How to Change the Oil in a 2023 Husqvarna FC350: Step-by-Step Guide

Shop parts for a 2023 Husqvarna FC350 Dirt Bike.

If you ride a 2023 Husqvarna FC350, performing regular oil changes is key to keeping your dirt bike in peak condition. Below, you’ll find a comprehensive MotoSport.com guide tailored to the FC350 platform—covering every tool you need, the exact steps, and crucial model-specific details that keep your engine running strong.

Tools and Materials Needed

  • 13mm wrench (combination wrench or deep socket)
  • 8mm socket or T30 Torx bit (for some cover bolts)
  • Oil catch pan
  • Needle nose pliers (for removing oil screen)
  • Torque wrench (optional but recommended)
  • Clean rags or paper towels
  • New oil filter (specific to FC350)
  • High-quality 4-stroke motorcycle oil (API SJ+ – JASO MA, 15W/50 or as per manual)
  • Crush washer (recommended to change each oil service)
  • Funnel (for cleaner pouring)

Step-by-Step Oil Change Instructions

  • Warm Up the Engine
    Start your bike and let it idle for 2-3 minutes. This warms the oil, allowing it to drain more completely and carry away grime.
  • Stabilize the Bike
    Place your FC350 on a stand to keep it upright and stable throughout the process.
  • Remove Skid Plate (if equipped)
    Use an 8mm socket or T30 Torx bit to unscrew the skid plate bolts. Slide or tilt the skid plate out of the way for access to the drain plug and filter.
  • Open the Oil Fill Cap
    Unscrew the oil fill cap on the top of the engine. This allows air in and helps the oil drain more freely.
  • Drain the Old Oil
    Locate the 13mm drain bolt at the bottom left of the engine. Place your drain pan underneath, then use your 13mm wrench to remove the plug and let the oil drain completely.
  • Remove and Clean the Oil Screen
    Next to the drain bolt is the oil screen. Use needle nose pliers to gently pull it out. Inspect for debris or metal shavings (a small amount is normal). Clean the screen thoroughly before reinstalling.
  • Replace the Oil Filter
    Identify the oil filter cover (usually held by two 8mm bolts on the right side). Remove these bolts to access the filter. Pull out the used oil filter, lubricate the new filter with a bit of fresh oil, then slide it into place making sure it seats correctly. Reinstall the filter cover and tighten the bolts evenly.
  • Inspect and Replace O-Rings – Crush Washer
    Check O-rings on the oil screen and filter caps for damage. Replace if flattened or worn. Always install a new crush washer on the drain bolt to prevent leaks.
  • Reinstall Drain Plug and Oil Screen
    Screw in the drain bolt by hand, then torque it to 14.8 ft-lbs if a torque wrench is available. Reinstall the cleaned oil screen, ensuring the O-rings are lubricated and seated properly.
  • Fill with New Oil
    Using a funnel, pour fresh oil into the fill port. The 2023 FC350 requires around 1.1 quarts (1.04 liters), but always check your manual and inspect the sight glass or dipstick to avoid overfilling.
  • Check Oil Level and Run Engine
    With the bike upright and level, check the oil level. Start the engine and let it idle for 30 seconds. Shut it off, wait a minute, then check the oil again and top off if needed.
  • Final Checks and Cleanup
    Inspect all fastenings for leaks. Reattach the skid plate, dispose of waste oil properly, and wipe up any oil spills or drips.

Special Model-Specific Tips for the 2023 Husqvarna FC350

  • Skid Plate Variation: Some FC350 models may have an aftermarket or stock skid plate that is easy to pivot or fully remove—this makes accessing the oil drain and filter easier.
  • Drain Plug Location: The 13mm drain bolt is at the bottom left of the engine. Some models may require a box wrench rather than a socket due to tight clearance.
  • Oil Recommendation: For the best clutch and gear performance, stick with high-quality, manufacturer-recommended oil. The 2023 FC350 is designed for 15W/50 synthetic 4-stroke oil for most climates (always verify with your manual).
  • Oil Capacity: Models from 2016 onward–including the 2023–typically require 1.1 quarts, but always verify via the oil level window with the bike upright.
  • Torque Settings: The drain bolt torque spec is 14.8 ft-lbs; overtightening can strip the case.
  • Filter Orientation: Make sure the new filter clicks fully into place, otherwise you risk unfiltered oil circulation.

Conclusion

With the right tools and attention to detail, changing the oil on your 2023 Husqvarna FC350 is a straightforward DIY job. Stick to the intervals listed in your owner’s manual, never reuse old filters or crush washers, and if you notice excessive metal flakes in the oil screen, consult a dealer for further inspection. For OEM filters, crush washers, and premium lubricants, trust MotoSport.com to keep your Husqvarna running at its best.

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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.