How to Change the Oil in a 2021 Husqvarna FC250

Shop parts for a 2021 Husqvarna FC250 Dirt Bike.

Regular oil changes are vital for the longevity and performance of your 2021 Husqvarna FC250. This how-to guide, proprietary for MotoSport.com, covers everything you need to know: the specific tools required, step-by-step instructions, and model-specific tips you can't miss.

Tools & Supplies Needed

  • 8mm and 13mm socket or wrench (for drain plug and oil filter cover)
  • Pin wrench (for oil screen, highly recommended but not always required)
  • Oil catch pan
  • Clean rags or shop towels
  • Parts cleaner or brake cleaner
  • New crush washer for drain plug
  • OEM oil filter (recommended)
  • Fresh engine oil (check the owner’s manual for exact capacity and spec; Bel-Ray and Motorex are popular choices)
  • Torque wrench
  • Needle nose pliers (for oil screen removal)
  • O-rings for oil screen and drain plug (inspect and replace if damaged)
  • Nitrile gloves (optional, keeps your hands clean)

Step-By-Step Instructions

  1. Warm Up the Engine
    Run the bike for a few minutes to bring the oil to operating temperature. This helps the oil drain completely and removes more impurities.
    • Warning: Engine oil gets very hot. Proceed with caution.
  2. Secure the Bike
    Place your Husqvarna FC250 on a level surface using a sturdy stand for stability.
  3. Remove the Oil Drain Plug
    Position the catch pan under the engine. Use a 13mm wrench to loosen the main oil drain plug; allow oil to drain completely.
    • Model-specific tip: There are two plugs on the bottom of the engine. Only remove the specified drain plug–not the smaller Allen plug, which is NOT for oil changes and should remain installed to avoid internal issues.
    • Replace or inspect the crush washer on the drain plug for wear.
  4. Remove and Clean the Oil Filter
    Locate and remove the oil filter cover using an 8mm or 13mm socket (varies by year). Slide out the old filter. Inspect the cover O-ring, and clean or replace if worn.
  5. Remove and Clean the Oil Screen
    Husqvarna FC250 uses an oil screen in addition to the filter. Remove the screen by unscrewing the screen plug (typically with an 8mm or pin wrench).
    • Inspect the screen for debris and metal shavings. Clean with parts cleaner and a rag.
    • Pro tip: Lubricate the screen’s O-rings lightly with fresh oil before reinstalling.
  6. Inspect & Clean Components
    Use a shop towel and parts cleaner to clean the drain plug, filter cover, and seal surfaces.
    • Ensure O-rings and gaskets are free of damage or flattening; replace them as needed.
  7. Reinstall Drain Plug, Oil Screen, and Filter
    • Install the drain plug with a new crush washer. Torque to 14.8 foot-pounds (20 Nm).
    • Insert the clean oil screen carefully, ensuring it seats fully in its groove.
    • Install the new oil filter (OEM recommended) and replace the oil filter cover, tightening bolts gradually and evenly.
  8. Add Fresh Engine Oil
    Remove the oil fill cap. Pour in the recommended oil type and volume (usually around 1.0 liter / 1.06 quarts but verify in owner’s manual for your model and conditions).
    • Add oil in small increments, checking the level after a minute with the dipstick or sight glass if equipped.
  9. Check for Leaks and Finalize
    Start the engine and let it idle for 1–2 minutes. Shut it off, check for leaks around the drain plug, oil filter, and screen. Re-check oil level and top off if needed.
  10. Recycle Used Oil
    Pour used oil into a sealed container and deliver it to your local recycling center.

2021 Husqvarna FC250 Oil Change Call-Outs

  • Do not remove the secondary plug/Allen plug on the case bottom—it isn’t for routine oil changes.
  • Check both O-rings on the oil screen—failure to seat them properly may allow debris into oil pump gears.
  • Always torque the main drain plug to spec (14.8 ft-lbs).
  • If filter cover or drain plug O-rings appear at all flattened or damaged, replace immediately for proper sealing.
  • Using an OEM Husqvarna oil change kit (including crush washers, filter, and recommended oil) can save time and prevent fitment issues.

Changing your 2021 Husqvarna FC250’s oil is essential for engine health. When in doubt, consult your official owner’s manual or MotoSport.com for genuine OEM parts and maintenance kits. Enjoy peak performance and many safe rides.

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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.