How to Change the Coolant in a 2013 Kawasaki KLX140R 17/14
Shop parts for a 2013 Kawasaki KLX140R 17/14 Dirt Bike.
Routine coolant changes are essential for keeping your 2013 Kawasaki KLX140R 17/14 running cool, preventing engine damage, and prolonging the life of your dirt bike. This guide provides a complete, easy-to-follow method tailored to your KLX140R's specific needs. Make sure the engine is cool before starting.
What You Will Need
- 10mm and 8mm sockets with ratchet
- New coolant (consult your owner's manual for the recommended type; high-performance motorcycle coolant is preferred)
- Funnel
- Distilled water (if flushing the system)
- Drain pan or suitable container
- Clean rags
- Protective gloves
Step-by-Step Instructions
- Remove Necessary Panels
Use an 8mm or 10mm socket to remove the side panel, exposing the radiator cap and overflow reservoir. The KLX140R's compact frame gives reasonable access once the panel is off, but be careful with the plastics to avoid cracking older components. - Locate the Radiator Cap – Both Fill & Drain Points
The radiator fill cap will typically be on top of the radiator at the left side of your KLX140R. The coolant drain bolt is found at the bottom of the water pump casing. - Drain the Old Coolant
- Place a drain pan underneath the water pump area.
- Remove the radiator cap to release system pressure.
- Loosen and remove the coolant drain bolt; allow all coolant to fully drain into your pan.
- If equipped, detach the overflow reservoir hoses and empty out any remaining coolant.
- Flush the Cooling System (Recommended)
- Temporarily reinstall the drain bolt.
- Pour distilled water into the radiator until full, then reinstall the radiator cap.
- Start the engine and let it idle for a minute. Shut off the bike, allow cooling, then drain the water as before. Repeat until water runs clean.
- Refill with Fresh Coolant
- Ensure the drain bolt is installed and tightened securely (do not overtighten).
- Using a funnel, fill the radiator with fresh, recommended coolant up to the base of the filler neck.
- Fill the overflow reservoir to the indicated "Full" line.
- Bleed Air from the System
- With the radiator cap still off, gently rock the bike side-to-side to help release air bubbles.
- Let the engine idle with the cap off for several minutes (do not allow engine to overheat).
- Top off coolant as needed, then securely install the radiator cap.
- Final Checks
- Inspect for leaks at the drain bolt, hose clamps, and reservoir connections.
- Allow the engine to fully warm up on a short ride, then let it cool down and re-check coolant level in both the radiator and overflow reservoir. Top off if necessary.
Model-Specific Notes for the 2013 KLX140R 17/14
- Your bike's compact engine & chassis mean access is tighter than some full-sized bikes; be patient when working around the radiator and water pump.
- The OEM radiator is aluminum and sensitive to overtighteningalways use gentle torque on bolts and never pry against the radiator fins.
- If you use your KLX140R for aggressive off-roading in hot climates, consider using a high-performance or pre-diluted coolant for extra protection.
- Inspect hoses for signs of cracking or swelling while panels are off. Replacing aging hoses now can prevent future leaks.
Disposal – Environmental Responsibility
Dispose of old coolant properly through a local hazardous waste facility. Do not pour coolant down household drains or onto the ground.
When Should You Change the Coolant?
- Every two years is a safe interval for most riders, or sooner if you notice rusty, cloudy, or darkened coolant.
- Always change after any major engine repair or if overheating is observed.
Keeping your 2013 Kawasaki KLX140R in top condition means routine maintenance like this – and as always, MotoSport.com is here with the parts, tools, and gear you need for every ride.
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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.