How to Change the Oil in a 2022 Honda CRF125FB

Shop parts for a 2022 Honda CRF125FB Dirt Bike.

Changing the oil in your 2022 Honda CRF125FB is a straightforward task that’s crucial for ensuring your engine’s longevity and performance. This blog is tailored for MotoSport.com users and details every step of the process, including the tools needed, step-by-step instructions, and important model-specific tips for the CRF125FB.

Tools and Materials Needed

  • 17mm socket (deep well or with extension recommended)
  • Socket wrench
  • Drain pan for used oil
  • Funnel
  • Beaker or measuring cup (for precise oil measurement)
  • Rags (for cleaning up spills)
  • New crush washer (for the drain bolt)
  • Torque wrench (capable of inch-pound and foot-pound measurements)
  • Motorcycle-specific 10W-30 or 10W-40 oil (Honda GN4 or equivalent)

Oil Specification and Capacity

  • Oil Capacity: 0.9 quarts (800 ml or 850cc) (do not overfill.)
  • Recommended Oil: 10W-30 or 10W-40, motorcycle-rated (wet clutch compatible)

Step-by-Step Instructions

  1. Warm Up the Engine
    Start your CRF125FB and let it idle for 3–5 minutes. Warming up the engine heats and thins the oil, allowing it to drain more completely and carry out particulates.
    Tip: The engine should be warm to the touch, but not hot enough to risk burns.
    Specific call-out: This step is important—unwarmed oil drains more slowly and may leave residue behind.
  2. Stabilize the Bike
    Put your CRF125FB on a stand or ensure it’s balanced upright. This ensures the oil drains evenly and completely.
  3. Locate the Drain Plug
    The drain bolt is at the center-bottom of the engine, accessible through a notch in the skid plate for your 17mm socket.
    Model-specific note: There is no separate oil filter on the CRF125F/CRF125FB—this makes frequent oil changes even more important.
  4. Remove the Drain Plug and Crush Washer
    Use the 17mm socket and loosen the drain bolt. Allow the oil to fully drain into your pan.
    Replace the crush washer with a new one to prevent leaks.
    Tip: Let the oil entirely drip out—don’t rush this step.
  5. Reinstall the Drain Plug
    Install the drain plug with the new crush washer and hand-tighten. Finish tightening with the torque wrench to 18 ft-lbs (216 in-lbs)—do not overtighten, as this may strip the threads or damage the case.
  6. Add New Oil
    Remove the oil fill cap, insert a funnel, and pour in 0.9 quarts (850cc) of motorcycle-specific oil.
    Do not overfill. Measure with a beaker if possible.
  7. Check the Oil Level
    The CRF125FB uses a screw-in dipstick:
    • Screw the dipstick all the way in and then unscrew it to check the level, or (Honda recommends) insert it but do not thread it in while checking.
    • Stand the bike upright and level for an accurate reading.
  8. Start and Recheck
    Start the engine and let it idle for another 3–5 minutes. Shut it off and wait 2–3 minutes, then recheck oil level. Top off if necessary.
  9. Dispose of Old Oil Responsibly
    Always take used oil to a proper recycling center or hazardous waste facility.

Model-Specific Tips and Warnings for 2022 Honda CRF125FB

  • No oil filter: Change oil every 10 hours of riding or as recommended to prevent engine wear, since no filter is catching particulates.
  • Drain bolt torque: Use a torque wrench and set to 18 ft-lbs (216 in-lbs) for the drain bolt.
  • Oil Type: Always use oil rated for motorcycle wet clutches—do NOT use automotive oil.
  • Do NOT over-tighten or strip the drain plug; replacing the crush washer every time helps ensure a proper seal and correct torque.
  • Dipstick method: Check oil without threading in the dipstick for proper reading—simply insert it and remove for the check.
  • Oil Capacity: Less than 1 quart; always measure, as too much oil can harm performance.

Additional Maintenance Reminders

  • Inspect for oil leaks around the drain plug and fill area after changing oil and during first few rides.
  • Log your maintenance date and hours for your records.
  • Change oil more frequently in harsh, dusty, or muddy riding environments.

Conclusion

Regular oil changes on your 2022 Honda CRF125FB are a simple DIY task, but critical for keeping your trail machine in peak condition. With a 17mm socket, some basic supplies, and the right oil, you’ll have the job done in under 30 minutes. Always follow Honda’s specs, use new crush washers, and don’t forget the model-specific tips for flawless maintenance after every ride. For genuine parts, fluids, and expert support, enjoy fast reliable shipping direct from MotoSport.com.

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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.