How to Change the Oil in a 2020 Husqvarna FS 450 — MotoSport.com Guide
Shop parts for a 2020 Husqvarna FS 450 Dirt Bike.
Changing the engine oil in your 2020 Husqvarna FS 450 is a critical maintenance task to ensure reliable performance and longevity. Whether you ride supermoto or on the track, routine oil changes maintain engine health, especially under the stresses this high-performance bike is designed for. Follow this detailed guide, proprietary to MotoSport.com, for a thorough oil change, including tools, tips, and FS 450 specifics.
Tools and Supplies Needed
- 8mm and 13mm sockets or wrenches
- Torque wrench
- Drain pan
- Clean rags
- Fresh engine oil (15W-50 fully synthetic recommended for racing)
- New oil filter
- Replacement crush washers for drain bolts
- Funnel
- Nitrile gloves (to keep hands clean and protect against hot oil)
- Parts cleaning brush (optional, for cleaning screens)
- Safety glasses
- Service stand (to keep the bike level and stable)
Preparation
- Start your FS 450 and let it idle for 3-5 minutes to warm the oil so it drains more thoroughly.
- Shut off the engine, place the bike upright on a level surface with a service stand, and ensure it is secure and won't tip over.
- Allow several minutes for the exhaust and engine components to cool slightly if excessively hot.
Step-by-Step Oil Change Instructions — 2020 Husqvarna FS 450
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Remove Skid Plate (if installed):
- Use your socket or wrench to remove mounting bolts.
- Set the skid plate aside.
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Drain the Oil:
- Place your oil drain pan beneath the engine.
- Find the oil drain plug on the bottom of the crankcase (13mm head, features a magnet and sealing washer).
- Remove the drain plug carefully and let oil completely drain into the pan.
- Inspect the magnetic tip for metal shavings (a small amount is normal in high-performance engines, but excessive accumulation may indicate engine wear).
- Remove and inspect the sealing washer. Replace it with a new one to prevent leaks.
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Remove and Clean Oil Screens:
- The FS 450 features two oil screens in addition to the filter. Locate and unscrew both — one near the front lower engine, the other on the side.
- Extract the screens with needle-nose pliers or your fingers.
- Thoroughly clean both screens with a parts cleaning brush and inspect for debris.
- Reinstall both oil screens carefully.
-
Replace the Oil Filter:
- Remove the oil filter cover bolts and the cover itself with an 8mm socket.
- Remove the old oil filter, noting its orientation.
- Tip: Prime the new filter by dipping it in fresh oil before installation to aid immediate oil flow.
- Install the new filter in the correct orientation and reinstall the cover, tightening bolts to manufacturer torque specs.
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Reinstall Oil Drain Plug:
- Install the drain plug (with new crush washer) and tighten to the manufacturer’s torque setting.
- Wipe away any spilled oil or dirt around the plug area.
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Refill with Fresh Oil:
- Using a funnel, pour in 1.2 liters (1200 milliliters) of high-quality oil, meeting Husqvarna’s specifications for performance bikes (15W-50 is recommended, especially for racing and high-load use).
- Always confirm your owner's manual for the exact oil volume as some variations exist between models and regions .
- Replace and tighten the oil fill cap.
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Check Oil Level:
- Start the engine and run it for 2-3 minutes.
- Shut off engine and allow oil to settle for a couple minutes.
- Check the oil sight glass located on the engine’s side. Proper level is halfway up to three-quarters full in the window. Add oil if needed.
- Repeat process if necessary to ensure correct oil level.
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Check for Leaks:
- Inspect around the oil filter cover, drain plug, and screens for any signs of leaks. Tighten components if needed.
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Reinstall Skid Plate:
- Reattach if removed, ensuring all fasteners are secure.
FS 450 Model-Specific Call-Outs
- The 2020 FS 450 has a magnetic drain plug — always inspect this for evidence of unusual metal particle accumulation, especially if ridden hard or raced regularly.
- Oil capacity is 1.2L for the 2020 model, but always confirm with your owner’s manual or service sticker.
- Ensure the oil filter orientation matches the original—incorrect installation can restrict oil flow.
- This bike’s high-performance engine recommends synthetic, 15W-50 motorcycle-specific oil with a strong resistance to sheer and high temperatures .
- The FS 450’s two oil screens are easily contaminated if service intervals are skipped, so always clean during every oil change, not just the filter.
- After an oil change, monitor for any leaks around the plug and filter—track vibration can loosen fasteners over time.
Disposal
- Recycle your used oil and filter at an appropriate recycling facility—never dump oil outdoors or into household trash.
Final Notes
- Change your FS 450 oil every 5-10 hours of use, or more frequently if racing, per Husqvarna’s recommendations.
- Document your oil change and next scheduled maintenance for the best engine care.
- If you need an oil change kit or OEM Husqvarna parts, MotoSport.com stocks the necessary components for the 2020 FS 450.
Related Shopping Categories
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Shop Tools for a 2020 Husqvarna FS 450 Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2020 Husqvarna FS 450 Dirt Bike.
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.