How to Change the Coolant on a 2013 Honda CRF150R Big Wheel
Shop parts for a 2013 Honda CRF150R Dirt Bike.
Maintaining your Honda CRF150R Big Wheel is vital for reliable performance on the track or trail. Keeping the coolant fresh provides essential protection against overheating and corrosion, especially since the CRF150R operates at higher temperatures due to its competition-tuned engine. This MotoSport.com guide walks you through the process from start to finish, with tips specific to your 2013 model.
Essential Tools and Supplies
- Fresh, high-quality coolant (engine ice or equivalent; never use plain tap water—distilled water only for flushing)
- Drain pan
- 8mm socket or wrench (for the water pump drain bolt)
- Rags and gloves
- Funnel
Step-by-Step Coolant Change Procedure
-
Preparation:
Ensure the engine is completely cool. This avoids burns and prevents pressurized hot coolant from escaping the system. -
Access the Radiator:
Remove any shrouds or covers if necessary to reach the radiator cap. Set them aside. -
Remove the Radiator Cap:
Open the cap slowly to release pressure. -
Locate the Drain Bolt:
Find the water pump on the lower right side of the engine—the lowest bolt is the coolant drain. -
Drain the Coolant:
Position your drain pan beneath the bolt. Use the 8mm wrench to loosen and remove the drain bolt. Let the old coolant completely drain out.
Note: Use rags to catch any spillage and avoid staining your garage floor. Properly dispose of your used coolant according to local regulations. -
Flush the System (Optional but Recommended):
Install the drain bolt temporarily. Fill the radiator with distilled water, then remove the bolt again to flush out remaining residue. Repeat until the water runs clear. -
Reinstall the Drain Bolt:
Tighten it securely but do not overtighten. Inspect the crush washer for wear and replace if necessary to prevent leaks. -
Add New Coolant:
Using a funnel, slowly fill the radiator to the very top with your new coolant. -
Burp the Cooling System:
Gently rock the bike from side to side, and slowly kick the engine over several times (without starting it) to circulate the coolant and release any trapped air pockets.
Top off again if needed. -
Reinstall the Radiator Cap:
Confirm that the coolant level is correct, then install the cap securely. -
Check for Leaks:
Start the engine and let it idle until fully warm. Shut off the engine, allow it to cool, and check the coolant level one more time. Add more if necessary.
Inspect all connections for leaks. -
Reinstall Any Removed Parts:
Replace any radiator shrouds or covers.
Model-Specific Tips for the 2013 CRF150R Big Wheel
- The CRF150R Big Wheel uses a performance-oriented cooling system prone to air pocket formation—always burp the system as described above to avoid overheating issues.
- Do not substitute automotive coolants—motorcycle-specific coolants provide better corrosion resistance for the aluminum components in your Honda's engine and radiator.
- If you regularly race or ride hard, inspect your radiator hoses and clamps for wear or leakage when changing the coolant. MotoSport.com offers OEM and upgrade parts if replacements are needed.
- Consult your owner's manual for specific maintenance intervals and confirmed coolant types for your location and riding style.
Final Thoughts
Changing the coolant on your Honda CRF150R Big Wheel is a straightforward job that will keep your machine running cooler and protect your engine for many rides to come. Make this part of your regular maintenance, especially if riding in hot conditions or pushing your bike to the limit on the track.
Related Shopping Categories
Shop Radiators for a 2013 Honda CRF150R Dirt Bike.
Shop Coolant for a 2013 Honda CRF150R Dirt Bike.
Shop Temperature Sensors for a 2013 Honda CRF150R Dirt Bike.
Shop Tools for a 2013 Honda CRF150R Dirt Bike.
Shop Radiator Hoses for a 2013 Honda CRF150R 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.