How to Change the Oil in a 2021 Husqvarna FE350HQ

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If you ride a 2021 Husqvarna FE350HQ, changing the oil is crucial for keeping your engine running at peak performance. This guide, proprietary to MotoSport.com, will walk you through a robust, step-by-step oil change, highlight the tools required, and include all model-specific tips that every owner should know.

Tools & Supplies Needed

  • 13mm socket or wrench (for magnetic drain plug)
  • 8mm socket or T30 Torx bit (for skid plate bolts)
  • Oil filter (replace with every oil change)
  • New engine oil (per manufacturer specs)
  • Replacement copper washer for sump plug
  • Drain pan
  • Funnel
  • Brake cleaner or kerosene (to clean oil screen)
  • Toothbrush (to scrub oil screen)
  • Latex gloves (optional, for clean hands)
  • Shop towels
  • Torque wrench (preferred for precise reassembly)

Step-by-Step Oil Change Instructions

  • Preparation
    • Ensure the bike is cool and stable. Place the bike on a hoist, stand, or use the sidestand. Have someone hold the bike securely when loosening bolts to prevent accidents.
    • Remove the skidplate (or bashplate) using an 8mm socket or a T30 Torx bit. While some skidplates have cutouts for the drain plug, it's best to remove the plate entirely to avoid mess and give it a thorough clean.
  • Drain the Oil
    • Place a drain pan beneath the engine, aligned with the 13mm magnetic sump plug at the rear.
    • Carefully remove the drain plug using a 13mm socket or wrench. Allow the oil to fully drain into the pan.
    • Inspect the copper washer on the drain plug and replace it–it’s an inexpensive way to avoid leaks. Do not overtighten the sump plug when reinstalling.
  • Remove and Replace the Oil Filter
    • Locate the oil filter cover (typically on the side of the engine).
    • Remove the cover bolts and take out the oil filter. Make sure to note the orientation of the old filter.
    • Install a new oil filter, ensuring to slightly grease the O-rings before fitting–that helps maintain a proper seal and makes future removals easier.
    • Secure the filter cover back in place according to the manufacturer's torque specs.
  • Clean the Oil Screen
    • The 2021 FE350HQ is equipped with a magnetic sump plug and an oil screen as well as an oil filter—do not confuse the Allen-head plugs in the engine bottom for sump plugs; these should NOT be removed for an oil change.
    • Remove the oil screen (refer to your owner’s manual for location if unsure).
    • Clean the oil screen with brake cleaner or kerosene and a toothbrush. Let it dry before reinstalling.
  • Refill with Engine Oil
    • Fit the magnetic sump plug (with new copper washer) and torque it to the recommended specification.
    • Refit the cleaned oil screen.
    • Pour in the manufacturer-recommended engine oil using a funnel–check your manual for oil type and quantity.
    • Check oil level with the sight glass or dipstick.
  • Final Steps
    • Start the engine and let it idle for a few minutes. Check for leaks at the sump plug, oil filter, and oil screen covers.
    • Turn the engine off, allow to settle, and re-confirm the oil level. Top off as needed.
    • Reinstall the skidplate securely.
    • Dispose of the old oil and filter in accordance with local environmental regulations.

Model-Specific Tips for 2021 Husqvarna FE350HQ

  • The FE350 engine uses a magnetic sump plug and an oil screen, both of which must be serviced every oil change for optimal engine health. Only remove the 13mm hex head bolt at the rear of the engine–avoid tampering with other Allen-head bolts on the engine bottom, as these are not sump plugs and incorrect removal can cause damage or unnecessary work.
  • Always replace the copper washer when reinstalling the drain plug and avoid overtightening.
  • Grease the oil filter O-rings to maintain a good seal and ease later removal.
  • Use only oil that meets Husqvarna’s specifications for the FE350HQ for best performance and engine longevity.
  • NEVER reuse old engine oil or copper washers; they are designed for single use.

Common Mistakes to Avoid

  • Do not over-tighten the sump plug. A stripped thread can be costly to repair.
  • Never force any bolts or plugs–if it feels stuck, double-check you have the correct bolt.
  • Avoid removing the oil pump cover or non-drain Allen-head bolts at the engine bottom.
  • Don’t skip cleaning or replacing the oil screen–critical debris can bypass the filter.

Recap

  • Use the correct Hex and Torx tools.
  • Clean and replace all critical components with every oil change.
  • Be diligent about torque specs, washer replacement, and using the right oil type.
  • Dispose of oil responsibly.

For more tech tips, part numbers, or to order your oil change supplies, trust MotoSport.com to keep your FE350HQ running strong.

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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.