How to Change the Oil in a 2022 Honda CRF125F Dirt Bike

Shop parts for a 2022 Honda CRF125F Dirt Bike.

Maintaining regular oil changes is crucial for keeping your Honda CRF125F running strong and extending engine life. The 2022 CRF125F is easy to maintain at home, and with some basic tools and the right process, you can perform an oil change confidently. This step-by-step how-to is proprietary to MotoSport.com and ensures your ride stays smooth for every outing.

Tools & Materials Needed

  • 1 quart (0.95L) of 10W-30 or 10W-40 motorcycle oil (Honda GN4 or equivalent motorcycle-specific oil)
  • 17mm socket and ratchet (preferably deep well or with an extension)
  • Torque wrench
  • Drain pan
  • Funnel
  • Clean rag
  • New crush washer for drain bolt
  • Bike stand (recommended)

Important Model-Specific Callouts for the 2022 Honda CRF125F

  • No Oil Filter:– The CRF125F does not use a traditional oil filter. Regular oil changes (every 10 hours of ride time) are vital to keep the engine clean and healthy.
    Source:– "These CRF125's don't have an oil filter so regular oil changes are important. This is an easy job and should be done every 10 hrs."
  • Oil Capacity:– The oil capacity is 0.9 quarts (850cc). Slightly less than a full quart; do not overfill.
  • Check Oil Correctly:– When checking oil level, do not screw in the dipstick. Simply insert it, remove, and check the mark while the bike is level.
    Source:– "do not screw the dipstick in with checking the oil so I'm going to turn it one full turn backwards counterclockwise so that it seats nice and well against the engine case..."
  • Drain Plug Access:– The oil drain plug is very easy to access—located center-bottom, with a notch in the skid plate for clearance. Use a 17mm socket.
    Source:– "The drain on these is really easy to find, it's just center bottom; the skid plate already has a notch cut out so you can get to the drain plug."
  • Drain Plug Torque:– Tighten the drain plug to 18 ft-lbs (216 in-lbs).
    Source:– "With the bolt back in and the new Crush Washer I torqued it down it's 18 foot pounds which is 216 inch pounds."

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine:– Start your bike and let it idle for 3–5 minutes. Warm oil flows and drains more completely, carrying more contaminants with it. Shut off the engine and allow it to cool just enough for safe handling.
  2. Stabilize the Bike:– Place the bike on a stand or ensure it's upright and secure. This ensures you get an accurate amount of oil out and later, an accurate fill level.
  3. Locate and Remove the Drain Plug:– Underneath the engine, find the 17mm drain plug (center-bottom, accessible through a notch in the skid plate). Place your drain pan underneath, loosen with your 17mm socket and remove the plug. Allow oil to fully drain.
    Tip:– Replace the crush washer on the plug each time to ensure a leak-free seal.
  4. Replace the Drain Plug:– Once oil is fully drained, reinstall the drain plug with a new crush washer. Use a torque wrench to tighten to 18 ft-lbs (216 in-lbs).
    Do not overtighten to avoid damaging threads or the case.
  5. Add New Oil:– Remove the oil fill cap. Using a funnel, pour in 0.9 quarts (850cc) of fresh motorcycle oil. Go slowly to prevent spillage.
  6. Check Oil Level:– With the bike upright and level, insert the dipstick without screwing it in. Remove and check the oil level. The mark should be at (or just below) the full line. Add a very small amount if needed, but do not overfill.
    Important:– Always check while the dipstick is resting on the threads—not screwed in.
  7. Start and Re-check:– Replace the dipstick, start the engine, and let it run for 3–5 minutes. Shut off and let sit for 2–3 minutes. Check oil level once again (bike upright, dipstick not screwed in) and top off if necessary.
  8. Final Inspection:– Check under the bike for any leaks—especially around the drain plug. Clean any spilled oil from the engine and cases.
  9. Dispose of Old Oil Properly:– Take the used oil to a local recycling or auto parts center.

Pro Tips for 2022 Honda CRF125F Oil Changes

  • Always use motorcycle-specific oil (10W-30 or 10W-40) due to the wet clutch system. Automotive oils may disrupt clutch performance.
  • Since there's no oil filter, frequent oil changes are your engine's best defense against internal wear.
  • Replace the crush washer with every oil change to prevent leaks.
  • Do not overfill oil. Too much oil can cause excess crankcase pressure or leaks.
  • Be diligent to check oil level correctly (bike upright, dipstick resting–not threaded in).
  • Record your oil changes in a maintenance log for future reference and resale value.

Following this guide from MotoSport.com ensures your 2022 Honda CRF125F receives the care it needs to perform at its best on every ride—and helps guarantee fun, safe, and reliable adventures in the dirt.

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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.