How to Change the Coolant in a 2021 Honda CRF110F: MotoSport Proprietary Guide

Shop parts for a 2021 Honda CRF110F Dirt Bike.

Routine maintenance – including changing the coolant – keeps your 2021 Honda CRF110F running safe and cool, especially important for this model known for its reliable performance and durable air-cooled motor. While the CRF110F typically features an air-cooled engine and does not use liquid coolant in the traditional sense found on water-cooled bikes, owners sometimes refer to "coolant change" when referencing engine oil replacement. This is vital as oil acts as a primary cooling and lubricating agent on this bike.

Why Oil Change Is Critical on Air-Cooled CRF110F

The CRF110F relies on oil for both lubrication and heat dissipation. Honda specifically recommends regular oil changes based on riding intensity and environment. Neglecting this can lead to overheating and premature engine wear.

Step-by-Step Proprietary MotoSport Guide: Changing Engine Oil (Cooling Agent) on 2021 Honda CRF110F

  • Warm the Bike: Start and let the engine idle for 3-5 minutes to warm the oil for easier draining.
  • Turn Off & Prep: After warming, shut off the engine, wait 2-3 minutes for settling. Place the bike on a firm, level surface and locate the oil fill cap/dipstick on the right side.
  • Drain the Oil: Position a drain pan under the crankcase. Remove the oil drain bolt, being careful not to disturb the cam chain tensioner push rod bolt (mistaken removal may require dealer service).
  • Tilt for Complete Drain: Gently tilt the bike from side to side to ensure all old oil is removed.
  • Dispose Properly: Pour drained oil into a suitable container; dispose according to environmental regulations.
  • Replace Sealing Washer: Remove the old sealing washer from the drain bolt, replace with a new one for leak-free performance.
  • Reinstall & Torque: Reinsert the drain bolt, tightening to 18 lbf·ft (24 N·m).
  • Fill New Oil: Add 1.1 US qt (1.0 L) of recommended engine oil. Securely reinstall the oil fill cap/dipstick.
  • Check Level & Leaks: Start the engine, idle for 3-5 minutes. Shut off, hold bike upright on level ground, and verify oil level. Top off if needed (do not overfill). Inspect for leaks.

Model-Specific Notes for 2021 Honda CRF110F Owners

  • This bike does not feature a liquid-cooled system—no radiator coolant service is needed. If upgrades have been made with aftermarket cooling systems, consult product-specific instructions.
  • The O-ring on the drain plug is reusable if undamaged, but replacement is best practice.
  • Honda recommends using high-quality engine oil for sustained heat resistance.
  • Always check the owner's manual for updated intervals and specs tailored to your bike.

CRF110F Care Tips

  • Keep air filter clean for best cooling air flow.
  • Inspect underbody for mud buildup, which can insulate and raise engine temps.
  • After hard riding, let the bike idle before turning off to avoid heat soak.

Maintaining your CRF110F with regular oil changes ensures optimal cooling and performance – even without a traditional liquid coolant radiator system. For genuine parts, recommended oils, and more, Shop parts for a 2021 Honda CRF110F Dirt Bike.

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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.