How to Change the Coolant in a 2013 Yamaha WR250R (Dual Sport)
Shop parts for a 2013 Yamaha WR250R Dirt Bike.
Routine coolant changes are essential for protecting your 2013 Yamaha WR250R's engine and ensuring top performance on every ride. This step-by-step guide shows you how to safely and efficiently replace the coolant, with special notes for your specific model.
What You'll Need
- Yamaha-approved coolant or high-quality motorcycle coolant
- Distilled water (for flushing, if needed)
- Socket set and wrenches (including an 8mm socket)
- Phillips screwdriver
- Funnel
- Drain pan
- Torque wrench
- Clean rags or towels
- New copper washer for drain bolt (recommended)
- Protective gloves and eye protection
Step 1: Preparation and Safety
- Allow the engine and radiator to cool completely before startingopening the cooling system while hot can cause serious burns from pressurized steam or fluid.
- Use a thick rag over the radiator cap and open it slowly to relieve any residual pressure. Press down and turn counterclockwise to remove after any hissing stops.
Step 2: Remove Panels and Access Coolant System
- Remove the seat and both left – right air scoops to access the radiator and reservoir tank.
- Locate the coolant reservoir and gently disconnect the reservoir hose and vent hose for easier removal.
Step 3: Drain the Old Coolant
- Place your drain pan under the water pump (right engine case).
- Remove the drain bolt (on the water pump) along with the copper washer.
- Remove the radiator cap fully to allow coolant to drain.
- Detach the reservoir tank and pour out any remaining coolant. The reservoir on the WR250R can be tight to accessmoving the vent hose makes removal easier.
Step 4: (Optional) Flush the System
- For a thorough clean, reinstall the drain bolt and flush the cooling system by filling with distilled water, running the engine briefly, and draining again. Repeat if old coolant residue remains.
Step 5: Reinstall Components
- Replace the copper washer on the drain bolt with a new one for best sealing.
- Reinstall and torque the drain bolt to 10 Nm (7.2 ft–lb).
- Reinstall the reservoir tank and connect all hoses.
Step 6: Add New Coolant
- Fill the radiator with coolant up to the filler neck using a funnel.
- Fill the reservoir tank to the upper level mark.
- Reinstall the radiator cap securely.
Step 7: Bleed Air and Inspect
- Start the engine and let it run with the radiator cap off for a short time, watching for air bubbles. Top off coolant as needed.
- Shut off engine, let cool, and re-check coolant levels. Always ensure there are no leaks at the drain bolt or radiators.
Step 8: Reassembly and Clean Up
- Reinstall seat and air scoops.
- Dispose of the old coolant properly.
Model-Specific Notes for the 2013 Yamaha WR250R
- The WR250R is fitted with a compact, high-efficiency aluminum radiator and a separate coolant reservoir behind the left side panel—access is sometimes awkward due to tight clearances, so patience is key when removing the reservoir tank.
- Yamaha specifies using coolant approved for aluminum engines to help prevent corrosion and extend cooling system life.
Keep your WR250R running cool on every adventure by regularly inspecting and replacing the coolant. For trusted OEM and performance parts, remember:
Shop parts for a 2013 Yamaha WR250R Dirt Bike. Shop parts for a 2013 Yamaha WR250R Dirt Bike.
Related Shopping Categories
Shop Radiators for a 2013 Yamaha WR250R Dirt Bike.
Shop Coolant for a 2013 Yamaha WR250R Dirt Bike.
Shop Temperature Sensors for a 2013 Yamaha WR250R Dirt Bike.
Shop Tools for a 2013 Yamaha WR250R Dirt Bike.
Shop Radiator Hoses for a 2013 Yamaha WR250R 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.