How to Change the Coolant in a 2013 Yamaha WR250F
Shop parts for a 2013 Yamaha WR250F Dirt Bike.
If you own a 2013 Yamaha WR250F, keeping your cooling system fresh is essential for performance and engine longevity. Changing the coolant is a straightforward maintenance job that anyone comfortable with basic tools can handle. If this is your first time servicing your WR250F, here are exclusive, model-specific instructions custom-tailored for MotoSport customers — plus, some unique tips for this particular Yamaha dirt bike.
What You Need
- Fresh Yamaha-approved coolant or high-performance dirt bike coolant
- Distilled water (for flushing)
- 8 mm socket and ratchet
- Funnel
- Drain pan
- Towel or rag
- Phillips screwdriver (if side panels need removal)
- Optional: torque wrench
Instructions
- Let the bike cool completely. Never open the radiator cap on a hot engine. Pressure can cause hot coolant to spray.
- Remove the radiator cap. With the engine cool and the bike upright on a stand, use a rag to slowly open the radiator cap to release any residual pressure.
- Remove the drain bolt. Locate the coolant drain bolt on the water pump cover – it typically requires an 8 mm socket. Place your drain pan beneath the bolt and remove it. Allow all old coolant to drain out.
- Flush the system. Reinstall the drain bolt loosely and fill the radiator with distilled water. Put the cap on, start the bike, and let it idle for several minutes. Shut it off, let it cool, remove the drain bolt again, and let the water flush out any remaining old coolant. Repeat if the system was very dirty.
- Replace drain bolt. Make sure the drain bolt washer is in good condition and torque the bolt to spec (check owner's manual for exact torque).
- Fill with fresh coolant. Using a funnel, slowly refill the radiator with new coolant. On the 2013 WR250F, carefully pour the coolant to avoid air bubbles, as pockets can cause overheating. Fill up to the bottom of the radiator filler neck.
- Bleed the system. With the radiator cap off, tilt the bike side to side gently to help air escape. Top off the coolant as any air comes out.
- Check the coolant reservoir. The 2013 WR250F features a coolant overflow reservoir – be sure to fill this to the Full mark. It is often tucked beneath a side panel, which may require removal with a Phillips screwdriver.
- Reinstall the radiator cap and panels. Reinstall any side panels or shrouds you removed. Double-check for leaks around the drain bolt and hoses.
- Start the engine. Warm the bike up, then shut it down and let it cool. Recheck the coolant level in both the radiator and reservoir and adjust if necessary.
Model-Specific Notes for the 2013 WR250F
- Coolant Capacity: The 2013 WR250F holds approximately 1.16 quarts (1.1 liters) of coolant.
- Overflow Reservoir: Be prepared for a tricky reservoir location – Yamaha tucked it behind the side panel, requiring extra patience (and possibly panel removal) for access.
- Frequent Flushing: If you ride aggressively or often in muddy conditions, consider flushing the system more frequently than the manual recommends.
- Coolant Type: Always use a high-performance motorcycle coolant – not automotive coolant – to prevent corrosion and overheating. Engine Ice and similar products are popular for four-strokes like the WR250F.
Why Routine Coolant Changes Matter
Old coolant loses its ability to transfer heat and can allow scale or mineral deposits to form, impacting engine performance. The WR250F's high-revving, lightweight engine relies on a clean, efficient cooling system – dirty or neglected coolant can lead to premature wear, overheating, or engine damage.
Final Tips
- Always check for leaks after the first few rides.
- Dispose of old coolant responsibly – it's toxic to pets and the environment.
Related Shopping Categories
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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.