How to Change the Oil in a 2013 Honda CRF250X – The Complete Guide

Shop parts for a 2013 Honda CRF250X Dirt Bike.

Changing the engine and transmission oil on your 2013 Honda CRF250X is a crucial maintenance task for performance, reliability, and engine longevity. If you've never done this before—or even if you have—this guide walks you through the steps, lists the tools, and highlights specific details you need to know about your CRF250X.

Tools and Supplies Needed

  • 10mm and 12mm sockets (or wrenches)
  • Torque wrench
  • Oil drain pan
  • Funnel
  • Fresh engine oil (Consult the owner’s manual for type and capacity)
  • Fresh transmission oil (same as above – note this bike uses separate oils for the engine and transmission)
  • Replacement oil filter
  • Oil filter cover gasket (optional, but recommended if old one is worn)
  • Shop rags
  • Skid plate removal tool (if equipped – usually a 10mm wrench or socket)

Prepping Your CRF250X

  • Warm up the engine for a few minutes. Warm oil drains faster and more thoroughly.
  • Remove the skid plate by taking out the 10mm bolts. This provides access to the drain plugs and keeps things clean.
    If you still have OEM guards, remove the bolts on each side as well.

Step-by-Step Engine Oil Change

  • Locate the engine oil drain bolt.
    The drain bolt sits underneath the engine. Place your oil pan under it.
  • Remove the drain bolt.
    Use your 12mm socket. Allow the oil to drain completely. You may gently rock the bike side to side for a thorough drain.
    To completely empty the system, operate the kickstarter pedal 5 times or more while holding the engine stop switch. This circulates any remaining oil out of the engine.
  • Check the crush washer.
    Inspect the washer; reuse only if in good condition. Replace if damaged or missing.
  • Reinstall and torque the drain bolt.
    Set your torque wrench to the manufacturer’s recommended spec (typically 18 ft-lbs, but check your manual) and tighten the drain bolt.
  • Remove the oil filter cover.
    Use an 8mm socket to take off the bolts, then remove the old filter. Watch for the spring—make sure it isn't lost or out of place.
  • Install the new oil filter.
    Lightly oil the filter’s rubber seal, check the spring is in place, and fit the new filter.
  • Reinstall the oil filter cover & tighten bolts to the recommended torque.
  • Fill with fresh engine oil.
    Remove the oil filler cap and use a funnel. Pour in the proper amount of new oil (see manual). For the 2013 CRF250X, it’s typically around 700cc (0.74 US qt) with a filter change.
  • Replace the filler cap and clean up any spilled oil.
  • Start the engine & check levels.
    Idle the bike for a minute, shut it off, and check oil level on flat ground. Add oil if necessary.

Step-by-Step Transmission Oil Change

  • Locate the transmission drain bolt.
    It’s on the left side, around 50mm in front of the shift lever, at engine case level.
  • Remove the drain bolt, drain the oil, and check the washer.
  • Reinstall and torque the drain bolt (use the same torque spec as the engine drain bolt, typically 18 ft-lbs, but consult your manual).
  • Fill with the correct amount of fresh transmission oil.
    The fill port is on the right-hand side. Remove the fill bolt, and pour in the oil until it comes out the overfill/check bolt located just above/behind the fill port.
    CRF250X transmission capacity is about 750cc (0.8 US qt), but use the check bolt for accuracy. Add oil on flat ground until it slightly spills from the check port.
  • Replace the fill and check bolts.

2013 CRF250X Model-Specific Callouts

  • Separate oil systems. The CRF250X uses different oils for the engine and transmission. Never use the same oil for both.
  • Be precise with oil capacity. Overfilling the transmission can lead to pressure issues; always use the check/fill method.
  • Skid plate design. The stock skid plate must be removed to access the drain bolts. Aftermarket plates may have holes for easier access; if not, remove them before draining.
  • Drain bolt washers can be reused a few times, but replace if they show signs of wear, flattening, or damage.
  • Level surface matters. Always check fluid levels with the bike straight up, not on the kickstand.
  • After refilling, always double-check for leaks and proper levels after the first ride or startup.

Maintenance Tips for the CRF250X

  • Change your oil and filter after every 10-15 hours of riding or following manufacturer schedule—whichever comes first.
  • Inspect both the magnetic drain bolt (if equipped) and the old oil for metal debris. Excess metal could signal internal wear.
  • Clean up with a degreaser and ensure no spilled fluids are left under the engine, as this collects dust and grime quickly off-road.
  • Keep a maintenance log with hours and mileage for your dirt bike’s records.

Wrapping Up

Changing the oil on your 2013 Honda CRF250X is straightforward with the right tools, genuine parts, and careful attention to detail. Regular oil changes keep your engine and gearbox running smooth, helping you get the most fun and life from every ride.

All guidance and specifications are based on standard procedures for this model dirt bike and general best practices. For safe, optimal results, always consult your owner’s manual and use genuine or high-quality replacement parts.

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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.