How to Change the Oil in a 2016 KTM 65SX: A Step-by-Step Guide

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Changing the oil in your 2016 KTM 65SX is a crucial maintenance task that ensures optimal performance and longevity of your dirt bike. This guide, made exclusively for MotoSport.com, provides a comprehensive, model-specific breakdown of the process, including essential tools, specific procedural steps, and unique call-outs for the 65SX.

Tools and Supplies Needed

  • 13mm wrench or socket (for drain plug)
  • 15mm wrench or socket (optional, for sight glass removal if needed)
  • Oil catch pan (to collect used oil)
  • Clean rags
  • Funnel
  • Measuring cup or graduated cylinder (to measure new oil precisely)
  • Replacement gear oil (KTM recommends high-quality two-stroke gear oil)
  • Replacement crush washer or O-ring for drain plug (recommended, not always required)
  • Torque wrench (for proper bolt torque)
  • Protective gloves (recommended for safety and cleanliness)

Before You Begin: KTM 65SX-Specific Call-Outs

  • The oil drain bolt is conveniently located on the left side of the engine, just behind the shifter lever. It uses a 13mm wrench/socket for removal–
  • The bike requires 300 ml (0.3 liters) of high-quality two-stroke gear oil for the transmission/crankcase (always verify with your manual for your specific year)–
  • You may wish to replace the O-ring under the fill or drain cap to prevent leaks; these are inexpensive and easy to swap during each change–
  • Changing the oil with the engine warm (but not hot) helps drain old oil more thoroughly–

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine
    • Start the motorcycle and let it idle for a few minutes to warm the oil. This lowers oil viscosity for better drainage. Shut off the engine before beginning work and allow it to cool until safe to touch–
  2. Prepare Your Work Area
    • Place the bike upright on a level surface or a bike stand.
    • Put an oil catch pan beneath the drain bolt location.
    • Have rags ready to clean up any spills.
  3. Remove the Oil Fill Cap
    • Remove the oil fill cap on the right side of the engine to allow air in, which enables oil to drain out faster–
  4. Remove the Drain Plug
    • Using the 13mm wrench/socket, loosen and remove the drain bolt (located just behind the gear shifter and to the left of the engine). Let all the old oil drain completely into the catch pan–
    • If your model has a sight glass or secondary bolt for inspection, you may also remove it with a 15mm wrench if necessary to facilitate drainage (check your manual)–
  5. Inspect, Clean, and Replace Parts as Needed
    • Wipe any metal debris from the magnetic tip of the drain plug. A small amount of fine shaving is normal–
    • Inspect the crush washer or O-ring under the drain bolt and replace if worn or damaged to prevent leaks–
  6. Reinstall the Drain Plug
    • Thread the drain bolt back in by hand to avoid cross-threading.
    • Tighten to KTM's recommended spec: generally around 20 Nm (14.8 ft-lbs) with a torque wrench (check your manual for exact torque for 2016 KTM 65SX)–
  7. Pour in New Oil
    • Measure out 300 ml (0.3 liters) of recommended two-stroke gear oil using your measuring cup–
    • Use a funnel to slowly pour the oil into the fill port. Pour slowly to avoid overflows and check the level as you go–
  8. Replace the Oil Fill Cap
    • Ensure the rubber O-ring is in good condition, then securely screw the fill cap back into place–
  9. Check for Leaks and Clean Up
    • Wipe down any oil spills and start the bike briefly to circulate new oil. Check under the drain area for leaks.
    • Double-check the oil level through the inspection window (if available) once the bike is upright and level.

Model Year-Specific Tips for the 2016 KTM 65SX

  • The required oil quantity is 300 ml (0.3 liters) for this year–do not overfill, as excess oil can lead to clutch slippage or transmission drag–
  • The oil drain bolt may have a magnetic tip to collect metallic particles—always inspect and clean thoroughly.
  • If your drain bolt uses an O-ring, keep extras on hand for regular replacement.
  • Always use bike-specific gear oil—automotive oils lack necessary friction modifiers and protection for wet clutches.

Disposal and Environmental Responsibility

  • Never dispose of used oil in regular trash or drains. Take it to a certified oil recycling center or your local MotoSport.com dealer for safe disposal.

Final Checks

  • Take a short test ride and check for proper shifting and clutch operation. If you hear unusual noises or see oil leaks, re-inspect your work and repeat steps as necessary.

Changing the oil in your 2016 KTM 65SX is straightforward and ensures your bike shifts smoothly and runs reliably on every ride. Performing regular oil changes is one of the easiest ways to guarantee your machine's peak performance and longevity.

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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.