How to Change the Coolant in a 2024 KTM 350SXF: Step-by-Step Guide
Shop parts for a 2024 KTM 350SXF Dirt Bike.
Fresh coolant keeps your 2024 KTM 350SXF running at its best by protecting against overheating – a must for riders pushing their limits on the track or trail. If it is time for a coolant change, follow this MotoSport-exclusive guide designed for your specific model.
What You Need
- Phillips and flathead screwdriver
- 8mm socket or wrench
- Drain pan or catch container
- Funnel
- New coolant (ensure it meets KTM specs—silicate-free, ready-mix for aluminum engines is best)
- Rubber gloves and rags
Preparation – Safety First
- Allow your engine to cool completely before beginning the process. Opening the radiator when hot can lead to injuries from pressurized steam or coolant.
Step 1: Remove the Radiator Cap
- On the right side of your 2024 KTM 350SXF, locate the radiator cap. Use a rag to avoid contact with any residual pressure and twist off the cap slowly to release any remaining pressure.
Step 2: Locate and Remove the Drain Bolt
- Position your drain pan under the water pump area. On KTM 350 engines, the drain bolt is typically an 8mm bolt at the lowest point of the water pump cover (right side engine case).
- Loosen and remove this bolt to allow all coolant to drain. Opening the radiator cap first helps the system drain quickly.
- If desired for a thorough flush, you may add distilled water into the radiator, let it drain, and repeat until the water runs clear.
Step 3: Reinstall the Drain Bolt
- Check the drain bolt's threads and replace any lost crush washers if needed. Tighten the bolt snugly (do not overtighten).
Step 4: Fill with New Coolant
- Using a funnel, pour the new coolant into the radiator neck.
- For the 2024 KTM 350SXF, fill until the coolant just reaches the bottom of the filler neck opening.
- Bounce the bike gently or lean it side to side to release trapped air.
Step 5: Bleeding and Topping Up
- Start the engine and run it briefly with the cap off to circulate coolant and purge air bubbles. Watch for coolant flow and be cautious of spillage.
- Top off the radiator as the level drops, then reinstall the cap.
Step 6: Clean Up and Inspect
- Check for any leaks around the drain bolt and coolant hoses.
- Wipe up spills and dispose of old coolant according to local regulations.
Additional Notes for 2024 KTM 350SXF Owners
- Coolant type matters: Use premium, silicate-free coolant meant specifically for high-performance motocross engines to protect the KTM’s lightweight aluminum system components.
- Bleeding trapped air: The 2024 KTM 350SXF’s dual-radiator design can hold air pockets. After your first ride with new coolant, double-check the level when the engine is cool and top off if needed.
- Service intervals: KTM generally recommends changing coolant every two years, or more often if you race or ride in extreme conditions.
Staying ahead on maintenance keeps your ride performing at its peak. For all the parts, fluids, and tools you need, shop MotoSport’s exclusive lineup for the 2024 KTM 350SXF.
Related Shopping Categories
Shop Radiators for a 2024 KTM 350SXF Dirt Bike.
Shop Coolant for a 2024 KTM 350SXF Dirt Bike.
Shop Temperature Sensors for a 2024 KTM 350SXF Dirt Bike.
Shop Tools for a 2024 KTM 350SXF Dirt Bike.
Shop Radiator Hoses for a 2024 KTM 350SXF 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.