How to Change the Coolant in a 2012 Husqvarna CR65: A MotoSport.com Guide
Shop parts for a 2012 Husqvarna CR65 Dirt Bike.
Changing the coolant in your 2012 Husqvarna CR65 is essential maintenance to keep your mini motocrosser running cool and trouble-free, especially given the intense demands this race-focused two-stroke enduro places on its cooling system. Follow this proprietary MotoSport guide to flush and replace the coolant properly, help prevent overheating, and ensure your CR65 continues to perform at its peak.
What CR65 Owners Should Know
- Engineered for racing – The CR65 was designed as a competition-ready youth model, lacking features like a fan or overflow bottle, making proper coolant level and quality especially vital.
- Aluminum radiator – These radiators are lightweight for racing but can be prone to corrosion if left with old coolant.
- No reserve or low-coolant warning – Rely on visual checks; regularly inspect your coolant level and color.
Step-by-Step Coolant Change Procedure
- Preparation:
- Allow the engine to cool completely before opening the radiator cap to avoid burns from hot coolant.
- Place the dirt bike upright on a stand and remove the radiator shrouds or any body panels obstructing access to the radiators.
- Draining Old Coolant:
- Remove the radiator cap.
- Locate the water pump drain bolt underneath the right side of the engine (usually at the lowest point of the cooling system); place a drain pan beneath.
- Remove the drain bolt and allow coolant to fully drain.
- Optionally, disconnect the lowest radiator hose for a more thorough drain.
- Flushing (Optional but recommended):
- If old coolant was dirty, refill the system with distilled water, briefly run the engine, then drain again to flush residues.
- Inspection:
- Check the condition of your hoses, clamps, and radiator for damage or leaks. Replace any compromised components.
- Refilling Coolant:
- Reinstall the drain bolt (using a new washer if needed).
- Slowly fill the radiator with new, motorcycle-approved coolant (avoid using plain water or car antifreeze).
- Gently rock the bike side to side to help any air bubbles escape.
- Fill to just below the base of the filler neck.
- Air Removal & Final Checks:
- With the radiator cap off, start the engine and let it idle for a few minutes so remaining air can purge from the system (watch for any overflow).
- Shut off the engine, let it cool, and top off coolant if the level has dropped.
- Reinstall the radiator cap, secure the shrouds, and clean any spilled coolant from the bike.
- Post-Service Inspection:
- After the first ride, recheck the coolant level (with the engine cool) and inspect for leaks.
Recommended Coolant for 2012 Husqvarna CR65
- Use a silicate-free, pre-mixed motorcycle coolant or mix concentrate with distilled water at the specified ratio for your brand.
- Avoid automotive coolants with silicates or phosphates – these can harm aluminum radiators and water pump seals.
Maintenance Interval & Tips
- Change coolant at least once per year or after every race season.
- Inspect the system more frequently if racing in muddy, sandy, or hot environments.
- Never mix different coolant brands without thoroughly flushing the system.
Your 2012 Husqvarna CR65 is a purpose-built racing machine—proactive cooling system maintenance is critical for maximizing engine life and reliability on the track. If you need OEM radiators, hoses, or any replacement parts, MotoSport has you covered.
Related Shopping Categories
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Shop Radiator Hoses for a 2012 Husqvarna CR65 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.