How to change the oil in a 2025 Kawasaki KLX110 Dirt Bike

How to Change the Oil in a 2025 Kawasaki KLX110 – MotoSport.com

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Regular oil changes are essential to keep your 2025 Kawasaki KLX110 running strong and maximizing its longevity. Doing this maintenance yourself not only saves money but also helps you become more familiar with your dirt bike. Use this step-by-step guide, proprietary to MotoSport.com, for a smooth, efficient oil change with important model-specific notes for your KLX110.

Tools & Supplies Needed

• 8mm, 12mm, and 17mm sockets
• 3/8-inch ratchet and extension
• Torque wrench
• Oil drain pan
• Fresh oil (Kawasaki KPO Full Synthetic 10W40; you’ll need about 1 liter)
• Replacement oil filter (if changing; Kawasaki 52010-1053 or equivalent)
• 10mm drain plug crush washer (recommended for a good seal)
• Disposable funnel
• Gloves and sanitize towels/rags

Oil Change Process – Step by Step

• Run the Engine Briefly
  • Start your KLX110 and let it idle for 2-3 minutes. This circulates the oil and helps it drain more thoroughly.
  • CAUTION: The exhaust and parts near the engine will become hot. Use gloves and allow to cool as needed before proceeding.
• Remove the Skid Plate
  • Using the 8mm socket, remove the bolts on each side of the skid plate.
  • Then use the 12mm socket to remove the two bolts behind it.
  • Carefully set the skid plate aside.
• Loosen the Oil Filler Cap
  • Loosen or remove the oil filler cap to allow faster draining and prevent vacuum in the engine case.
• Drain the Old Oil
  • Place an oil drain pan under the engine.
  • Use the 17mm socket to remove the drain bolt.
  • Allow all used oil to fully drain into the pan. Inspect the old oil for large metallic debris.
  • Remove and replace the 10mm crush washer on the drain plug, if applicable.
• (Optional but Recommended) Replace the Oil Filter
  • If you choose to replace the filter (strongly encouraged for a full service), locate and remove the oil filter cover using appropriate tools.
  • Install the new filter (Kawasaki 52010-1053 or equivalent), making sure the sealing surfaces are clean.
  • Reinstall the filter cover, tightening to manufacturer torque specification.
• Reinstall the Drain Plug
  • Thread the drain plug by hand to avoid cross-threading, then tighten with the 17mm socket and torque wrench to factory specification (consult your owner’s manual for the correct setting).
• Refill with New Oil
  • Place a funnel in the oil filler opening.
  • Add fresh oil: 1.0 liter if replacing the filter, or 0.9 liters if not.
  • Clean and reinstall the filler cap.
• Check for Leaks and Confirm Oil Level
  • Start the engine and let it run for about 3 minutes, then shut off and let it sit for a few minutes.
  • With the bike upright and on level ground, check the oil level in the sight glass, located at the side of the engine.
  • The oil should be between the upper and lower marks. Top off if needed.
  • Check around the drain plug and oil filter area for leaks.
• Reinstall the Skid Plate
  • Put the skid plate back on using the 8mm and 12mm bolts. Tighten securely.
• Dispose of the old oil and filter responsibly at a recycling center or auto parts store.

2025 Model-Specific Call-Outs

• No major change from previous model years (2002–2024). If you’re familiar with KLX110 oil changes, the 2025 process remains the same. The drain plug, filter, and fill location are unaltered compared to recent models.
• Sight glass calibration remains critical. Do not overfill; excess oil can cause foaming and internal pressure issues. It’s common for people to misread the sight glass, so double-check on flat ground with the bike upright.
• Skid plate removal is required (as in prior models) for proper oil drain and plug access. Skip this step only if your aftermarket skid plate provides direct oil drain access.
• Filter replacement is service-interval dependent; consult your service schedule but consider replacing the filter every other oil change for best performance.

Useful Tips

• Always use the correct grade and specification of oil: 10W40 is standard for most climates.
• Hand-thread the drain and filter cover bolts to prevent stripping.
• Double-check the old O-ring or gasket comes off with the filter – a stuck gasket can cause leaks with the new filter install.
• Keep a log of oil changes for future maintenance planning.

Final Inspection & Ride

• After reassembly, take the KLX110 for a short ride.
• Park, let it settle, check for leaks again, and confirm the oil is still within the sight window marks.
• Your 2025 KLX110 is now ready for your next ride, with fresh oil safeguarding your engine.

MotoSport.com is your go-to source for all Kawasaki KLX110 oil change kits, filters, and parts. Enjoy longer rides and more confidence knowing your maintenance is done right.

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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.