How to Change the Oil in a 2019 Honda CRF110F

Shop parts for a 2019 Honda CRF110F Dirt Bike.

Changing the oil in your 2019 Honda CRF110F is a simple job that greatly extends the life and performance of your dirt bike. Below you’ll find a detailed, proprietary guide from MotoSport.com, including all the tools you’ll need, a step-by-step process, and specific call-outs for this model year. Let’s get your CRF110F prepped for more trails.

Tools and Materials Needed

  • 17mm socket and ratchet
  • Oil drain pan
  • Funnel (optional, but helps prevent spills)
  • Rags for cleanup
  • New engine oil (Honda recommends 10W-30, wet clutch compatible; 1.1 US qt / 1.0 L required)
  • New sealing washer for the drain bolt (recommended for each oil change)
  • Torque wrench (for accurate torque on the drain bolt)

Step-by-Step Instructions

  1. Warm up the motorcycle
    • Start your CRF110F and let it idle for 3-5 minutes. Warm oil drains more thoroughly and stirs up impurities in the crankcase for cleaner removal .
    • Turn off the engine and let it sit for 2-3 minutes on a level surface to allow the oil to settle.
  2. Position the bike and prep for draining
    • Park the bike on a flat, stable surface (use a stand if available).
    • Place a drain pan directly under the crankcase–the oil drain bolt is located on the right side, underneath the engine .
  3. Remove the fill cap/dipstick
    • Unscrew and remove the oil fill cap/dipstick on the right side of the engine. This allows oil to drain smoothly and quickly .
  4. Drain the old oil
    • Use a 17mm socket and ratchet to remove the oil drain bolt. Be cautious; the first time, it may be tight .
    • Let the oil fully drain–gently tilt the motorcycle side to side to get all the oil out .
    • Allow to drain for several minutes to ensure the crankcase is as empty as possible.
  5. Replace the drain bolt sealing washer
    • Remove the old sealing washer and replace with a new one on the drain bolt. This prevents leaks and ensures a good seal .
  6. Reinstall and torque the drain bolt
    • Thread the drain bolt back in by hand to avoid cross-threading. Use a torque wrench to tighten to 18 lbf·ft (24 N·m) .
    • CRF110F call-out: Do NOT remove the cam chain tensioner push rod bolt, which is adjacent to the drain bolt. If mistakenly removed, do not attempt to start the motorcycle—contact your dealer immediately .
  7. Refill with new oil
    • Using a funnel, pour 1.1 US qt (1.0 L) of Honda-recommended 10W-30 oil into the fill port. Use oil compliant with wet clutches .
    • If your oil bottle has a spout, you may not need a funnel .
  8. Reinstall the fill cap/dipstick
    • Screw the oil fill cap/dipstick back in securely.
  9. Check the oil level
    • Start the bike and let it idle for 3-5 minutes. Then shut it off, and allow it to sit for 2-3 minutes to let the fresh oil settle.
    • With the bike upright and level, remove the dipstick, wipe it clean, then check the oil level. It should be at the upper mark. Add oil gradually if needed–do not overfill .
    • Dipstick note: The dipstick on the CRF110F only covers a small range. Oil should come up to the top of the crosshatched area on the tip .
  10. Inspect for leaks and finish up
    • Start the bike for another few minutes; look for leaks around the drain bolt and fill cap.
    • Dispose of the old oil properly–never pour down drains or onto the ground. Take it to a recycling or hazardous materials center as directed in your owner’s manual .

2019 CRF110F Model-Specific Call-Outs

  • 2019 and up CRF110F models use fuel injection, so follow the manufacturer’s warm-up times for the most accurate oil level check .
  • Internal Oil Screen: There is an internal oil screen on the CRF110F that should be checked periodically (every few oil changes, or if you notice abnormal debris). Accessing this requires removing the right crankcase cover–see your owner’s manual for details, as you’ll need a new gasket .
  • Drain Bolt Caution: The cam chain tensioner push rod bolt is very close to the drain bolt. Always confirm you are removing the correct bolt; mistaking the two can damage your engine .

Final Tips

  • Always use quality oil rated for wet clutch systems–this will protect both your engine and transmission.
  • Keep records of your oil changes for warranty and resale purposes.
  • If you notice excessive metal in your drained oil, consult with a certified Honda technician.

Changing the oil regularly (every 6-8 hours of riding, or as specified in your owner’s manual) will keep your Honda CRF110F running smoother, longer, and ensure it’s ready for every adventure. For all your CRF110F maintenance parts and oil needs, trust MotoSport.com—your ride, our passion.

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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.