How to change the oil in a 2011 Husaberg FX450 Dirt Bike

How to Change the Oil in a 2011 Husaberg FX450

Shop parts for a 2011 Husaberg FX450 Dirt Bike.

Regular oil changes are critical for keeping your 2011 Husaberg FX450 performing at its best. Clean oil ensures optimum engine lubrication and longevity, especially on high-performance dirt bikes like the FX450. This tutorial by MotoSport.com will guide you through every step of the process, including model-specific tips you won't find anywhere else.

Tools and Materials Needed

Socket set (Metric – to remove drain and filter cover bolts)
Oil filter (new)
Replacement engine oil (use oil grade and amount recommended in the owner’s manual, typically about 1.2L)
Drain pan
Funnel
Shop towels or rags
Torque wrench
Gloves (recommended)
M6 bolt (for removing the oil filter cover, if required)
New crush washers (recommended for the drain plug and screen caps)
Parts cleaner or contact cleaner (optional, for cleaning parts and residual oil)

Preparation Steps

Start the engine and let it idle for a few minutes to bring the oil up to operating temperature. This helps suspend dirt in the oil and improves drainage efficiency. WARNING: Hot oil can cause burns, so wear gloves and be careful when draining.
Place the bike on a stable stand.
Ensure you have all needed tools and new oil/filter on hand before starting the job.

Step-by-Step Oil Change Procedure

Remove the Skid Plate (if fitted):
Loosen and remove the skid plate below the engine, if your FX450 is equipped with one. This provides clear access to the oil drain bolts and filters.
Drain the Oil:
- Position a drain pan beneath the engine oil drain bolt.
- Using the correct socket, loosen and remove the drain bolt. Allow the oil to fully drain.
- There may be a second drain bolt or an oil screen cap on this model—consult your manual and remove it to flush out any remaining oil. Clean the oil screens if present before reinstallation. The 2011 FX450 uses screens and a drain bolt; both must be serviced for a complete oil change.
- Inspect the crush washer on each bolt or cap; replace if necessary to prevent leaks.
Remove and Replace the Oil Filter:
- Locate the oil filter cover (check the left or right side of the engine).
- Remove the two bolts securing the cover. Use an M6 bolt threaded into the cover’s center hole if it sticks.
- Gently remove the cover and old oil filter.
- Coat the new filter with a bit of fresh oil before installation—this helps prime lubrication on startup. Priming is a best practice for all KTM/Husqvarna/Husaberg models of this era.
- Reinstall the oil filter and cover, tightening bolts snugly but not excessively (consult your service manual for the correct torque spec).
Reinstall Drain Bolts and Screens:
- Make sure all oil has drained, then reinstall the drain bolts, oil screen caps, and any washers or screens you removed. Tighten to spec.
- Clean off any spilt oil from the underside of the bike.
Add Fresh Engine Oil:
- Using a funnel, pour in the specified amount of new oil through the oil filler cap. The 2011 FX450 takes approximately 1.2L (1200mL), but always confirm with your service manual or the sight glass.
- Replace the filler cap.
Check the Oil Level:
- Start the engine and run it for 2–3 minutes. Shut off, wait 1–2 minutes for the oil to settle, then check the level in the oil sight glass. It should sit at least midway up the glass, but not overfilled.
Inspect for Leaks:
- Visually inspect the drain bolts, screen caps, and filter cover for any fresh oil leaks with the bike idling. Tighten as needed.
Reinstall the Skid Plate:
- If removed, install the skid plate and ensure all fastening hardware is secure.
Dispose of Used Oil Responsibly:
- Take the used oil and filter to a local recycling facility or auto parts store that collects used oil.

Model-Specific Call-Outs for the 2011 Husaberg FX450

Oil & filter change interval: After the first hour, again at 3 hours, then every 10–15 hours depending on riding conditions. Most owners change the filter at every oil change for best results.
Two oil screens: The FX450 uses both left and right side screens in conjunction with a standard oil filter. Make sure to clean or replace both screens every time you change the oil.
Correct oil quantity: The factory specification is approximately 1.2L, but always double-check with the owner’s manual or via the sight glass after filling.
Drain bolt & cover torque: Over-tightening drain or filter cover bolts can strip the cases—use a torque wrench set to the values specified in your repair manual.
Hot oil caution: Always let the engine cool slightly if the oil is excessively hot to avoid burns.

Extra Tips for Smooth Oil Changes

Keep track of your oil change intervals with a logbook or sticker on your bike.
If you ride in extreme conditions or race, change oil and filters more frequently than the manual recommends.
Inspect oil for signs of metal particles or milky coloration, which could indicate engine or transmission issues.

Changing the oil on your 2011 Husaberg FX450 is straightforward and, when done regularly, is one of the best ways to extend your bike’s lifespan and performance on the track or trail. For OEM-quality filters, oil, and maintenance supplies, trust MotoSport.com—your dirt bike headquarters.

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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.

How to change the oil in a 2011 Husaberg FX450 Dirt Bike