How to change the oil in a 2024 Husqvarna FC350 Dirt Bike

How to Change the Oil in a 2024 Husqvarna FC350 – MotoSport.com Proprietary Guide

Shop parts for a 2024 Husqvarna FC350 Dirt Bike.

• Estimated time: 30-45 minutes
• Skill level: Beginner to Intermediate
• Model-specific note: The 2024 Husqvarna FC350 shares its core engine layout with KTM and GasGas 350 four-strokes. The procedure is nearly identical across the last several model years, but always refer to your owner's manual for torque specs and capacity numbers specific to your bike.

Tools & Supplies Needed

• 8mm, 13mm sockets and ratchet (for drain, screen, and cover bolts)
• Torque wrench (low-range for small fasteners; highly recommended for proper reassembly)
• Oil catch pan
• Funnel
• New engine oil: 10W-50 full synthetic is recommended (check your owner's manual for Husqvarna's brand recommendation, but Maxima Pro Plus, Motorex Cross Power, Motul, or Bel-Ray are common choices)
• New oil filter (and O-rings/gaskets as needed)
• New crush washers for drain bolt and oil screen (prevents leaks)
• Parts cleaner/contact cleaner (for cleaning parts if needed)
• Gloves and rags
• Measuring cup or graduated cylinder (for precise oil filling; recommended over just dumping in a full bottle)
  Pro tip: Pre-measure oil to avoid overfilling, which can be an issue on these bikes.

Oil Change Steps for the 2024 Husqvarna FC350

• Warm up the engine.
  Start the bike and let it idle for 3-5 minutes. Warm oil drains faster and carries out more contaminants. Then shut the bike off and let it cool slightly, so you're not working with hot parts.
• Stabilize the bike on a stand.
  The FC350 should be level. This ensures accurate oil drainage and correct readings in the sight glass.
• Remove the skid plate (if fitted).
  Not all bikes will have a skid plate, but if yours does, remove it for better access.
• Place the oil catch pan under the engine.
• Remove the oil drain bolt and oil screen plug.
  • Locate the main oil drain bolt (usually 13mm) at the bottom-left of the engine case.
  • Locate the oil screen plug (often 8mm) – refer to your manual for its precise location. The 350 engines have a mesh screen that helps catch debris.
  • Remove both to fully drain the oil. Allow several minutes for draining.
• Remove the oil filter cover.
  • The FC350 has a replaceable cartridge-style oil filter on the right side of the engine (cover held with two bolts).
  • Remove the cover and carefully pull out the old filter. Note the direction/orientation for installation of the new one.
• Inspect and clean.
  • Clean the oil filter cavity, drain plug, and the oil screens with parts/contact cleaner.
  • Check O-rings for cracks or damage. Replace as needed. Always use a new crush washer on reassembly for both the drain and screen plugs to prevent leaks.
• Install new oil filter.
  • Lubricate the O-rings lightly with clean oil before installation.
  • Insert the new filter, oriented in the same direction as the old one. Reinstall the cover and torque its bolts to the spec in your manual (usually around 7 Nm—do not overtighten, as these are easy to strip) .
• Reinstall the oil drain bolt and oil screen plug.
  • Ensure both threads are clean. Hand thread first to avoid cross-threading.
  • Tighten to manufacturer spec using a torque wrench. Specs are commonly around 15 Nm for the main drain and 10 Nm for the oil screen, but check your model-specific manual .
• Add new engine oil.
  • Remove the oil fill cap on top of the right side case.
  • Using a funnel or a measuring cup, add the recommended amount–typically 1.0L for a full drain with filter change on the FC350, but double-check your owner's manual or service sticker.
  • If unsure, fill to the midpoint in the oil sight glass.
• Reinstall the oil fill cap and wipe up any spills.
• Prime the system.
  • Start the bike and let it idle for 1-2 minutes. Then shut it down and let the oil settle for 2-3 minutes.
  • With the bike level, check the oil level at the sight glass (midway is ideal). Top off if needed, but do not overfill .
• Final checks.
  • Inspect for leaks at all service points—oil drain, screen plug, and filter cover.
  • Reinstall the skid plate if applicable.
  • Record the date and engine hour meter reading for future reference. Husqvarna recommends oil changes every 15 hours for most riders, but some owners prefer shorter intervals for hard or race use .

Specific 2024 FC350 Notes and Call-outs

• Filter design: The 2024 model uses a cartridge oil filter and two oil screens (not all older models have dual screens—always check both).
• Torque sensitivity: Many fasteners on the Husqvarna are soft aluminum. Use a proper torque wrench for all oil-related bolts, especially the filter cover (very low torque) to avoid stripping .
• Oil type: Only use premium, motorcycle-specific 10W-50 fully synthetic oil; automotive oils are not suitable for wet clutch engines .
• Oil quantity and level: Always double-check the oil window after running and settling. Overfilling can cause foaming and performance issues.

Why Oil Changes Matter on the FC350

• High-performance four-stroke dirt bikes like the FC350 run hot and rev high—clean oil and a fresh filter are crucial for longevity and top-end performance.
• Regular oil changes flush out clutch material, engine wear particles, and moisture that builds in the crankcase.
• Always record your engine hours and try to stick to a 10-15 hour oil change cycle for hard use or racing; casual riders may stretch to 15, but more often is always better .

Final Thoughts

• Following these steps for your 2024 FC350 ensures you get the maximum reliability, performance, and resale value from your bike. Use proper tools, premium lubricants, and quality filters—your Husqvarna will thank you.
• When in doubt, consult your Husqvarna owner's manual or trusted dealer for confirmation on quantities and torque specs, which can change with minor model updates .

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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.