How to Change the Coolant in a 2017 Kawasaki KX250F: Essential Guide
Shop parts for a 2017 Kawasaki KX250F Dirt Bike.
Regular coolant changes are crucial for the health and performance of your 2017 Kawasaki KX250F, helping to prevent overheating, corrosion, and internal engine damage. This proprietary MotoSport guide breaks down the entire process, highlighting key points specific to your MMY dirt bike.
Key Specs for the 2017 KX250F
- Coolant Capacity: Approximately 1.2 liters (1.3 quarts)
- Coolant Type: Permanent ethylene glycol-based antifreeze with aluminum-safe rust inhibitor
- Drain Bolt Torque: 7.0 N·m (62 in–lb) – use a new gasket when reinstalling
What You Need
- Fresh, recommended coolant (see spec above)
- Catch pan for old coolant
- 8 mm socket or wrench (for drain bolt)
- New drain bolt gasket
- Gloves & rags
Step–by–Step Coolant Change Process
- Ensure the bike is cool: Never remove the radiator cap when hot. Let the engine cool fully to avoid burns.
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Remove the radiator cap in two steps:
- First, loosen slowly to let pressure release.
- Then remove completely.
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Drain the coolant:
- Place a container beneath the water pump on the right side of the engine.
- Remove the coolant drain bolt and its old gasket from the pump cover to allow old fluid to flow out.
- Lean the bike slightly so the radiator filler neck is level to the ground – this helps evacuate air and any residual coolant.
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Inspect the old coolant:
- Whitish, cotton-like deposits = aluminum corrosion.
- Rusty brown color = iron/steel parts are rusting. If either is present, flush the system before refilling.
- Check system components for leaks, damage, or loose connections before proceeding.
- Reinstall the drain bolt: Use a new gasket and tighten to 7.0 N·m (62 in–lb).
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Fill with coolant:
- Pour coolant into the radiator filler neck until just below the bottom of the neck.
- Be patientit may take several pours as air works its way out.
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Burp the system:
- With the cap off, gently rock the bike or squeeze the radiator hoses to help trapped air escape.
- Top off coolant as needed.
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Replace the radiator cap:
- Install it in two stagesfirst to initial resistance, then press down and turn completely to lock.
- Start the engine and let it idle briefly with the radiator cap on. Shut down, cool, and check coolant level again. Top off if neededair bubbles may exit after first warm-up.
Notes & Best Practices for 2017 KX250F Owners
- Use only recommended aluminum-safe coolant to avoid major corrosion in the finely machined parts of your KX250F.
- If switching brands or types of coolant (e.g., from water-based to a premix), flush the system thoroughly to prevent chemical reactions and deposits.
- Immediately wipe any spilled coolant from painted or metal surfaces as it can cause damage.
- Pay extra attention to the rubber hoses and gasketsreplace if dried, cracked, or leaking for best reliability.
- Properly disposing of old coolant is mandatorynever dump it; take it to a recycling center.
Coolant maintenance is one of the simplest ways to prolong your KX250F's engine and keep you riding at your best. Stay ahead of wear, ride safe, and trust MotoSport for your Kawasaki parts & supplies.
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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.