How to Change the Oil in a 2007 KTM 400XCW

Shop parts for a 2007 KTM 400XCW Dirt Bike.

Changing the oil regularly in your 2007 KTM 400XCW is critical for maintaining top engine performance and longevity. This bike, part of KTM's renowned RFS (Racing Four Stroke) series, features a unique oiling and filtration system, so following the correct process helps prevent damage and ensures reliability. This proprietary MotoSport.com guide will walk you through every step, point out essential tools, and call out KTM-specific tips for this year's model.

Tools and Supplies Needed

  • Engine oil: Check the owner's manual for recommended type and quantity (typically 10W-50 full synthetic for RFS engines; ~1.7 quarts).
  • Oil filter: OEM or high-quality aftermarket for KTM 400XCW
  • Drain pan
  • 13mm socket or wrench
  • 8mm socket or wrench
  • Torque wrench (recommended)
  • Funnel
  • Brake cleaner/contact cleaner
  • Paper towels/rags
  • Gloves (optional but recommended)
  • Replacement crush washers (if necessary)
  • Service manual (for reference)

Step-by-Step Oil Change Process

  1. Warm up the engine
    • Start the bike and let it idle for several minutes. Warm oil flows and drains more thoroughly, helping you remove as much old oil as possible.
  2. Stabilize the bike
    • Place the bike upright on a level surface or, ideally, a shop stand to maintain stability during the process.
  3. Remove the oil filler cap
    • The filler cap is located on the right side of the engine. Removing it allows oil to drain faster and more smoothly.
  4. Remove the drain plugs
    • There are two drain plugs on the 2007 KTM 400XCW:
    • Rear drain plug: Located at the back underside of the engine. Use a 13mm socket. This plug has a magnet; check it for metal debris.
    • Front (screen) drain plug: In front of the rear plug, near the frame downtube. This plug houses the long oil screen.
    • Place the drain pan underneath and methodically remove both plugs, letting the oil fully drain.
  5. Clean the plugs and screens
    • Rear drain plug magnet: Inspect for metal shavings. A small amount is normal; excessive debris may indicate an internal issue.
    • Oil screens: Remove both (rear and long forward screen under the shifter) and use brake cleaner/contact cleaner to spray out built-up debris.
  6. Replace oil filters
    • The 2007 400XCW uses two oil filters (short and long):
    • Locate and remove the filter covers with an 8mm socket.
    • Pull out the old oil filters and clean the housing area. Lubricate the new filters with clean oil before installing.
    • Reinstall the filter covers, taking care not to overtighten.
  7. Reinstall screens and drain plugs
    • Insert the cleaned screens and reinstall both drain plugs. If you notice damage to any crush washer, replace it. Tighten both plugs to the manufacturer's torque specification (refer to your manual, typically 15 Nm for oil drain plugs).
  8. Add fresh oil
    • Using a funnel, slowly pour the new oil into the filler neck. Pour about 1.7 quarts but check your manual for exact spec for the 400XCW.
    • Replace the filler cap and wipe away any spills.
  9. Start and inspect
    • Start the engine and let it idle for a couple of minutes. Watch for oil leaks around drain plugs and filter covers.

    • 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.