How to Change the Coolant in a 1995 Honda CR250 – Complete Guide
Shop parts for a 1995 Honda CR250 Dirt Bike.
Changing the coolant in your 1995 Honda CR250 is a fundamental part of maintenance that keeps your engine running cool and performing at its best. This model uses an aluminum radiator, making the type and condition of coolant especially important to avoid corrosion and overheating. Here’s a step-by-step, MotoSport-exclusive guide for a quick and thorough coolant change, plus specific tips for the 1995 CR250.
Tools & Supplies Needed
- High-quality ethylene glycol-based coolant (formulated for aluminum radiators)
- 10mm socket or wrench
- Drain pan
- New water pump crush washer (recommended)
- Shop rags or paper towels
- Gloves & eye protection
Step-by-Step Coolant Change Procedure
- Let the engine cool completely before beginning. Never remove the radiator cap while the engine is hot.
- Remove the seat and gas tank for full radiator access. The 1995 CR250 design allows easier reach if these are out of the way.
- Remove the radiator cap to release any residual pressure. Place the cap somewhere clean.
- Locate the water pump drain bolt (typically on the right side of the engine at the base of the water pump cover). Position your drain pan beneath this bolt.
- Remove the drain bolt with a 10mm socket. Allow all old coolant to fully drain into the pan.
- For a more complete flush, tilt the bike from side to side gently to help expel trapped coolant.
- Inspect and replace the crush washer on the drain bolt to prevent future leaks. This inexpensive part is easily damaged if reused.
- Reinstall and tighten the drain bolt after draining is complete.
- Add new coolant through the radiator filler neck slowly to avoid air pockets. Fill until the coolant reaches just below the filler neck.
- Gently rock the bike side-to-side to help any trapped air escape.
- Start the engine and let it run for 2–3 minutes with the radiator cap off. Watch for bubbles escaping as air purges from the system. Add more coolant if the level drops.
- Turn off the engine and top off coolant if needed. Replace and securely tighten the radiator cap.
- Check the coolant overflow hose and route. Make sure it’s clear and correctly routed to avoid leaks or coolant loss.
- Reinstall the fuel tank and seat. Double-check for leaks around the water pump and drain bolt.
- After one ride, re-check coolant level and inspect for any leaks around the drain plug and hoses.
Special Notes for 1995 Honda CR250 Owners
- The aluminum radiator on this model is vulnerable to corrosion from improper coolants. Only use coolants certified safe for aluminum engines.
- The water pump crush washer (part number 90463-ML7-000) is a small but critical part for leak prevention—replace it when possible for peace of mind.
- Pay attention to the radiator cap condition. A weak or worn cap can cause overheating by allowing loss of pressure.
- This generation CR250's coolant system is relatively simple—no thermostat—but be meticulous to purge air to prevent hot spots.
Pro Tips
- Inspect all hoses for cracks and hardening. Replace as needed to avoid trackside failures.
- If you're switching to a new coolant brand or type, thoroughly flush the system to avoid mixing incompatible coolants.
- Dispose of old coolant responsibly—it’s toxic to animals and the environment.
With regular coolant changes and the right products, your 1995 Honda CR250 will perform reliably and stay cool even during the toughest rides. Stay on top of maintenance for the best ride experience.
Related Shopping Categories
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Shop Radiator Hoses for a 1995 Honda CR250 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.