How to Change the Oil in a 2013 KTM 500 EXC

Shop parts for a 2013 KTM 500 EXC Dirt Bike.

Regular oil changes are essential to keep your 2013 KTM 500 EXC performing at its best. This guide, proprietary to MotoSport.com, will walk you through a robust, step-by-step process for a complete oil change, ensuring you avoid common pitfalls and maximize your bike’s longevity.

Tools & Parts Needed

  • Metric socket set (especially 8mm, 13mm, and 17mm)
  • Torque wrench (ft-lbs scale recommended for accuracy)
  • Drain pan
  • Funnel
  • Clean rags
  • Oil filter (OEM recommended)
  • Replacement O-rings (these are often supplied with OEM filters, otherwise reuse if in good condition)
  • Engine oil (KTM recommends Motorex Cross Power 4T 10W-50, capacity: 1.6 quarts or 1.5 liters for the 2013 model)
  • Rubber gloves
  • Plastic screens brush (optional for cleaning oil screens)

Key Call-Outs for the KTM 500 EXC 2013 Model

  • The bike uses two oil screens and one drain plug; both screens must be cleaned each oil change.
  • Correct torque is critical: Drain plug – 15 ft-lbs, oil screens – 11 ft-lbs, oil filter cover – 4 ft-lbs. Overtightening can damage threads or crush O-rings.
  • The correct capacity is 1.6 quarts (1.5 liters). Avoid overfilling, as doing so can push oil past the filter when reinstalling the cap.
  • Use KTM's recommended Motorex 10W-50 oil for peak protection and performance.

Oil Change Steps

  1. Warm up the engine: Run the bike for a few minutes. Warm oil drains faster and carries away more contaminants.
  2. Remove the skid plate (if fitted): Use the socket set as needed for access to the drain plug and screens.
  3. Place a drain pan under the engine.
  4. Remove the main oil drain plug (bottom of the engine): Use the correct socket. Allow oil to fully drain.
  5. Remove the two oil screens:
    • There is a side oil screen and a bottom oil screen.
    • Remove each using the appropriate socket. Clean both screens with brake cleaner or a gentle rinse, and inspect the O-rings for wear or damage. Replace if necessary.
  6. Reinstall oil screens and main drain plug:
    • Ensure O-rings are in good condition or replaced.
    • Tighten oil screens to 11 ft-lbs and main drain plug to 15 ft-lbs with a torque wrench.
  7. Replace the oil filter:
    • The oil filter is on the engine’s right side under a small cover. Remove the cover bolts gently (very low torque required; do not overtighten). Cover torque is only 4 ft-lbs.
    • Remove the old filter, noting orientation and any residual oil.
    • Install a new OEM filter with new O-ring (or reuse if in good condition and clean). Insert filter slowly to avoid overflow.
    • Replace the cover and torque to spec.
  8. Add new engine oil:
    • Use a funnel to fill with 1.6 quarts (1.5 liters) of Motorex 10W-50.
    • Do not overfill; the oil should reach the center of the sight glass when the bike is level.
  9. Start the engine:
    • Let it idle for 2 – 3 minutes, then shut off.
    • Wait a few minutes and recheck the sight glass; add oil if level is low.
  10. Dispose of old oil responsibly.

Additional Tips Specific to the 2013 KTM 500 EXC

  • Recommended Service Intervals: The owner’s manual suggests oil and filter changes every 15 hours of use or after every race. For expedition or light-use riding, experienced owners suggest 20–25 hours, but more frequent changes never hurt. Always adapt intervals to your riding style and terrain.
  • Do not overtighten bolts: KTM crankcases are soft alloy and susceptible to thread damage if over-torqued, especially oil screens and filter cover.
  • Check for leaks: After your first ride, inspect around the drain plug, oil screens, and filter cover for seepage.
  • Use quality parts: Always use OEM or quality aftermarket filters and O-rings for best performance and fit.

With these steps, you’ll ensure your 2013 KTM 500 EXC stays in peak condition. Accurate torque, correct oil amount, and careful cleaning are the secrets to long and reliable engine life. Take your time, follow the manual, and enjoy the confidence that comes from expert-level maintenance.

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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.