seconds, and shut off. Repeat the drain process to remove any old coolant residue, then reinstall the drain bolt again. -
Refill with new coolant.
Use a funnel to pour new coolant slowly into the radiator, filling up to the base of the filler neck. If using concentrate, mix it with distilled water as specified by the manufacturer. -
Bleed air from the system.
Gently rock or tap the bike to help release any trapped air. Briefly start the engine and let it idle with the radiator cap off–watch for air bubbles escaping. Top off the coolant as needed. Once bubbles cease, turn off the bike and add more coolant until full. -
Reinstall the radiator cap.
Secure the cap back in place, ensuring it locks down past the safety tab to prevent leaks. -
Check for leaks and recheck the level.
Wipe down any spills, then start the bike and let it warm up thoroughly. Shut it down, allow to cool completely, and check the coolant level again. Top off if necessary.
Extra Maintenance Tips for KX60 Owners
- The KX60's simple cooling system lacks a recovery bottle, so any significant coolant loss should be investigated immediately for leaks or air in the system.
- Check coolant condition after every few rides, especially if riding in hot weather or muddy terrain.
- Inspect radiator fins for damage and clear debris–dirt accumulation can quickly lead to overheating.
- Always use the correct coolant type to avoid corrosion or deposits in the narrow coolant passages.
Staying proactive about cooling system maintenance on your classic 1987 KX60 ensures you can ride longer and push harder without risking engine damage–keep it running cool and performing at its best.
Related Shopping Categories
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Shop Tools for a 1987 Kawasaki KX60 Dirt Bike.
Shop Radiator Hoses for a 1987 Kawasaki KX60 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.