How to Change the Coolant in a 2016 Kawasaki KLX140R 17/14
Shop parts for a 2016 Kawasaki KLX140R 17/14 Dirt Bike.
Keeping your 2016 Kawasaki KLX140R 17/14 running cool takes more than just routine rides – a fresh coolant change is key to consistent, reliable performance. Follow this step-by-step guide designed specifically for your KLX140R 17/14. Whether you are making laps at the track or carving new lines on technical trails, maintaining the cooling system ensures your engine stays healthy and delivers the power you expect.
What Makes the KLX140R 17/14 Model Unique?
- The KLX140R 17/14 features a compact, air-cooled four-stroke engine and a robust cooling system that is simple to service, but sensitive to contamination from old or degraded coolant.
- Access panels and component placement are designed for easy maintenance, making a coolant change straightforward with basic tools.
- This model's relatively small coolant capacity means more thorough draining & flushing is essential to avoid mixing old & new fluids.
What You Need
- Fresh, manufacturer-recommended coolant (avoid automotive coolants with silicates that can damage water pump seals).
- 10mm socket & ratchet
- 8mm socket (for side panels as needed)
- Drain pan
- Funnel
- Clean water (filtered or distilled – for flushing if desired)
- Rag for cleanup
- Protective gloves
Step-by-Step Guide
- Cool Engine
Never begin a coolant change when the engine is hot. Let your KLX140R sit until the radiator and hoses are cool to the touch. - Access Radiator & Overflow Reservoir
Remove the left side panel with an 8mm socket to reveal the overflow reservoir. Locate the radiator cap at the top of the left radiator. Place your drain pan beneath the water pump on the right side of the engine. - Drain Old Coolant
Remove the radiator cap. With the pan in place, use a 10mm socket to remove the coolant drain bolt (typically located at the lowest point of the water pump cover). Coolant will begin draining immediately.
Pro tip: Loosening the overflow reservoir cap and tilt the bike slightly upright (not on the side stand) to help old fluid flow out completely. - Flush (Optional but Recommended)
After draining, reinstall the drain bolt and fill the system with filtered or distilled water. Reinstall the radiator cap, start the bike, and let it idle for a minute. Shut off, let cool, then repeat the drain process. This helps eliminate residual debris and old coolant. - Refill with Fresh Coolant
With the bike upright, reinstall the drain bolt (tighten to manufacturer torque spec). Using a funnel, slowly pour your new coolant into the radiator neck until full. Fill the overflow reservoir up to the indicated fill line. - Bleed the System
On the KLX140R, gently squeeze the radiator hoses to encourage trapped air to the surface, topping off the radiator if needed. Keep the radiator cap off, start the bike, and let idle for a minute; watch for air bubbles. Replace the radiator cap once bubbling slows or stops.
Check the overflow reservoir again and top off if necessary. - Final Checks – Test Run
Wipe up spills, reinstall panels, and start the engine. Warm it fully, then turn off and let cool. Check for leaks around the drain bolt, radiator, and hoses.
Additional Tips for KLX140R 17/14 Owners
- Inspect hoses for cracks or hardening during any coolant service - replace if needed.
- Interval: Kawasaki recommends changing coolant every two years, but rural or aggressive off-road riders may benefit from annual service.
- This model's radiator is exposed - keep it clean and free of mud for best cooling performance.
With just basic tools and about 30 minutes, you can protect your KLX140R 17/14 against overheating and keep it ready for action all season long. Always use the proper coolant type, dispose of old fluid responsibly, and consult your owner's manual for specific torque specs and maintenance intervals.
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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.