How to Change the Oil in a 2011 Kawasaki KLX140R 17⁄14

Shop parts for a 2011 Kawasaki KLX140R 17⁄14 Dirt Bike.

Keeping the engine oil fresh and clean is one of the most important maintenance tasks for your 2011 Kawasaki KLX140R 17⁄14. Regular oil changes help extend the engine’s life, optimize performance, and prevent costly repairs. This guide, exclusive to MotoSport.com, walks you step-by-step through a robust oil change on your KLX140R with expert tips and model-specific callouts.

Tools and Supplies Needed

  • Ratchet and extension
  • 8mm and 17mm sockets
  • Torque wrench
  • Oil drain pan
  • Oil funnel
  • Kawasaki OEM oil filter (part 52010-1053 recommended)
  • Kawasaki drain plug gasket (part 11061-0421 recommended)
  • Brake cleaner (optional, for cleaning spills)
  • Lint-free rags
  • 10W-40 motorcycle oil (1 quart for KLX140R models)
  • Clean containers for used oil

Preparation

  • Start with the bike on a level surface, engine off, and a cool exhaust.
  • Run the engine for a minute to warm the oil. Warm oil drains faster and more completely

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  • Have all your tools and supplies ready. Wear gloves to avoid skin contact with used oil.

Step-by-Step Oil Change Instructions

  1. Remove the Dipstick:
    • The dipstick is located on the right side of the engine. Unscrew and remove it to allow air to vent into the crankcase, which helps the oil drain smoothly

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  2. Drain the Engine Oil:
    • Place the drain pan under the left side of the crankcase.
    • Use your 17mm socket to remove the drains plug and its crush washer

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    • Let all the oil drain into the pan. Inspect the old washer and replace if it's crushed or worn.
  3. Remove and Replace the Oil Filter:
    • Locate the oil filter cover (left side of the engine). Unscrew the cover bolts with an 8mm socket while gently holding the cover to prevent it slipping or the spring shooting out

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    • Remove the cover and the old filter (note the direction of the filter and presence of a spring—assembly must match original placement).
    • Wipe the filter housing with a clean rag.
    • Install the new oil filter, spring side in, and make sure the cover O-ring is not damaged or deteriorated. Replace if needed

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    • Reinstall and hand-tighten the cover bolts in an even, circular pattern, then torque to manufacturer spec.
  4. Install the Drain Plug:
    • Install a new crush washer onto the drain plug.
    • Screw in the drain plug and tighten to manufacturer spec with your torque wrench

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  5. Add New Engine Oil:
    • Place a funnel in the dipstick hole.
    • Slowly add *just under 1 quart* (use 0.95 quarts for KLX140R; double-check the manual or markings). Overfilling can cause pressure build-up and leaks

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    • Wait a minute, then check level with the dipstick not screwed in—just inserted. The oil should be near the upper mark but not over

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    • If needed, add or remove oil until it’s correct.
  6. Final Checks:
    • Start the engine and let it idle for a few minutes. Watch for any leaks at the drain plug and filter cover

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    • Shut off the engine and wait a few minutes; recheck the oil level and top off if necessary.
  7. Clean Up:
    • Wipe up any spills or drips from the bike with brake cleaner and a clean cloth

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    • Dispose of used oil at a recycling center—never pour it down drains or on the ground

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2011 Kawasaki KLX140R 17⁄14 Model-Specific Call-Outs

  • The KLX140R (17⁄14 wheel) takes 0.95 quarts (900ml) of 10W-40 motorcycle oil with filter change

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  • Always check the oil by inserting the dipstick without screwing it in, unless your manual specifies otherwise

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  • The oil filter cover uses a spring. Hold the cover carefully to prevent the spring and filter from falling out when the last bolt is removed

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  • Always inspect the O-rings (on dipstick and filter cover) and replace if cracked or deformed, to avoid leaks

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Pro Tips for a Successful Oil Change

  • Keep a record of the oil change date and hours, especially if riding in harsh conditions or racing.
  • Warm oil drains quickly and helps remove more contaminants.
  • Use only motorcycle-specific oil; automotive oils may not provide adequate clutch protection.
  • Torque all bolts to the correct value to prevent leaks or stripping threads.

Conclusion

Changing the oil in your 2011 KLX140R 17⁄14 is a straightforward job that protects your investment and ensures countless trouble-free rides. Always refer to your owner's manual for any updates and dispose of all fluids responsibly. For more tips or to order OEM parts, count on MotoSport.com—your trusted partner in dirt bike maintenance.

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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.