How to Change the Oil in a 2016 Kawasaki KX100: Expert Step-by-Step Guide
Shop parts for a 2016 Kawasaki KX100 Dirt Bike.
Changing the oil (technically, transmission oil) on your 2016 Kawasaki KX100 is a straightforward task, but critical for the longevity and smooth performance of your dirt bike. This robust guide, proprietary to MotoSport.com, will walk you through all the tools required, each precise step, and specific details unique to this model year so you can do the job with confidence.
Tools You’ll Need
- 14mm socket and ratchet (for the drain plug)
- Measuring cup (to measure exactly 700 milliliters of oil)
- Funnel (to avoid spills when refilling)
- Drain pan (to catch old oil)
- Shop towels or rags (for cleanup)
- Replacement crush washer for drain plug (recommended, optional)
- Torque wrench (optional but recommended)
Supplies
- 700 milliliters (ml) of quality 2-stroke transmission oil (such as 10W-40)
Important Model-Specific Callouts
- The 2016 KX100, like all KX100s, is a 2-stroke bike. The oil you are changing is for the transmission and clutch, NOT engine lubrication; engine lubrication comes from the pre-mix in your fuel.
- The oil fill amount is 700 ml. Overfilling or underfilling can cause clutch slip or wear.
- Be careful not to overtighten the drain bolt, which can easily strip the threads in the case, especially on a bike that sees frequent service.
- This model has a sight notch for checking oil level in the case.
Step-by-Step Oil Change Procedure
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Warm Up the Engine
- Start the KX100 and let it idle for about a minute. This allows the oil to warm up so it will drain more quickly and fully.
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Prepare Your Work Area
- Place your drain pan beneath the engine’s drain plug (bottom left side, under the engine).
- Gather all tools and supplies so they’re within reach.
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Remove the Drain Plug
- Using a 14mm socket, carefully loosen and remove the drain plug. Watch for the crush washer; be sure not to lose or damage it.
- Allow all the oil to drain out. Tilting the bike gently from side to side can help remove old oil residue.
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Inspect and Replace the Crush Washer
- Check the crush washer for wear. Replace if damaged or crushed to help prevent leaks.
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Reinstall the Drain Plug
- Reinstall the drain plug with its washer by hand first, then use the socket to tighten. Do not overtighten. Many recommend torquing the bolt to manufacturer specs to avoid stripping the aluminum threads.
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Measure and Add New Oil
- Measure exactly 700 milliliters of recommended transmission oil.
- Place a funnel in the oil fill opening and slowly pour in the oil.
- Replace the oil cap securely.
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Check the Oil Level
- With the bike standing upright and level (not on a side stand), check the oil level at the inspection notch behind the engine case. The level should just meet the notch. Add or remove oil if needed.
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Clean Up and Dispose of Used Oil Properly
- Wipe down any spilled oil. Take the used oil to a recycling center; do not pour it down the drain.
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Final Check
- Start the bike and let it idle. Check around the drain plug for leaks.
- Double-check the oil level after your first ride and adjust as necessary.
Pro Tips for KX100 Riders
- Changing the transmission oil every 5–10 hours of riding, or after every race, will help ensure consistent clutch feel and protect the gearbox.
- If the oil looks milky or gray, this can indicate water intrusion or clutch wear—inspect the gasket and seals.
- Always use the manufacturer-recommended type and amount of oil. Overfilling can cause frothing, while underfilling can lead to clutch and gearbox wear.
- If you strip the drain plug threads, consider using a thread repair kit (helicoil) to restore integrity.
Conclusion
With these steps and a basic toolset, you can change the transmission oil in your 2016 Kawasaki KX100 confidently and efficiently, keeping your bike running in peak condition for every ride. For more maintenance tips and top-quality parts, be sure to visit 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.