How to Change the Oil in a 2010 Kawasaki KLX140R L (19/16): A Comprehensive Guide by MotoSport.com

Shop parts for a 2010 Kawasaki KLX140L Dirt Bike.

Changing the oil in your 2010 Kawasaki KLX140R L (19/16) is essential for maintaining the bike's engine health and longevity. Follow this detailed, model-specific guide to perform an oil change like a pro, save money, and get to know your dirt bike better.

Tools and Supplies Needed

  • Ratchet and extension
  • 8mm and 17mm sockets
  • Torque wrench
  • Drain pan
  • New oil filter (Kawasaki part number: 52010-1053 or compatible aftermarket)
  • 10W-40 motorcycle oil (API SE, SF, or SG; JASO MA or MA2; 2 quarts for safety–1.22 quarts is required)
  • Crush washer for drain bolt (recommended to replace each change)
  • Funnel
  • Clean shop rags
  • Nitrile gloves (optional, for cleanliness)

Before You Begin: Model-Specific Callouts

  • The 2010 KLX140R L (19/16) shares its oil change procedure with all KLX140 models from 2010 onward. No mechanical changes affect this process across 19/16 wheel versions or year ranges 2010–2021, including the KLX140, KLX140L, KLX140RL, KLX140G, and KLX140RF.
  • Oil Capacity: 1.22 quarts for KLX140L, check your manual if uncertain.
  • Ensure the bike is upright and level when checking oil.
  • Avoid overtightening the drain bolt—stripping is common. The correct torque is typically 22 Nm (16 ft-lb), but always verify in your service manual.

Step-By-Step Oil Change Instructions

  1. Warm up the engine.
    • Start the bike and let it idle for 1–2 minutes. This helps oil flow freely and allows contaminants to suspend in the oil for complete draining.
  2. Remove the dipstick.
    • Turn the engine off and safely prop up the bike on a stand.
    • Unscrew the oil dipstick on the right side of the engine to vent the crankcase—this speeds up draining.
  3. Place the drain pan.
    • Position your drain pan directly beneath the 17mm drain bolt on the lower left side of the engine.
  4. Remove the drain bolt and drain the oil.
    • Use the 17mm socket and ratchet to remove the drain bolt and the crush washer. Allow the oil to fully drain—this may take several minutes.
  5. Replace (or clean) the oil filter.
    • The oil filter is located behind a small cover, typically secured by 8mm bolts.
    • Remove the cover and take out the oil filter.
    • Inspect the filter for debris. Replace it with a new filter for optimal protection.
    • Ensure you note the orientation and be careful not to lose or pinch the rubber O-rings when reinstalling the cover.
  6. Install the drain bolt with new crush washer.
    • Once the oil is fully drained, install a new crush washer on the drain bolt and hand thread the bolt in place.
    • Tighten the bolt with your torque wrench to 22 Nm (16 ft-lb) unless otherwise specified in your owner's manual. Avoid overtightening.
  7. Pour in new oil.
    • Insert a funnel into the dipstick tube.
    • Pour in 1.22 quarts of 10W-40 motorcycle oil.
    • Let the oil settle for a minute.
  8. Check oil level.
    • With the dipstick clean, insert it back into the dipstick tube without screwing it in.
    • Remove the dipstick and check the level; add more if needed, being cautious not to overfill.
  9. Start the engine and recheck oil.
    • Start the engine and let it idle for 30–60 seconds; check for leaks at the drain bolt and filter cover.
    • Turn off the engine and let the bike sit for a minute, then check the oil level again and top off if needed.
  10. Dispose of used oil responsibly.
    • Take your used oil and filter to a recycling facility or auto parts store that accepts oil waste.

Model-Specific Tips and Troubleshooting

  • The KLX140R L engine has no oil filter cartridge, just a standard oil filter—no need for replacement of an external cartridge.
  • If you're struggling to remove the drain bolt, use a breaker bar, but take care not to round the bolt head.
  • The KLX140 series does not require a new oil filter gasket with every oil change, but inspect for signs of wear or damage with each service.
  • Always check the manual for recommended oil type and capacity for temperature and riding conditions.
  • Regular oil changes on the KLX140 should be performed every 10 hours of riding or as prescribed by Kawasaki, especially after muddy or dusty rides.

Your Maintenance, Your MotoSport

This guide is proprietary to MotoSport.com. Master your own maintenance, ride with confidence, and—if in doubt—always refer to your official Kawasaki service manual or consult with a MotoSport.com technician for clarification on any step.

Ride farther, ride smarter—with MotoSport.com.

Related Shopping Categories

Shop Motor Oil for a 2010 Kawasaki KLX140L Dirt Bike.

Shop Oil Filters for a 2010 Kawasaki KLX140L Dirt Bike.

Shop Oil Drain Pans for a 2010 Kawasaki KLX140L Dirt Bike.

Shop Tools for a 2010 Kawasaki KLX140L Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2010 Kawasaki KLX140L Dirt Bike.

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.