How to Change the Oil in a 2017 Kawasaki KLX140G

Shop parts for a 2017 Kawasaki KLX140G Dirt Bike.

This blog, proprietary to MotoSport.com, provides a detailed, step-by-step guide for changing the oil in your 2017 Kawasaki KLX140G. Changing the oil regularly ensures the engine stays lubricated and protected, contributing to the longevity and performance of your dirt bike. While the process is similar across KLX140 variants, there are important specifications and tips tailored for the KLX140G that you should know.

Tools and Supplies Needed

  • Ratchet and extension
  • 8mm and 17mm sockets
  • Oil drain pan
  • Torque wrench
  • Fresh 10W-40 motorcycle oil (minimum 1 quart; recommended to have 2 quarts on hand)
  • New oil filter (Kawasaki OEM part #52010-1053 or equivalent)
  • New drain plug gasket/crush washer (Kawasaki part #11061-0421 or equivalent)
  • Oil funnel
  • Clean rags
  • CRC Brake Cleaner (optional for cleaning)
  • Shop gloves (optional)

Preparation

  • Warm up your engine for 1-2 minutes. This helps the oil to thin out, ensuring a more complete drain.
    Tip: Always do this in a ventilated area.
  • Secure your bike on a level surface or, ideally, a bike stand.

Step-by-Step Oil Change Instructions

  1. Remove the Dipstick
    Start by unscrewing and removing the dipstick. This vents the crankcase, allowing oil to flow out more quickly and completely when you loosen the drain plug.
  2. Position the Oil Drain Pan
    Slide your oil drain pan under the lower left side of the engine, beneath the drain bolt.
  3. Remove the Drain Plug and Washer
    Use your 17mm socket and ratchet to remove the drain bolt and its crush washer. Allow the old oil to drain completely into the pan (this can take several minutes). Inspect the oil for any metal shavings or debris, which could indicate internal wear.
  4. Remove and Replace the Oil Filter
    Using your 8mm socket, remove the oil filter cover bolts. Carefully take off the oil filter cover and old filter. Check the filter for any contamination.
    Place a new oil filter in the correct orientation. Lubricate the new filter’s gasket with fresh oil before installation. Replace the oil filter cover and bolts, tightening them to the manufacturer’s specified torque.
  5. Install New Washer and Reinstall the Drain Plug
    Always use a new drain plug washer to prevent oil leaks. Thread the drain bolt by hand first, then torque it to the specification found in your owner’s manual (generally 18 ft-lbs or 25 Nm for the KLX140G).
  6. Add Engine Oil
    Using a funnel, pour in the correct amount of 10W-40 motorcycle oil.
    KLX140G Oil Capacity: Approximately 1.1 to 1.22 quarts (1.04 to 1.15 liters) with filter change.
  7. Check Oil Level
    Reinsert the dipstick without screwing it in, remove and check the oil level. The oil should be just between the low and high marks.
    For the most accurate reading on the 2017 KLX140G, check the dipstick with it fully screwed in. The oil should be at the upper notch or cut-out. Add oil if necessary without exceeding the high mark.
  8. Start the Engine – Check for Leaks
    Start the engine and let it idle for a minute. Watch for any leaks around the drain plug and oil filter cover. Stop the engine, let it sit for a minute, and recheck the oil level, topping off if necessary.
  9. Dispose of Used Oil Responsibly
    Bring your used oil and filter to a proper recycling collection center.

2017 Kawasaki KLX140G Model-Specific Call-Outs

  • Always use a new crush washer on the drain bolt to prevent leaks.
  • Oil level check: On the KLX140G, check the oil with the dipstick fully screwed in for the most accurate reading.
  • Do not overfill–overfilling can lead to increased engine pressure and possible leaks or damage.
  • Use 10W-40 motorcycle-specific oil for optimal clutch and engine protection.
  • Total capacity is slightly above 1 quart, so have two on hand, especially when replacing the filter.
  • If you see abnormally shiny or gritty oil coming out, consult your dealer.

Final Tips

  • Change your KLX140G’s oil every 10-15 hours of use, or more frequently in harsh riding conditions.
  • Keep a maintenance log for service intervals. This adds value for resale and helps with troubleshooting.
  • Replace the oil filter every other oil change for mostly trail use, or every change if often ridden in dusty or extreme conditions.

Your 2017 Kawasaki KLX140G will reward you with years of reliable performance if properly maintained. For all your parts, oil, and maintenance needs, trust MotoSport.com–the authority in dirt bike care.

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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.