How to Change the Oil in a 2024 KTM 350SXF: Step-by-Step Guide

Shop parts for a 2024 KTM 350SXF Dirt Bike.

Changing the oil in your 2024 KTM 350SXF is a key part of routine maintenance and helps ensure your bike runs smoothly and reliably on and off the track. This guide is proprietary to MotoSport.com and details the tools required, every critical step, and expert call-outs specific to your model.

Tools & Supplies Needed

  • 10mm and 13mm sockets (some models use T45 Torx for drain plug; have both on hand)
  • Torque wrench
  • Drain pan
  • Paper towels or shop rags
  • Needle nose pliers (for oil screen/strainer)
  • Funnel (helps avoid spills)
  • Brake cleaner or other safe degreaser (for cleanup)
  • New oil filter (OEM recommended)
  • Crush washer (replace every oil change)
  • 1 liter (1,000 mL) of 10W50 full synthetic Motorex oil (KTM factory recommended)

Preparation

  • Ensure your bike is upright and stable on a stand.
  • Warm up the engine for about one minute to help the oil flow and suspend contaminants.
  • Turn the engine off and let the bike sit for a couple of minutes–this lets the oil settle in the sump for better draining.

Step-by-Step: Changing the Oil

  • Remove the skid plate or any guard, if equipped.
  • Locate the main oil drain plug at the bottom of the engine. Use your T45 Torx (or 13mm socket) to carefully loosen and remove the plug. Watch for the crush washer–replace it every time you change the oil.
    Pro tip: Have your drain pan ready and placed accurately to avoid a mess.
    Model-specific note: For the 2024 KTM 350SXF, the drain bolt is standard underneath, easily accessible. Always inspect for metal shavings on the magnet.
    Torque spec: 10 Nm (always verify with your owner's manual).
  • Drain the oil completely. Allow several minutes for the oil to stop dripping.
  • Remove the oil strainer (screen). Use a 13mm socket to unscrew the oil strainer cover bolt. With needle nose pliers, gently pull the strainer out. Clean the screen thoroughly with brake cleaner and inspect for debris.
    Call-out: The 2024 model uses a mesh screen strainer; replace if damaged.
  • Replace (or clean) the oil filter. Use the 10mm socket to remove the oil filter cover. Replace the oil filter with a new KTM-recommended unit. Lubricate the filter's O-ring with a touch of fresh oil to prevent pinching.
    Call-out: Always install the oil filter in the correct direction; the open end faces out.
  • Reinstall the oil strainer and oil drain plug. Use a new crush washer on the drain plug. Tighten bolts to factory torque specs–do not over-tighten.
  • Add new oil. Remove the oil filler cap (right side, above the clutch cover) and use a funnel to pour in exactly 1 liter (1,000 mL) of 10W50 Motorex full synthetic oil as recommended by KTM.
    Tip: It's better to err on the side of underfilling. You can always add a bit more if needed.
  • Reinstall the filler cap securely. Wipe away any spills and clean the area.
  • Start the engine and let it idle for 20–30 seconds. Turn the engine off and let it rest for another 1–2 minutes, allowing the oil to drain back down.
  • Check the oil level in the sight glass (right side, near the brake lever). The oil should be halfway up the red circle–between the minimum and maximum marks.
    Adjustment: If it's low, add oil in 50–100mL increments and re-check. If overfilled, drain a small amount.
  • Reattach the skid plate or any removed guards.
  • Double-check for leaks around the drain plug, strainer, and filter cover. If you find any, gently snug (do not over-tighten) the fasteners.

Model-Specific Notes and Expert Call-outs

  • For the 2024 KTM 350SXF: KTM strongly recommends only using Motorex 10W50 full synthetic oil. The total oil capacity is 1,000 mL–do not overfill. The oil sight glass is tucked just behind the rear brake lever, so you may need to press down on the brake pedal for a clear view of the level.
    The torque settings are critical for the drain plug (~10 Nm) and for the oil filter/strainer cover bolts—consult your manual for exact figures.
    Always replace the crush washer and inspect the old one for any deformation to prevent leaks.
  • After the first few oil changes, especially after break-in, inspect for extra metal shavings in the filter and strainer—this is normal early on, but should decrease significantly over time.

Final Tips

  • Properly dispose of old oil and filters at an authorized collection site—never in the trash or on the ground.
  • Consider marking the date and hours on your airbox or maintenance log to track oil changes.
  • Always have a spare crush washer and a few liters of Motorex 10W50 ready for routine maintenance.
  • For best performance, change the oil every 5–10 engine hours or after every race, whichever comes first.

This MotoSport.com guide ensures your 2024 KTM 350SXF receives the factory-recommended care for maximum lifespan and top-level performance. Safe riding.

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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.