How to Change the Oil in a 2016 Honda CRF250X: Complete Guide

Shop parts for a 2016 Honda CRF250X Dirt Bike.

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Tools and Supplies You Will Need

  • 10mm and 12mm sockets with ratchet
  • Oil drain pan
  • Honda GN4 10W-40 or 10W-30 oil (amount per manual: approx. 0.73 L (0.77 US qt))
  • Replacement oil filter
  • Replacement crush washer for drain bolt
  • Funnel
  • Gloves and shop towels
  • Torque wrench (optional but recommended)
  • Stand (with center opening is helpful)

Model-Specific Call-Outs for the 2016 Honda CRF250X

  • The CRF250X uses separate oils for the engine and transmission—both should be changed regularly, but the process described below focuses on the engine oil and oil filter.
  • The engine oil drain plug is on the right-hand side of the bike, under the engine, while the transmission drain plug is on the left, in front of the shifter shaft. Be sure you are working on the correct drain bolt for each fluid change (don’t confuse the two).
  • Always use a new crush washer when reinstalling the drain plug.
  • After refilling transmission oil, use the check bolt to ensure proper fill—wait until oil starts to trickle from the check hole with the bike level.

Step-By-Step Oil Change Instructions

  1. Warm up the engine:
    • Run your CRF250X for about 3-5 minutes. This helps the oil flow better and removes more contaminants when drained.
  2. Place the bike securely on a stand (ideally with a hole in the center for easy draining).
  3. Remove the skid plate if installed:
    • Use your 10mm socket to unbolt the skid plate. Some models have opening for drain access, but full removal gives easier access and prevents messes.
  4. Remove the engine oil drain bolt:
    • The engine oil drain bolt is on the right side, underneath the engine. Use a 12mm socket to remove it.
    • Let the oil fully drain into your oil catch pan. Optional: Tilt the bike carefully side to side to ensure all old oil is out.
    • Inspect the old oil for debris or metallic shavings—excess can indicate engine wear.
  5. Remove and replace the oil filter:
    • The oil filter cover is on the right side of the bike. Remove the cover bolts and take out the old filter.
    • Install the new filter as per the direction indicated (usually “OUTSIDE” faces out).
    • Replace the cover, ensuring the O-ring is properly seated (replace if damaged).
  6. Install new drain bolt washer and reinstall bolt:
    • Use the new crush washer on the drain plug to prevent oil seepage.
    • Thread the plug in by hand to avoid cross-threading. Tighten to the manufacturer’s torque spec (typically around 12 lb-ft–double-check your manual).
  7. Refill the engine oil:
    • Remove the oil fill cap on the right side of the engine.
    • Using a funnel, pour in about 0.73 L (0.77 US qt) of new oil.
    • Replace the filler cap.
  8. Check oil level:
    • With the bike level, start the engine and let it idle for a minute.
    • Shut it off and wait one minute. Check level using the dipstick without screwing it in.
    • Add oil if needed to bring level within the recommended range.
  9. Inspect for leaks:
    • Double check around the drain plug, oil filter cover, and fill cap. Wipe away any drips and address leaks before riding.

Pro Tips for CRF250X Owners

  • Use only motorcycle-specific oil (like Honda GN4 or equivalent) to protect the wet clutch.
  • Change oil more frequently under harsh conditions (racing, dusty rides, or hot climates).
  • If you struggle checking transmission oil (no flow from inspect hole), run the bike hot, rest on a level surface, and wait a minute—hot oil flows easier.
  • Always note the difference in engine vs. transmission drain bolts and oil types.

Conclusion

Changing the oil on your 2016 Honda CRF250X is a straightforward process if you follow these steps and use the right tools. Routine maintenance not only extends the life of your dirt bike but ensures maximum performance on the trail or track. For more proprietary dirt bike maintenance tips and parts, visit MotoSport.com—your source for everything Honda off-road.

Related Shopping Categories

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Shop Oil Fillers and Drain Plugs for a 2016 Honda CRF250X 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.