How to Change the Oil in a 2021 Sherco 500 SEF‑R — MotoSport.com Guide
Shop parts for a 2021 Sherco 500 SEF-R Dirt Bike.
Regular oil changes are essential for the long-term durability and optimal performance of your 2021 Sherco 500 SEF‑R. This how-to guide provides proprietary step-by-step instructions, covers all tools and materials you’ll need, and details specific model-year call-outs every owner should know.
Tools and Materials Needed
- Socket wrench set (includes: 8mm and 17mm sockets, 4mm Allen key)
- Oil drain pan
- New engine oil — Recommended: Motul 7100 10W60
- New oil filter — HIFLO FILTRO HF611 (or OEM equivalent)
- Replacement crush washers (for drain and filter bolts)
- Rags or shop towels
- Parts cleaner/degreaser (optional, for stubborn grime)
- Funnel
- Torque wrench (for accurate reassembly)
- Gloves (recommended for cleanliness and safety)
Preparation Steps
- Warm up your engine for a few minutes to help the oil flow out more easily.
- Turn off the engine, place the motorcycle on a flat, stable stand, and ensure it’s upright and secure.
- Clean the area around the drain plug, filter housing, and clutch cover to help prevent contamination.
Step-By-Step Oil Change Process
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Remove the Skid Plate (if equipped):
- Unbolt or unclip the skid plate for easier access to the drain bolts and oil filter cover.
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Drain the Engine Oil:
- Place your oil drain pan beneath the engine.
- Use a 17mm socket to remove the primary drain bolt (magnetic bolt) located on the underside of the engine.
- Allow oil to drain completely—this can take several minutes. Be patient and let gravity do the work.
- Inspect the magnetic drain bolt for any metallic debris. Clean it thoroughly before reinstallation.
- Remove the other two secondary drain (or inspection) bolts using the 8mm socket and/or Allen key—these may house small mesh filters; remove and clean these as well.
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Remove and Replace the Oil Filter:
- Locate the oil filter cover (typically on the right side; confirm against your model as some variance may exist).
- Use an appropriate size socket or Allen key (often 8mm or 4mm) to remove the oil filter cap.
- Extract the old oil filter. Take note of its orientation and check for any abnormal debris.
- Pre-lubricate the new oil filter with fresh engine oil—especially the O-rings and gasket surfaces. Pour a small amount of oil inside the new filter to speed up oil circulation on first engine start.
- Install the new filter in the correct orientation, taking care not to pinch or damage O-rings/gaskets.
- Reinstall the oil filter cap and tighten to manufacturer’s specified torque (refer to Sherco’s manual, generally between 8–10 Nm).
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Reinstall All Removed Bolts:
- Install new crush washers on all drain bolts.
- Tighten each bolt to the recommended torque (check your manual, typically 10 Nm for drain and inspection bolts).
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Add New Engine Oil:
- Remove the oil fill cap on the clutch cover (right side of engine).
- Using a funnel, pour in approximately 1.2 to 1.3 liters of Motul 7100 10W60 oil. Always check the user manual for exact capacity and current fill level guidelines.
- With the bike upright, check the oil sight glass (window located on the clutch cover). Oil should be visible up to 2/3 of the window—do not overfill.
- Reinstall and tighten the oil fill cap.
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Start the Engine and Circulate Oil:
- Start the engine and let it idle for 2–3 minutes. Check visually for any leaks around drain bolts and the oil filter cover.
- Shut off the motor and let it cool for several minutes. Re-check the oil level, as it may drop after oil circulates and fills the filter. Top up as needed, but do not overfill.
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Dispose of Old Oil Responsibly:
- Transfer the used oil and old filter to an approved recycling center or hazardous waste facility.
2021 Sherco 500 SEF‑R Specific Tips & Call-Outs
- Multiple Drain Bolts: Unlike some brands, the Sherco 500 SEF‑R uses more than one drain bolt and includes two filter screens in addition to the main filter—both must be cleaned thoroughly each oil change.
- Oil Filter Orientation: Pay close attention to how the original filter is installed, as incorrect installation can cause oil starvation and internal damage.
- Torque Settings: Sherco specifies a torque of 10 Nm for most engine drain, inspection, and filter bolts; always confirm using your workshop manual.
- Oil Level Check: Always verify oil level through the sight glass with the bike vertical. Running the engine before a final check helps ensure accurate measurement.
- Oil Type: Sherco recommends Motul 7100 10W60 for best results.
- Interval: Change the oil more frequently if you race or ride hard—while manuals may state 100-hour intervals, 20–30 hours for aggressive riding is safer and proven in the field.
Final Safety and Maintenance Reminders
- Always double-check for oil leaks after your first post-service ride.
- Keep a log of oil changes (date, hours, oil and filter used) for better maintenance tracking and resale value.
- Never use an impact driver or overtighten engine bolts—they are low-torque and easy to strip.
- Consult your Sherco manual for any updates or year-specific details.
All rights reserved © MotoSport.com. This guide is proprietary and dedicated to helping Sherco riders perform the best possible maintenance on their machines.
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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.