How to Change the Coolant in a 2016 Kawasaki KX100
Shop parts for a 2016 Kawasaki KX100 Dirt Bike.
Maintaining your 2016 Kawasaki KX100 is key to keeping it running at peak performance. An often-overlooked but crucial aspect of dirt bike upkeep is changing the coolant. This step-by-step guide is tailored specifically to the KX100, so owners can ensure proper cooling system care and avoid overheating on the track or trail.
Why Change the Coolant?
Coolant keeps your KX100's engine at an optimal temperature, preventing both overheating and freezing. Over time, coolant degrades, losing its effectiveness and potentially allowing corrosion inside your radiator and engine. Changing it every 40–50 hours of ridingor at least once a yearis recommended for this model.
What You Need
- Socket wrench (10mm is commonly needed for KX100)
- Drain pan
- Funnel
- Distilled water (for flushing)
- Fresh motorcycle coolant suitable for aluminum engines
- New crush washer for drain bolt (optional, but highly recommended)
- Rags for cleanup
- Safety gloves and goggles
Steps to Change the Coolant on your 2016 KX100
- Cool the Engine
Always start with a completely cool engine to avoid burns and ensure safety. - Remove the Radiator Cap
Locate the radiator cap on the left side of the bikeremove it slowly to release any pressure. - Find the Drain Bolt
On the KX100, the coolant drain bolt is located on the water pump cover at the lower side of the right engine case. Place a drain pan underneath the bolt. - Drain the Coolant
Use a 10mm socket or wrench to remove the drain bolt. Tilt the bike slightly if needed to ensure all coolant exits the system. Be carefulthe old coolant will drain out quickly. - Flush the System
If your coolant was particularly dirty, replace the drain bolt and fill the system with distilled water. Run the engine for a minute (with the radiator cap on), then let it cool and drain again. This step is crucial for removing any lingering debris or old fluid. - Inspect the Crush Washer
Before reinstalling the drain bolt, check the crush washer. Replace it if flattened or worn—this helps prevent leaks. - Refill with Fresh Coolant
Reinstall the drain bolt securely. Pour in the fresh coolant using a funnel until it reaches the base of the radiator neck. Bleed air by gently squeezing the radiator hose or tilting the bike. - Remove Trapped Air
Start the engine with the radiator cap off (be cautious of splashing). Let the engine run briefly, allowing any air bubbles to escape. Top off coolant as needed, then reinstall the radiator cap. - Check for Leaks & Final Inspection
Inspect around the drain bolt and hoses for leaks. Wipe away any spilled coolant from the engine and frame. Dispose of old coolant responsiblynever pour it down the drain.
Particular Notes for 2016 Kawasaki KX100 Owners
- Coolant Type: The KX100 uses an aluminum radiator, which requires a silicate-free, motorcycle-specific coolant. Avoid automotive coolants with silicates or phosphates, as these can damage the cooling system.
- Drain Bolt Caution: The drain bolt is easily accessible, but overtightening can strip the threads on the water pump cover. Tighten just to manufacturer spec.
- Mixing Coolants: Never mix coolant types—flush thoroughly if switching brands or chemical types.
- Service Schedule: Regularly inspect the coolant level prior to every ride for best longevity. Low coolant can rapidly overheat the KX100's high-revving 2-stroke engine.
Proper coolant maintenance is an easy step towards protecting your KX100's performance and longevity. Take the time to check and change it, and you'll ride with confidence knowing your engine is protected from extreme temps, track after track.
Related Shopping Categories
Shop Radiators for a 2016 Kawasaki KX100 Dirt Bike.
Shop Coolant for a 2016 Kawasaki KX100 Dirt Bike.
Shop Temperature Sensors for a 2016 Kawasaki KX100 Dirt Bike.
Shop Tools for a 2016 Kawasaki KX100 Dirt Bike.
Shop Radiator Hoses for a 2016 Kawasaki KX100 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.