How to Change the Oil in a 2022 KTM 350SXF – MotoSport.com

Shop parts for a 2022 KTM 350SXF Dirt Bike.

Regular oil changes are the lifeblood of any high-performance dirt bike. For the 2022 KTM 350SXF, keeping fresh oil in the engine is especially important due to its advanced four-stroke, high-revving architecture. This guide is specific to the 2022 model year, with step-by-step instructions, required tools, and key model-specific insights only available here at MotoSport.com.

Tools and Supplies You’ll Need

  • 13mm socket and ratchet
  • 8mm socket and ratchet
  • Pliers
  • Oil filter removal tool (optional, but helpful for stubborn filters)
  • Brake or contact cleaner
  • Shop rags or paper towels
  • Oil drain pan
  • New oil filter
  • High-quality oil (KTM recommends fully synthetic 10W-50 for the 350SXF)
  • Funnel
  • Torque wrench (capable of measuring low torque in Nm)
  • Oil strainer screen cleaning tool or pick

Step-By-Step Oil Change Procedure

  1. Warm Up the Engine: Let your bike idle for a couple of minutes to warm the oil. This helps it drain more completely and carry away contaminants.
  2. Prepare Your Workspace: Place the bike on a stand so it is stable and upright. This ensures proper oil drainage and easy access underneath.
  3. Drain the Oil: Locate the oil drain plug (a 13mm bolt) on the bottom of the engine. Remove the drain plug and allow the oil to drain fully into a clean pan. The 2022 350SXF, like other late-model KTMs, has a magnetic drain plug to catch metal debris—inspect it for signs of abnormal wear.
  4. Clean the Drain Plug and Oil Screen: While the oil is draining, locate the oil screen near the drain plug. Remove the screen cover with a 13mm socket and gently extract the screen. Clean the screen and cover thoroughly with contact cleaner, inspecting for metal particles or debris. Any significant findings should prompt further inspection, as KTMs can be sensitive to contamination.
  5. Remove the Oil Filter: Locate the oil filter under the engine shroud. Unscrew the two 8mm bolts holding the filter cover. Use pliers or a dedicated filter tool if the filter is stuck. Carefully remove the old filter, noting its orientation for the replacement. Inspect the filter and the filter housing for any metal shavings or debris—unusual findings here can indicate developing engine issues.
  6. Install the New Filter: Insert the new oil filter, ensuring it is seated correctly. Replace the filter cover and tighten the two 8mm bolts—take care not to overtighten, using only about 7 Nm of torque. Cross-threading or overtightening can result in expensive repairs to the filter housing.
  7. Reinstall the Drain Plug and Oil Screen: Once oil has fully drained, clean the area around the drain hole. Reinstall the oil screen and its cover, tightening the 13mm bolt to spec. Wipe away any excess oil with a rag.
  8. Add New Oil: Remove the oil fill cap, typically located on the right side of the engine. Using a funnel, add the recommended amount of oil—for the 2022 KTM 350SXF, start with 1.0 liter. Pour slowly and check the oil level window (sight glass) on the side of the engine. The level should be between the upper and lower marks (ideally in the middle of the sight glass) with the bike held upright.
  9. Prime the Oil System: On the 2022+ models, KTM recommends “priming” the oil system before starting the engine after an oil change. Press the starter button briefly (do not start the bike) a few times to circulate oil through the engine—this helps prevent dry starts and potential engine damage.
  10. Check for Leaks: Start the bike and let it idle. Watch for any leaks at the drain plug, oil filter, or screen. Recheck the oil level and top off if necessary.
  11. Dispose of Old Oil: Transfer used oil to a sealed container and recycle it at an appropriate facility.

Model-Specific Call-Outs for the 2022 KTM 350SXF

  • Oil Type: KTM specifies fully synthetic 10W-50 oil for the 350SXF. Using other viscosities or conventional oils can affect performance and engine life.
  • Oil Capacity: The 2022 model holds 1.0 liter with filter change. There is a sight glass, not a dipstick, for oil level checking.
  • Filter Location: The oil filter is located under the engine shroud and is held in by two 8mm bolts—do not confuse this with the oil screen, which is accessed separately.
  • Priming: Pressing the starter briefly (without starting the engine) circulates oil through the system, reducing the risk of dry starts–a critical step for this model.
  • Torque Specs: Oil filter cover bolts: 7 Nm. Oil drain plug: typically 10–12 Nm (always refer to your owner’s manual for final confirmation). Do not overtighten.
  • Cleaning the Oil Screen: The 350SXF uses both a traditional oil filter and a screen. Cleaning this screen each oil change is crucial—debris build-up can block oil flow and cause engine damage.
  • Magnetic Drain Plug: The factory drain plug is magnetic. Check for metal debris each oil change—unusual amounts of metal may warrant a deeper inspection.

Tips for a Hassle-Free Oil Change

  • Always have clean hands and a clean workspace to avoid introducing foreign material during the oil change.
  • Replace all sealing o-rings and washers where required—they are inexpensive but prevent annoying leaks.
  • Use only KTM-recommended oil filters and oil. Cheap alternatives may not meet the demands of KTM’s high-performance engines.
  • Record oil change intervals in a logbook—regular maintenance is key to longevity.
  • If you see significant metal debris or sludge, consider having the engine inspected by a qualified KTM technician.

Troubleshooting Common Issues

  • Oil Leak After Change: Double-check that all bolts and covers are properly tightened to spec. Replace any damaged gaskets or O-rings.
  • Oil Level Too Low: Add oil in small increments and recheck—overfilling can cause oil to enter the airbox and foul the air filter.
  • Oil Level Too High: Drain some oil to reach the correct level. High oil levels can cause increased crankcase pressure and oil consumption.
  • Engine Noise After Change: If you hear unusual noises after the oil change, stop the engine immediately. Double-check the oil level and ensure you’ve primed the system.

Regular, high-quality oil changes are especially important for the KTM 350SXF. This model’s tight tolerances and high-revving nature demand clean oil to perform at its best. By following these thorough, model-specific instructions, you can confidently keep your 2022 KTM 350SXF running at peak performance—courtesy of MotoSport.com, your MX and off-road source for the latest tech tips and expert advice.

Need parts, oil, or accessories for your KTM 350SXF? Check the MotoSport.com catalog for genuine KTM parts, filters, and premium oils—shipped fast and backed by our industry-leading support.

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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.