How to Change the Coolant in a 2013 Husqvarna CR125
Shop parts for a 2013 Husqvarna CR125 Dirt Bike.
Changing the coolant is essential maintenance for your 2013 Husqvarna CR125 to keep both the engine and cooling system performing at their best. This model, known for its lightweight two-stroke engine and high-revving powerband, depends on optimal cooling to avoid overheating – a crucial factor when riding off-road or racing. Follow the proprietary MotoSport guide below for the correct procedure and learn tips specific to your MMY dirt bike.
What You Need
- Fresh, compatible motorcycle coolant
- Clean container for used coolant (for proper disposal)
- Basic hand tools (flathead screwdriver, socket wrench set, pliers)
- Shop rags and protective gloves
Step-by-Step Coolant Change Procedure
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Let the Bike Cool Down
Always ensure the engine is completely cool before starting. Opening the system when hot can cause burns and coolant spray. -
Access the Radiator and Drain System
Remove the seat and side panels if necessary for easier access.
Place your drain container under the water pump, then locate and remove the lower radiator hose clamp or the dedicated coolant drain bolt, typically found on or near the water pump cover. Open the radiator cap slowly to relieve system pressure, allowing coolant to drain fully. -
Flush Out Old Coolant (Recommended)
Reinstall the hose or bolt temporarily, fill the radiator with distilled water, and run the engine for 1-2 minutes (keep a close eye on temps). Shut off, let cool, and repeat the drain process. This helps remove residue and old coolant. -
Inspect for Debris
Check coolant color and look for signs of oil, rust, or debris. If contamination is found, additional flushes are advised. -
Reinstall and Refill
Reattach the hose or install the drain bolt. Carefully fill the radiator with new coolant up to the filler neck. Use a funnel for precision and avoid overfilling. For the CR125, always use coolant formulated for aluminium and magnesium components. -
Bleed and Circulate
Leave the radiator cap off and start the bike. Let it idle until you see coolant circulating or until the thermostat opens (if equipped). Briefly rev the engine to help air bubbles escape. Top off coolant to the correct level as air releases. -
Check Levels and Leak Test
With the engine off and cool, top up the coolant if necessary. Double-check all clamps and connections for leaks before re-installing the radiator cap firmly. -
Final Checks
After your first ride, allow the CR125 to cool completely and recheck the coolant level at the radiator. Top up if needed to account for any remaining air bubbles working out of the system.
Important Notes for 2013 Husqvarna CR125 Owners
- These bikes use a simple, dual-radiator layout. Their small-capacity system means less margin for error – always check that radiators are topped off, especially if riding in hot or technical terrain.
- Only use coolants designed for motorcycles. Standard automotive coolant can damage seals or react with the lightweight magnesium case used in the 2013 CR125.
- The CR125 does not have a pressurized overflow tank; check radiator level directly, not the reservoir.
- Carefully monitor for leaks after installation, as a pinched hose or loose clamp can cause rapid coolant loss.
Proper coolant maintenance ensures your Husqvarna CR125 runs cool and delivers peak performance on every ride. If your cockpit temperature warning light comes on or the bike overheats, stop and inspect immediately.
Related Shopping Categories
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Shop Radiator Hoses for a 2013 Husqvarna CR125 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.