How to Change the Oil in a 2022 Kawasaki KLX140R L 19⁄16

Shop parts for a 2022 Kawasaki KLX140R L Dirt Bike.

Keeping your 2022 Kawasaki KLX140R L running smoothly requires regular oil changes. With the right tools, fresh oil, and a little know-how, you can tackle this essential maintenance job yourself and ensure maximum engine longevity. This step-by-step guide is tailored for the KLX140R L 19⁄16 and proprietary to MotoSport.com. Always consult your owner’s manual for reference and safety.

Tools and Supplies Needed

  • Ratchet and extension (3⁄8")
  • 8mm and 17mm sockets
  • Oil drain pan
  • Oil funnel
  • Torque wrench
  • Shop rags or paper towels
  • New oil filter (Kawasaki OEM: 52010-1053)
  • New drain plug gasket/crush washer (Kawasaki: 11061-0421 recommended)
  • 10W-40 motorcycle-specific oil (minimum 1.5 quarts to be safe; KLX140R L capacity is 1.22 quarts)
  • CRC brake cleaner or similar (optional for cleaning)
  • Gloves and eye protection (recommended)

Step-by-Step Instructions

  1. Warm Up the Engine
    Start and run your KLX140R L for about a minute to warm up the oil. Warm oil will flow out more easily and carry away more contaminants.
    Tip: Don’t let the engine get too hot—just warm enough to feel the heat on the case.
  2. Prepare the Bike
    Place the bike on a secure, level stand. Remove the seat if it obstructs access to the dipstick or oil fill cap.
  3. Remove the Dipstick/Filler Cap
    Unscrew the dipstick from the engine case. Set it aside on a clean rag. This vents the system and helps oil drain smoothly.
    KLX tip: For the KLX140R L, the dipstick is on the right side of the engine, above the clutch cover. Wipe any debris away before removal to prevent contamination.
  4. Drain the Old Oil
    Position the oil drain pan directly under the crankcase. Use the 17mm socket and ratchet to remove the drain bolt—located at the bottom left of the engine.
    It’s normal for the oil to be dark after use—this means it has been collecting engine contaminants.
  5. Replace the Drain Plug Gasket
    Inspect the drain plug and remove the old crush washer. Always replace this gasket to ensure a proper seal. Reinstall the drain bolt once the oil has fully drained, threading it in by hand first to avoid cross-threading.
    Torque the bolt to manufacturer spec—typically about 22 ft-lbs (30 Nm) for Kawasaki small-bore off-road models, but always confirm in your owner’s manual.
  6. Remove and Replace the Oil Filter
    On the KLX140R L, the oil filter is accessed by removing the cover held by three 8mm bolts on the right side of the engine, just beside the clutch cover.
    Carefully pull off the cover and old oil filter. Be mindful of any springs or dowels inside. Wipe the filter seating surface. Insert the new filter (correctly oriented; see filter or packaging for which end faces in or out) and reinstall the cover.
  7. Fill with Fresh Oil
    Place a funnel in the oil fill port where the dipstick was removed. Add fresh 10W-40 motorcycle oil. Stop at about 1.0 quart, check the level, and slowly top off. The KLX140R L takes 1.22 quarts (1.15L) total.
    Do not overfill.
  8. Check the Oil Level
    Insert the dipstick without threading it in. Remove it and inspect the oil level—it should sit between the “low” and “full” marks.
    Add oil as needed; repeat the check to be sure.
  9. Inspect for Leaks and Test
    Start the engine and let it idle for a minute. Shut off and wait a few minutes, allowing oil to settle. Check the oil level again and look underneath for leaks (especially around the drain bolt and oil filter cover).
  10. Final Cleanup
    Wipe away any residual oil around the crankcase and dispose of the old oil and filter properly at an approved recycling center.

KLX140R L Model-Specific Call-Outs

  • Oil Capacity: The KLX140R L (including the 2022 19⁄16 model) uses 1.22 quarts (1.15 liters) of oil when the filter is changed. Overfilling can cause leaks or poor performance, so be precise when adding oil.
  • Oil Filter Orientation: Be sure to install the new oil filter in the correct direction—refer to your replacement filter illustration or the KLX140R L owner’s manual.
  • Drain Plug Gasket: Always replace the crush washer/gasket to prevent leaks. Reusing an old washer often results in annoying drips or seepage.
  • Torque Specs: Over-tightening the drain plug or filter cover bolts can strip threads in the aluminum engine case. Use a torque wrench if available.
  • Break-in and Initial Service: If this is your bike’s very first oil change after initial break-in, expect the oil to be darker and the filter to show some initial wear debris—this is normal for a new engine.
  • Reuse Intervals: For moderate trail use, Kawasaki recommends fresh oil every 10–15 hours of runtime, or every few months—whichever comes first.

Troubleshooting and Tips

  • If you drop the drain plug or filter components, double-check that all parts (especially the small filter spring) are reinstalled—the engine cannot run safely without them.
  • Always dispose of used oil and filters at an environmental recycling center.
  • If your oil smells burnt, appears metallic, or has excessive debris, consult a mechanic or perform a more thorough inspection.

Oil changes are the simplest way to protect your 2022 Kawasaki KLX140R L. If you follow this guide, you’ll keep your bike running strong for every ride ahead. For more genuine parts or technical help, trust MotoSport.com—your official source for quality dirt bike parts and how-tos.

For further reference and confirmation, always check the official Kawasaki KLX140R L Owner’s Manual.
Happy riding and safe wrenching from MotoSport.com.

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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.