How to Change the Coolant in a 2013 Honda CRF250L
Regular coolant changes are critical for maintaining your Honda CRF250L's engine performance and longevity. Honda recommends changing the coolant every 2 years or 24,000 miles – whichever comes first. The 2013 CRF250L has a straightforward cooling system, but paying special attention during service prevents leaks and overheating, both common issues if maintenance is neglected.
Tools & Supplies You Will Need
- Silicate-free 50/50 premixed motorcycle coolant
- 5mm Allen key
- 8mm & 10mm sockets with ratchet
- Phillips head screwdriver
- Replacement crush washer (for radiator drain plug)
- Paper towels or rags
- Small funnel
- Drain pan (for old coolant disposal)
Step-by-Step Coolant Change Procedure
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Preparation
- Make sure the engine is completely cool before starting to avoid scalding from hot coolant.
- Place your dirt bike on a stable stand.
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Remove Side Panels & Radiator Cap
- On the radiator (left) side, use a 5mm Allen key to remove the top screw holding the plastic in place to expose the radiator cap.
- On the right side, remove four screws and two plastic retainers to gain access to the coolant reservoir.
- Use a Phillips screwdriver to remove the radiator cap set screw, then remove the radiator cap itself slowly.
- If you have an aftermarket skid plate, remove it for easier access.
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Drain the Old Coolant
- Locate the coolant drain bolt on the lower part of the water pump cover (typically the bolt with a small copper or aluminum washer).
- Position your drain pan underneath.
- Use an 8mm socket to loosen and remove the drain bolt. Allow all coolant to fully drain.
- For a more thorough drain, remove the coolant reservoir cover and empty the overflow tank as well.
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Install New Crush Washer
- After draining, install a new crush washer on the drain bolt to ensure a leak-free seal.
- Reinstall the drain bolt and tighten securely, but do not overtighten (spec: about 9 lbf–ft / 12 Nm).
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Refill New Coolant
- Insert a small funnel into the radiator neck.
- Slowly pour the new silicate-free coolant up to the base of the radiator cap seat.
- Fill the coolant reservoir to the upper fill line as well.
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Remove Air from the System
- Reinstall the radiator cap and any covers or panels you removed.
- Start the engine and let it idle for several minutes to circulate coolant and purge air bubbles.
- Shut the engine off, let it cool, then carefully remove the radiator cap. Top off as necessary. Repeat once if needed until the level stabilizes.
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Check for Leaks & Finalize
- Inspect all joints and bolts for leaks.
- Replace all plastics and skid plate. Dispose of old coolant safely at a recycling center or appropriate facility.
Model-Specific Notes for the 2013 CRF250L
- This bike uses a straightforward coolant system, but missing a crush washer or overtightening the drain bolt can result in leaks – always replace this washer at every service.
- Do not use standard automotive coolant; always use a motorcycle-specific, silicate-free blend designed to protect magnesium alloy components.
- A low coolant level or airlock in the system can quickly overheat the engine, so follow the fill and bleed directions carefully.
- The plastic covers and their retainers can be delicate after years of off-road use – work gently to avoid breaking mounting tabs.
- Service interval: every 24,000 miles or every 2 years. Shorten interval if riding in harsh conditions or storing the bike for long periods.
When to Seek Professional Help
- If you're unsure about the procedure or spot corrosion, coolant contamination, or persistent leaks after service, consult a certified technician for inspection and repair.
Related Shopping Categories
Shop Radiators for a 2013 Honda CRF250L Dirt Bike.
Shop Coolant for a 2013 Honda CRF250L Dirt Bike.
Shop Temperature Sensors for a 2013 Honda CRF250L Dirt Bike.
Shop Tools for a 2013 Honda CRF250L Dirt Bike.
Shop Radiator Hoses for a 2013 Honda CRF250L 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.