How to Change the Oil in a 2020 Sherco 250 SE-R

Shop parts for a 2020 Sherco 250 SE-R Dirt Bike.

Own a 2020 Sherco 250 SE-R and want to tackle your own oil change? Here’s your comprehensive MotoSport.com guide to keeping your two-stroke enduro in peak running condition. Proper oil maintenance is key for engine longevity and top-tier performance. Let’s break down everything you need to know, including unique notes specific to this bike.

Tools & Supplies Needed

  • 8mm Allen wrench (for drain plug removal)
  • Oil catch pan/container
  • Clean rags
  • New transmission oil: Consult your manual for type/amount; typical two-stroke gear oils recommended by Sherco or high quality synthetic 10W40–10W50 transmission oil
  • Measuring cup (for accurate refill)
  • Socket wrench set (for additional access, if needed)
  • Gloves (optional but recommended)

Steps to Change the Oil

  • Warm Up the Engine: Let the bike idle for a few minutes to thin the oil, enabling a more complete drain. Afterward, shut off the engine and let it cool just enough to safely handle components.
  • Stabilize and Prep: Place the bike upright using a stand. Position your oil catch pan directly beneath the drain plug, which you’ll find at the very bottom of the engine, near the gear shifter.
  • Remove the Drain Plug: Use your 8mm Allen wrench to carefully remove the drain plug. (Tip: You may need to gently move the shifter up to gain easier access and better leverage.) Allow all the old oil to drain out completely.
  • Inspect and Clean: Inspect the drain plug for debris or metal shavings, indicating possible internal wear. Wipe it clean and check the sealing washer for damage, replacing it if needed.
  • Reinstall the Drain Plug: Hand-tighten the plug first, then tighten with your wrench—do not overtighten to avoid stripping. Sherco specifies a torque value when available; best practice is firm but not forced.
  • Refill with Oil: Remove the oil fill plug (sometimes located on the right or left engine case depending on specific SE-R sub-model). Use your measuring cup for precise quantity—for Sherco 250 SE-R, typically 700-800ml, but always verify in your owner’s manual or observation window.
  • Check Oil Level: Use the sight glass or dipstick (again, check manual for exact method), to ensure you’re within the recommended range. Adjust as needed, adding oil in small amounts until correct.
  • Double-check Everything: Secure the fill plug. Start the engine and let it idle for a minute, then shut it down and verify for leaks at the drain plug area and the correct level once any oil has settled.
  • Dispose of Old Oil Responsibly: Take your used oil to a certified collection center—never dump it in the environment.

Special Notes for 2020 Sherco 250 SE-R Owners

  • Drain Plug Location: The plug is tucked around the shifter, requiring that you may need to lightly adjust the shifter for clear access.
  • Draining May Take a While: Allow sufficient time for the oil to fully drain—some residual oil may linger; patience ensures the best results.
  • Fill Quantity: Always double check the manual, but for most 250 SE-R’s, the transmission oil capacity is approx. 700-800 ml.
  • No separate oil filter to replace: On these two-stroke models, you’re only changing transmission oil, not engine oil as with four-strokes, and there’s no spin-on or cartridge filter.
  • Pre-mix Oil: Remember—this task covers transmission oil only. For the actual engine, you must also maintain correct pre-mix ratios in your fuel (2% or as specified).
  • Gaskets & Washers: Sherco recommends replacing the drain plug sealing washer if any wear is found to ensure a tight seal.

Final Tips

  • Keep a Maintenance Log: Note date, hours, and oil type/quantity; helps maintain resale value and engine health.
  • Consistent Maintenance: Frequent oil changes (every 10–15 hours of riding or per your manual) protect your clutch and transmission gears.
  • Use OEM-Recommended Oil: Stick to quality oils for best protection and clutch feel. Avoid automotive oils not intended for wet clutch motorcycles.

With regular oil changes, your 2020 Sherco 250 SE-R will stay in peak condition for every ride. Ride safe and keep your MotoSport.com garage well-stocked for the next round.

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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.