How to Change the Oil in a 2024 Kawasaki KLX140R L 19/16

Shop parts for a 2024 Kawasaki KLX140R L 19/16 Dirt Bike.

Changing the oil is one of the simplest and most critical maintenance tasks for your 2024 Kawasaki KLX140R L 19/16. Regular oil changes ensure engine longevity and optimum performance. This guide is proprietary to MotoSport.com and provides a comprehensive, step-by-step walkthrough tailored for this specific dirt bike model.

Tools and Supplies Needed

  • Ratchet and extension
  • 8mm and 17mm sockets
  • Drain pan
  • Torque wrench
  • New oil filter (OEM recommended)
  • 10W-40 motorcycle oil (1.22 quarts / 1.15 liters)
  • Funnel
  • Replacement crush washer (for drain bolt, if needed)
  • Disposable gloves (optional, for cleanliness)
  • Clean rags or towels
  • Oil recycling container

Preparation

  • Make sure the motorcycle is on a stable, flat surface–ideally on a motorcycle stand.
  • Gather all tools and supplies before beginning.
  • Read through all steps beforehand to ensure understanding and efficiency.

Step-by-Step Oil Change Guide

  1. Warm Up the Engine
    • Start the engine and let it idle for about 1–2 minutes. Warm oil flows better and carries away more contaminants when drained.
  2. Remove the Dipstick
    • Shut off the engine and remove the oil filler cap/dipstick from the right crankcase cover. This allows the crankcase to vent and helps oil drain more thoroughly.
  3. Drain the Old Oil
    • Place your drain pan under the lower left side of the crankcase.
    • Use the 17mm socket to loosen and remove the drain bolt and its crush washer. Allow oil to fully drain into the pan.
      Note: Replace the crush washer if it appears damaged or fatigued.
  4. Remove and Replace the Oil Filter
    • Using an 8mm socket, remove the bolts securing the oil filter cover.
    • Carefully pull off the cover; some residual oil may leak here—prepare rags or tape newspaper below to catch drips.
    • Remove the old oil filter and inspect both filter and cover for debris or metal particles, which could indicate internal wear.
    • Install the new oil filter in the same orientation as the old one. Clean the sealing surface and lightly oil the filter's O-ring.
    • Reinstall the filter cover and torque the bolts to manufacturer specs (typically 8–10 Nm for the KLX140 family).
  5. Reinstall the Drain Bolt
    • Once oil stops dripping, reinstall the drain bolt with the crush washer.
    • Torque the drain bolt to manufacturer specification: typically around 20 Nm (consult your owner's manual for exact figures).
  6. Add New Engine Oil
    • Insert a clean funnel into the oil filler opening and pour 1.22 quarts (1.15 liters) of 10W-40 motorcycle oil into the engine.
    • Model-specific tip: The KLX140R L uses a wet-clutch system, so only use motorcycle-specific oil to avoid clutch slippage.
    • Remove the funnel, wipe away spills, and reinstall the oil filler cap/dipstick and O-ring.
  7. Check and Adjust Oil Level
    • With the bike upright (not on the kickstand), remove the dipstick again and wipe it clean.
    • Insert it back without screwing in, then remove and read your oil level. It should be between the “Low” and “Full” marks.
    • If necessary, top off oil gradually. Do NOT overfill—excess oil may cause aeration, leaks, or damage to the lubrication system.
  8. Start the Engine & Check for Leaks
    • Start the engine and let it idle for a few minutes.
    • Inspect the drain bolt, filter cover, and filler cap areas for any leakage. Address leaks by tightening fasteners to specification.
    • Shut down the engine, allow it to rest for several minutes, and re-check oil level. Adjust as needed.
  9. Clean Up
    • Clean up oil drips from the engine and disposal area.
    • Pour used oil into an appropriate recycling container and take to your local recycling center or auto parts store for proper disposal.
    • Examine the old oil and filter for abnormal particles or metallic shavings; consider consulting a professional if any are found.

Year-Specific Call-Outs for 2024 KLX140R L 19/16

  • The procedure and capacity specifications have been consistent for the KLX140R L from 2010 onward, with no significant changes for 2024 noted by experts.
  • The oil filter location, drain bolt size, and oil recommendations have remained the same, making any high-quality instructions for 2010+ KLX140R L applicable for 2024 owners.
  • Always use a new crush washer for the drain bolt if signs of wear or flattening are present, to prevent leaks.
  • Avoid using automotive oil, as the motorcycle's wet-clutch requires motorcycle-specific oil to prevent clutch issues.

Final Notes

  • Record the date and hours/mileage of your oil change for future maintenance tracking.
  • Follow the recommended oil change interval listed in your owner's manual for best engine health—typically every 10 hours or one riding season, but always check based on use and conditions.

If you have any doubts or discover any leaks or irregularities, consult your authorized Kawasaki service center. Keeping up with this basic maintenance will maximize your bike's performance and lifespan.

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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.