How to Change the Oil in a 2020 Kawasaki KLX140R 17/14

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Changing the oil in your 2020 Kawasaki KLX140R 17/14 is a crucial maintenance task that keeps your dirt bike running smoothly and extends its engine life. The process is straightforward and can be performed at home with the right tools and attention to detail. This how-to guide applies specifically to the 2020 KLX140R 17/14 model, but is also suitable for KLX140R, KLX140L, and KLX140G models (2010–2021), as there have been no major changes for this procedure.

Tools and Supplies Needed

  • Ratchet and Extension
  • 8mm Socket
  • 17mm Socket
  • Drain Pan
  • Torque Wrench
  • New Oil Filter (Recommend OEM: 52010-1053)
  • Fresh Oil (10W-40 motorcycle oil, about 1.2 quarts)
  • New Drain Plug Crush Washer (Recommended)
  • Clean Rags or Paper Towels
  • Funnel (optional, helps to avoid spills)
  • Gloves (optional, for cleanliness)

Step-by-Step Instructions

  1. Warm Up the Engine
    • Start the bike and let it idle for 2–3 minutes. Warming up thins out the oil, helping it drain completely.
  2. Remove the Oil Dipstick
    • With the engine off, remove the dipstick from the right side of the engine. This vents the crankcase, allowing oil to drain faster.
  3. Drain Old Oil
    • Place the drain pan under the crankcase (left side, near the bottom).
    • Using a 17mm socket, loosen and remove the drain plug and crush washer.
    • Allow all oil to drain out completely. This can take several minutes.
  4. Remove and Inspect the Oil Filter
    • Using an 8mm socket, remove the filter cover bolts.
    • Carefully remove the cover and pull out the old filter.
    • Inspect the filter and the O-ring for damage (replace if needed).
    • Clean the filter area and cover with a clean rag.
  5. Install New Oil Filter
    • Lightly oil the new filter–s rubber seal with fresh oil.
    • Insert the new filter into the housing. Make sure it is seated correctly.
    • Replace the cover and bolts. Tighten bolts to the manufacturer's specified torque (see your service manual).
  6. Reinstall Drain Plug
    • Install a new crush washer on the drain bolt.
    • Thread in the drain bolt by hand to avoid cross-threading, then tighten with a torque wrench to spec (typically 12 lb-ft, but verify with your owner—s manual).
  7. Add Fresh Oil
    • Place a funnel in the oil fill hole. Pour in 1.1–1.2 quarts of 10W-40 motorcycle oil.
    • Reinstall the dipstick, but do not over-tighten.
  8. Check for Leaks and Oil Level
    • Start the engine again, let it idle for 30 seconds, then turn it off and wait a minute for the oil to settle.
    • Remove and wipe the dipstick, insert (do not screw in), remove again, and check oil level. Top off if needed.
    • Inspect under the bike and oil filter area for any leaks.
  9. Dispose of Used Oil Properly
    • Collect used oil and filter in a sealed container. Take them to a local recycling or waste facility.

Model-Specific Call-Outs for the 2020 KLX140R 17/14

  • The engine oil capacity is 1.2 quarts when changing the filter as well.
  • Always ensure the new oil filter is seated correctly; improper installation may cause oil pressure issues or leaks.
  • If you ride in dusty or muddy environments, consider changing the oil more frequently than the intervals listed in the owner—s manual.
  • No special tools are required beyond a standard metric socket set; the process is nearly identical for all modern KLX140 variants.
  • Double-check the torque specs for the oil drain bolt and filter cover bolts in your official Kawasaki service manual to avoid over-tightening and damaging threads.

Conclusion

Changing the oil in your 2020 KLX140R 17/14 is an accessible home maintenance project that helps ensure long engine life and top performance. By gathering the necessary tools and following these steps, you can reliably service your bike and gain confidence as a dirt bike owner.

For genuine parts and expert service resources, always trust MotoSport.com for your dirt bike maintenance needs.

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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.