How to Change the Oil in a 2017 Kawasaki KX100

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Changing the oil on your 2017 Kawasaki KX100 is a vital maintenance task to keep the transmission running smoothly and extend the life of your dirt bike. Here's a step-by-step guide brought to you by MotoSport.com to help you get the job done right, with specific tips for the KX100.

Tools and Supplies Needed

  • 14mm socket and socket wrench
  • Measuring cup, graduated to at least 700ml
  • Oil drain pan
  • Funnel
  • Clean shop rags
  • 700ml of 10W-40 transmission oil (quality motorcycle-specific gear oil or manufacturer recommended type)
  • Torque wrench (optional, but recommended for re-installing drain bolt)
  • Nitrile gloves (optional, for cleaner work)

Model-Specific Call-Outs: 2017 Kawasaki KX100

  • This is a 2-stroke bike—the “oil” you’re changing is transmission/gear oil, not engine oil.
  • Kawasaki specifies 700ml of oil for the KX100 gearbox.
  • Bolt threads on the KX100–s drain plug are easily stripped if overtightened—be careful when re-installing.
  • Always check oil level through the inspection notch after filling–avoid under- or over-filling.
  • Recommended oil change interval: every 3–5 hours of riding–or after every competition event.

Step-by-Step Instructions

1. Warm Up the Engine

  • Start your bike and let it idle for about a minute. This helps the oil flow out more easily when drained, carrying away more contaminants.

2. Prepare Your Workspace

  • Put the bike on a stand or level surface so it’s upright (not leaning on the kickstand).
  • Place your oil drain pan directly under the drain bolt.

3. Remove the Drain Plug

  • Locate the transmission oil drain bolt on the bottom of the engine casing.
  • Use the 14mm socket to loosen and remove the drain bolt. Allow oil to fully drain into the pan.
  • Watch your hands—the oil can be warm.

4. Inspect and Reinstall the Drain Plug

  • Check the drain bolt and crush washer for wear or damage. Replace as needed.
  • Clean the bolt with a rag before reinstalling.
  • Screw the drain plug back in by hand to avoid cross-threading, then tighten snugly (be careful—do not over-tighten or you could strip the case threads)

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5. Fill with Fresh Oil

  • Measure out 700ml of 10W-40 transmission oil using your graduated cup

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  • Remove the oil fill cap (located on the right side of the engine).
  • Place the funnel in the fill hole and slowly pour in the oil.
  • Replace and snug the fill cap once all oil is in the engine

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6. Confirm Proper Oil Level

  • Stand the bike upright, not leaning.
  • Locate the oil level inspection notch on the rear side of the engine case (just behind the clutch cover)

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  • The oil should be level with the bottom of this notch. If it is not, carefully add more oil, or, if overfilled, let a little oil out via the drain plug.

7. Clean Up and Dispose Responsibly

  • Wipe any spilled oil from the engine casing and nearby surfaces.
  • Dispose of old oil properly by taking it to a recycling center or auto parts store that accepts used oil.

8. Start and Check for Leaks

  • Start the bike and let it idle for a minute while checking the drain and fill plug areas for leaks.
  • If you notice any leakage, turn off the bike and recheck tightness on plugs.

Additional Tips for 2017 KX100 Owners

  • Do not use standard four-stroke engine oil—use transmission/gear oil rated for use in wet clutch systems.
  • If you ride in muddy or wet conditions, consider changing the oil more frequently to prevent clutch/transmission damage.
  • Always check your service manual for recommended oils and torque specs.
  • Replace the drain plug washer every few changes to ensure a reliable seal.

Conclusion

Changing your oil is quick—once you’ve done it a couple times, the process should take less than 15 minutes. By following these steps for your 2017 Kawasaki KX100, you’ll keep your transmission running strong and your dirt bike ready for the track or trail every ride.

For all your maintenance needs and genuine Kawasaki parts, trust MotoSport.com to keep you riding.

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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.