How to Change the Oil in a 2019 Kawasaki KLX140G: A Complete Guide for MotoSport.com Riders
Shop parts for a 2019 Kawasaki KLX140G Dirt Bike.
Regular oil changes are essential for maintaining the performance and longevity of your 2019 Kawasaki KLX140G. Below is a robust, step-by-step guide, proprietary to MotoSport.com, covering tools needed, the necessary process, and important model-specific notes for a confident DIY oil change.
Tools & Supplies Needed
- Ratchet and extension
- 8mm and 17mm sockets
- Drain pan
- Torque wrench
- Clean rags or paper towels
- 1.2 quarts (1.22 quarts per official spec) of 10W-40 motorcycle oil
- New oil filter (Part #52010-1053 or equivalent)
- New crush washer for drain bolt (recommended but not mandatory)
- Funnel
- Gloves (optional but preferred for cleanliness)
Step-by-Step Oil Change Instructions
-
Warm up the engine.–
Start your KLX140G and let it idle for one or two minutes. This warms the oil, helping it drain out smoothly and bringing contaminants into suspension.
Tip:– Do not allow the engine to become hot—just warm.
Source: Step 1 from Partzilla, Road & Trail -
Remove the dipstick.–
Shut off the engine. Unscrew and remove the oil dipstick to allow air into the crankcase–this helps the oil drain more quickly and completely.
Source: Step 2 from Partzilla -
Drain the oil.–
Place your drain pan under the left side of the crankcase. Using a 17mm socket and ratchet, remove the drain bolt (and crush washer) from the bottom left of the engine. Allow all oil to thoroughly drain.
Note:–Be carefulthe oil can be hot. Dispose of old oil responsibly at a local recycling point.
Source: Step 3 from Partzilla -
Remove and replace the oil filter.–
The filter is typically housed on the right side of the crankcase, behind a cover secured by 8mm bolts. Remove these bolts, gently pull off the cover, and remove the old filter. Replace with a new filter, ensuring it is oriented correctly.
Wipe off the filter cover's sealing surface and inspect the O-ring. Replace the O-ring if damaged. Reinstall the cover and torque the bolts evenly to spec (refer to your factory manual for recommended torque–typically around 7-8 ft-lbs for small bolts).
Source: Partzilla & Road and Trail -
Reinstall the drain bolt (and new crush washer if available).–
Clean the bolt and install a new crush washer if you have one. Reinstall the drain bolt and tighten securely with your torque wrench (factory spec is usually around 15 ft-lbs, but check your manual for confirmation).
Source: Road and Trail, Partzilla -
Fill with new oil.–
Insert a funnel into the oil fill hole and pour in 1.22 quarts (or 1.2L) of 10W-40 motorcycle oil.
Model-Specific Note:– The correct oil amount is approximately 1.22 quarts. Overfilling or underfilling can harm engine performance -
Check for leaks.–
With the bike upright on level ground, wait a minute, then inspect around the drain bolt and filter cover for leaks. If no leaks, proceed. -
Check the oil level.–
Reinsert the dipstick fully (but do not screw it in), then remove and check the oil level. Add oil a little at a time if needed, repeating the check after each addition. Do not overfill.
Source: Partzilla -
Start the engine and re-check.–
Start and idle the engine for about 30 seconds. Shut it down, wait one minute, and check for leaks. Re-check the oil level and top off if necessary. Your oil change is now complete.
2019 Kawasaki KLX140G-Specific Call-Outs
- Oil Capacity:– 1.22 quarts with filter change. Stick with the manufacturer's specification to avoid engine issues.
- Dipstick:– Check oil level with the bike off, upright, and with the dipstick inserted but not screwed in.
- Drain Bolt Location:– Lower left side of the crankcase.
- Filter Orientation:– Double-check your filter install orientationincorrect installation may lead to engine damage.
- Crush Washer:– These are inexpensive and should ideally be replaced every oil change for leak prevention, but if unavailable, inspect and reuse the old one if it's undamaged.
Proper oil maintenance is the foundation of a long-lasting, reliable dirt bike. For the 2019 KLX140G, this oil change process is straightforward, empowers owners to care for their motorcycles, and ensures trail-ready performance every ride. Use top-tier parts and quality oil from MotoSport.com to guarantee the best results.
Ride Hard, Ride Smart.
Oil changes protect your investment—trust MotoSport.com for all your 2019 Kawasaki KLX140G parts, oils, and service needs.
Related Shopping Categories
Shop Motor Oil for a 2019 Kawasaki KLX140G Dirt Bike.
Shop Oil Filters for a 2019 Kawasaki KLX140G Dirt Bike.
Shop Oil Drain Pans for a 2019 Kawasaki KLX140G Dirt Bike.
Shop Tools for a 2019 Kawasaki KLX140G Dirt Bike.
Shop Oil Fillers and Drain Plugs for a 2019 Kawasaki KLX140G 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.