How to Change the Oil in a 2020 KTM 350 XCF: MotoSport.com Proprietary Guide

Shop parts for a 2020 KTM 350 XCF Dirt Bike.

Regular oil changes are critical for maintaining the performance and longevity of your 2020 KTM 350 XCF. This guide covers everything you need: tools, step-by-step instructions, model-specific tips, and key considerations for the 2020 KTM 350 XCF. Follow each step to ensure a quick, clean, and professional oil change—keeping your bike race-ready and safe for every ride.

Tools & Supplies Needed

  • 8mm, 13mm socket & ratchet (for drain plugs and screen)
  • T-handle wrench
  • Torque wrench (capable of low torque settings, ~7-10 Nm)
  • Lock ring pliers (for oil filter)
  • Oil drain pan
  • Funnel
  • Contact/brake cleaner
  • Lint-free shop towels
  • KTM oil filter (OEM recommended)
  • Crush washer (replace if damaged)
  • KTM-recommended 10W-50 oil (MotoX or equivalent, 1 liter)
  • Gloves (optional, to keep hands clean)

Step-by-Step Oil Change Instructions

  1. Warm up your bike:
    • Start the engine and let it idle until it reaches normal operating temperature (~3-5 minutes). This helps the oil drain out smoothly with any contaminants suspended.
    • Turn the engine off before proceeding.
  2. Secure your bike:
    • Place your 350 XCF on a stand or level surface to prevent tipping.
  3. Remove skid plate (if equipped):
    • Use the correct tool to remove the skid plate for clear access to the oil drain area.
  4. Drain the engine oil:
    • Place the oil drain pan under the bike.
    • Remove the main oil drain bolt (13mm) at the very bottom of the engine. Let oil drain completely.
    • Remove the magnetic drain plug (clean any metal shavings off the plug).
    • Remove the oil screens (use 8mm socket and pliers as needed); clean screens with brake/contact cleaner.
    • Check the drain bolt crush washer; replace if it looks flattened or damaged.
  5. Remove and replace the oil filter:
    • Locate and remove the oil filter cover using your socket, then pull out the old oil filter with lock ring pliers.
    • Compare the new filter to the old for correct fitment.
    • Clean the sealing surface. Lubricate the new filter O-ring/housing lightly with fresh oil.
  6. Model-Specific Step (KTM 350 2020):
    • Lean the bike on its right side and fill the oil filter reservoir 1/3 full with fresh oil before inserting the new filter. This pre-primes the oiling system, recommended by KTM for proper lubrication at start-up.
      “Lean the bike over on its side and fill the oil filter reservoir up about 1/3…”
      (KTM/Owner’s Manual and user video instructions)
  7. Install new oil filter:
    • Insert the new filter. Carefully reinstall the filter cover, checking the O-ring for debris/damage. Tighten bolts by hand first, then snug with a wrench—do not overtighten (7.4 Nm recommended torque).
  8. Reinstall drain plug and screens:
    • Reinstall the cleaned oil screens and drain plug, using a new or good condition crush washer. Tighten to manufacturer-spec (–10 Nm for main plug, 7.4 Nm for screens)—do not overtighten, as threads are easily stripped on KTM cases.
  9. Add new oil:
    • Remove the oil fill cap on the right side of the engine. Insert a funnel, then add exactly 1 liter of KTM-recommended 10W-50 oil. Pour slowly to prevent overflow.
    • Reinstall the oil fill cap and wipe up any spills with a clean cloth and contact cleaner.
  10. Prime the oil system:
    • Optionally, hold the kill switch and crank the starter a few times to help prime oil through the new filter before first start.
  11. Start and check for leaks:
    • Start the engine and let it idle for 1–2 minutes. Shut off, then check for leaks around the drain plug, screen ports, and filter cover.
  12. Check oil level:
    • With the bike upright on level ground, look at the site glass: proper oil level is in the middle of the small circle.
    • If necessary, top off oil in small increments for correct level.
  13. Dispose of used oil properly.
    • Take the used oil to a local recycling center—never dump it down the drain or onto the ground.

Model-Specific Call-outs for 2020 KTM 350 XCF

  • 2020-on KTM 350 XCF models use a two-screen oil filtration system; both must be removed and cleaned at each oil change.
  • Very low torque values for drain and screen bolts (7.4 Nm)—over-tightening can easily damage the magnesium cases.
  • Oil reservoir priming (tilt bike on side and fill filter cavity 1/3 full) minimizes dry start-up and is strongly recommended by factory instructions.
  • Use KTM-recommended 10W-50 full synthetic oil for maximum engine protection.
  • Most oil changes require exactly 1 liter; do not overfill. Measure with site glass after first warm-up and cooling cycle.

Final Tips

  • Write down the service date and engine hours; KTM recommends oil changes every 15 riding hours for race/track use, or longer for light trail riding.
  • Visually inspect drained oil for metal particles; excessive shavings could indicate a wear issue needing further diagnosis.
  • Always use an OEM or reputable aftermarket filter. Cheap filters risk catastrophic engine damage.

Follow this MotoSport.com expert guide, and your KTM 350 XCF will stay reliable, fast, and ready for the next adventure.

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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.