How to Change the Oil in a 2016 Honda CRF125F – A MotoSport.com Proprietary Guide

Shop parts for a 2016 Honda CRF125F Dirt Bike.

Tools and Supplies Needed

  • 10W-40 or 10W-30 motorcycle-specific engine oil (Honda GN4, Yamalube, Shell Rotella T6, or equivalent; Capacity: approximately 0.9 Qt (850 mL))
  • 17mm socket (preferably a deep socket or used with an extension for better reach)
  • Socket wrench
  • Drain pan
  • Small, narrow funnel
  • New crush washer for the drain bolt (optional but recommended)
  • Clean rag or paper towels
  • Torque wrench (optional, recommended for proper bolt tightening)

Before You Begin: 2016 Honda CRF125F Oil Change Specifics

  • No oil filter: The CRF125F does not utilize an oil filter, so regular oil changes are critical for long-term engine health. Plan to change the oil every 10 hours of riding or as recommended in your owner's manual.
  • Drain plug location: The drain plug is found directly in the center of the skid plate, accessible through a notch designed specifically for this task. No need to remove the skid plate.
  • Be gentle with the drain bolt: Factory torque spec is 18 ft-lbs (216 in-lbs). Overtightening can strip the threads.

Step-by-Step Oil Change Instructions

  1. Warm the Engine
    • Start the bike and let it run for about 3-5 minutes. This warms the oil, allowing it to flow out more easily and remove more contaminants.
    • After warming, turn the engine off and let it sit momentarily so it's safe to handle.
  2. Stabilize the Bike
    • Put the bike on a stand or have someone help you keep it upright and level. Proper leveling ensures all old oil drains and refill measurement is accurate.
  3. Prepare for Draining
    • Place your drain pan below the drain plug through the notch in the skid plate.
    • Have your 17mm socket, wrench, and extension ready.
  4. Remove the Drain Plug
    • Use the 17mm socket (with extension if needed) to loosen and remove the drain plug. Be ready for hot oil to flow rapidly.
    • Watch for the crush washer—it usually comes off with the plug. Inspect it and replace if worn or damaged.
    • Allow all oil to drain for 5-10 minutes until the flow has slowed to drips.
  5. Replace the Drain Plug
    • Install the (new) crush washer onto the plug.
    • Thread the drain plug back in by hand to avoid cross-threading, then tighten with your socket wrench.
    • If possible, use a torque wrench to tighten to 18 ft-lbs (216 in-lbs).
    • Do not over-tighten, as the drain bolt threads are easily stripped on these models.
  6. Add New Oil
    • Remove the oil fill cap/dipstick (right side of the engine).
    • Using the narrow funnel, pour in approximately 0.9 quart (850 mL) of 10W-40 or 10W-30 motorcycle-specific oil.
    • Allow a few moments for the oil to settle.
  7. Check Oil Level
    • Important: When checking, do not screw in the dipstick; set it in the hole and remove to check the level.
    • Add or remove oil as needed to keep it at the full mark with the bike perfectly upright.
  8. Final Steps and Cleanup
    • Reinstall the oil fill cap/dipstick securely.
    • Start the engine, let it idle for 3-5 minutes, then shut it off, wait a couple minutes for oil to settle, and recheck the oil level. Top off if necessary.
    • Wipe up any spilled oil, properly dispose of old oil at a recycling center, and ensure no leaks from the drain plug.

2016 Honda CRF125F Owner Call-Outs

  • No oil filter to change: Service is simpler, but frequent oil changes are essential.
  • Standard 17mm drain plug: Use care not to overtighten as engine casing can strip easily.
  • Skid plate access: Changing oil is quick as the plate is pre-notched for easy drain plug access--no extra removal required.
  • Oil fill measurement: The correct fill is just under 1 quart; always check with the dipstick resting, not threaded.

Recommended Maintenance Interval

  • Change oil every 10 hours of operation, or after rides that are especially hard on the engine (deep mud, high RPM use, etc.).
  • Always use motorcycle-specific oil for clutch and engine protection.

Conclusion

Changing the oil on your 2016 Honda CRF125F is an easy process with minimal tools, made easier by the accessible drain plug and the absence of an oil filter. With regular oil changes and care with torque spec, your CRF125F will provide years of reliable service. For all your parts, tools, and supplies, trust MotoSport.com for genuine and high-quality aftermarket products.

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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.