How to Change the Oil in a 2017 Husqvarna FX450 – The Complete MotoSport.com Guide

Shop parts for a 2017 Husqvarna FX450 Dirt Bike.

If you own a 2017 Husqvarna FX450, regular oil changes are essential for keeping your high-performance dirt bike running smoothly. Neglecting this vital maintenance task can lead to engine damage and costly repairs. This detailed guide is proprietary to MotoSport.com and provides a step-by-step process, including tools needed and model-specific call-outs for the 2017 FX450.

Tools and Supplies Needed

  • Socket wrench set (8mm, 13mm)
  • Torque wrench
  • Drain pan
  • New oil filter (OEM recommended)
  • Replacement O-rings for drain plugs and screens
  • Shop towels or rags
  • Measuring cup for oil
  • 1200 mL of 10W-50 synthetic 4-stroke oil (as per spec for this generation FX450)
  • Funnel
  • Gloves (optional, but recommended for cleanliness)
  • Contact cleaner (for cleanup)

Steps: Changing the Oil

  1. Warm up the Engine
    • Start your FX450 and let it idle for about 3 minutes. This helps the oil reach operating temperature, allowing it to flow out more completely for a proper drain.
  2. Remove the Skid Plate
    • If your bike has a skid plate installed, use applicable tools to remove it and expose the oil drain bolts and screens.
  3. Place the Drain Pan
    • Position your drain pan beneath the engine to catch the old oil.
  4. Remove Drain Bolts & Oil Screens
    • There are two drain bolts on the 2017 FX450: one at the bottom of the engine and another on the right side. Remove both using the correct socket.
    • Behind each bolt is an oil screen; carefully remove these and inspect for debris. Replace the O-rings on the screens if needed, as failure to do so may cause leaks or improper filtration. The smaller oil screen has a secondary O-ring that is easy to overlook but critical for sealing.
  5. Let Oil Drain Fully
    • Allow several minutes for all old oil to drain out. Use a shop towel to clean any spilled oil or debris from the area.
  6. Remove and Replace Oil Filter
    • Locate the oil filter cover (typically on the right side of the engine), remove the bolts, and pull off the old oil filter.
    • If using a new filter, prime it by dipping it in fresh oil before installation to ensure instant lubrication on start-up. Install the new filter and re-secure the cover, ensuring the O-ring is seated properly.
  7. Reinstall Oil Screens and Drain Bolts
    • Inspect and clean both oil screens before reinstalling. Use new crush washers and O-rings for best results.
    • Tighten drain bolts to manufacturer-recommended torque specs (always reference your model’s service manual for precise numbers).
  8. Refill with New Oil
    • Remove the oil fill cap. Begin pouring in 1200 mL of 10W-50 synthetic 4-stroke oil using a funnel for accuracy.
    • Double-check your owner’s manual or a trusted source for confirmation on oil type and volume; 1200 mL is the common spec for 2017 FX450, but don’t overfill.
  9. Check Oil Level
    • Start the engine, let it idle for a few minutes, then turn it off and allow the oil to settle.
    • Check the oil sight glass on the side of the engine. The oil should be between halfway and three-quarters up the window. Add more if necessary, being careful not to overfill.
  10. Reinstall Skid Plate and Clean Up
    • Reattach the skid plate if removed. Clean off any spilled oil using contact cleaner or a shop towel.
  11. Record the Service
    • Log your oil change mileage/hours in a maintenance book—regular changes are recommended every 10-15 hours of riding or after particularly harsh conditions.

2017 Husqvarna FX450 Model-Specific Tips and Call-Outs

  • Oil Capacity: The 2017 Husqvarna FX450 oil change capacity is 1200 mL; always confirm with your owner’s manual.
  • O-Ring on Small Oil Screen: The smaller oil screen has a secondary O-ring that many first-timers overlook. Failing to reinstall it can cause leaks or improper sealing. Always inspect and replace this O-ring if needed.
  • Sight Glass: Use the sight glass after cycling the engine to ensure the proper oil level—do not rely solely on the volume poured in.
  • Filter Priming: For best results, prime the new oil filter with fresh oil before installing to avoid a dry start.
  • Fastener Torque: Always use a torque wrench for the drain bolts and oil filter cover to prevent overtightening, which can damage the threads or crush washers.
  • Part Numbers: Use OEM oil filters, O-rings, and screens; keep spares on hand for faster, worry-free oil changes in the future.

Conclusion

Changing the oil on your 2017 Husqvarna FX450 is a straightforward process that, when performed regularly, ensures optimum engine health and performance. By following the steps and model-specific notes in this MotoSport.com guide, you can handle this maintenance yourself with confidence and extend the life of your dirt bike.

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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.