How to Change the Oil in a 2025 Sherco 250 SEF FACTORY

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Maintaining your 2025 Sherco 250 SEF FACTORY with regular oil changes is crucial for engine longevity and top performance. This step-by-step guide by MotoSport.com walks you through the process, including all necessary tools, safety tips, and important model-specific notes.

Tools and Supplies Needed

  • 8mm socket
  • 17mm socket
  • 4mm Allen key
  • Oil drain pan
  • New Sherco-specified oil filter
  • Pre-filter (optional if replacement is needed)
  • New gaskets/O-rings (for drain and filter plugs)
  • SAE 10W60 four-stroke engine oil (approx. 0.9 liters)
  • Paper towels/rags
  • Torque wrench
  • Crush washers (aluminum preferred) for drain bolts
  • Gloves & eye protection

Step-by-Step Oil Change Procedure

  1. Warm Up the Engine
    • Start the bike and let it idle for 3–5 minutes. This warms up the oil and helps it drain completely.
  2. Secure the Bike
    • Place the Sherco 250 SEF Factory on a stable stand for easy access. Engage the neutral gear and turn off the ignition.
  3. Remove the Skid Plate (if equipped)
    • If your bike has a skid plate, remove it using the appropriate tool to access the drain plugs.
  4. Drain the Old Oil
    • Place the oil drain pan beneath the engine.
    • Locate and remove the M19 drain plug (22Nm torque) and M12 magnetic drain plug (15Nm torque). Each has a different torque spec; note their location for reassembly.
    • Allow all the oil to drain completely. Carefully remove the pre-filter if your bike is equipped and set it aside for cleaning or replacement.
    • Be aware that both plugs have aluminum crush washers – inspect and replace if needed for a proper seal and to prevent leaks.
  5. Clean Components
    • Clean any metal debris from the magnetic drain plug and the pre-filter. If the pre-filter appears damaged or excessively dirty, replace it.
  6. Replace the Oil Filter
    • Remove the oil filter cap (M45, 15Nm torque), noting the orientation and O-ring. Replace the old oil filter with a new one, installing it in the correct direction as illustrated in your owner’s manual.
    • Fit a new O-ring onto the oil filter cap and reinstall it. Using a torque wrench, tighten to manufacturer specification.
    • Install the pre-filter (cleaned or new) and drain plugs using new gaskets/o-rings as needed, again torquing to spec. Improper torque can damage threads or cause leaks.
  7. Refill with New Engine Oil
    • Remove the engine oil filler cap. Slowly pour in 0.9 liters of SAE 10W60 four-stroke engine oil.
    • Reinstall the filler cap and check the oil level using the sight gauge on the engine (consult your manual for exact location and oil level method). Add oil if necessary.
  8. Start and Inspect
    • Start the engine and let it idle for thirty seconds. Check for leaks at the drain plugs, oil filter cap, and around the filter cover.
    • Turn the bike off, let it sit for a minute, then inspect the oil level again and top off if needed. Reinstall the skid plate if removed.

2025 Sherco 250 SEF FACTORY Model-Specific Call-Outs

  • This model uses two separate oil drain plugs (M19 and M12 magnetic), both of which have different torque specs.
  • Always torque drain plugs and the filter cap to the values in your manual (15Nm or 22Nm as specified).
  • Use only SAE 10W60 four-stroke engine oil and the specified quantity (0.9L) for optimal clutch and engine protection.
  • Replace all crush washers on drain bolts during reassembly to help avoid leaks.
  • The oil filter must be replaced with every oil change, and the pre-filter cleaned or swapped as necessary.
  • Dispose of all old oil and filters at a recycling center; do not pour oil down the drain or onto the ground for environmental protection.

Extra Maintenance Tips

  • Sherco recommends changing the engine oil every 6,000 km or as required under heavy use. Racing or dusty conditions may require more frequent changes.
  • Check and replace the spark plug as needed (every 50 hours is typical for competition use).
  • If you notice metal debris on the magnetic plug, monitor engine wear closely and consult a technician if excessive.
  • The oil fill port is located in a tight area; a long-neck funnel is recommended to avoid spills.

Conclusion

Keeping your 2025 Sherco 250 SEF FACTORY’s engine oil fresh is among the most important maintenance tasks for dependable performance. Use only recommended oil and filter products, follow the torque specifications, and practice responsible disposal of waste materials. For all genuine OEM parts and expert guides, trust MotoSport.com for your dirt bike needs.

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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.