How to change the oil in a 2016 Kawasaki KX250F Dirt Bike

How to Change the Oil in a 2016 Kawasaki KX250F – MotoSport.com Guide

Shop parts for a 2016 Kawasaki KX250F Dirt Bike.

Regular oil changes are crucial for keeping your Kawasaki KX250F's high-performance engine running at its best. This how-to guide covers everything you need: from essential tools and supplies, to detailed step-by-step instructions, and special call-outs specific to the 2016 KX250F. Whether you're prepping for a race or just maintaining your ride, use this MotoSport.com exclusive to keep your bike in prime condition.

Tools and Supplies Needed

• Flathead screwdriver (for oil fill cap)
• 14mm socket wrench (main drain bolt)
• 10mm socket wrench or T-handle (secondary drain bolt & oil filter cover)
• Oil drain pan
• Funnel
• Replacement oil filter
• 1.3 quarts (approx. 1.2L) of 10W-40 motorcycle engine oil
• New crush washer (recommended)
• Clean rags
• Owner's manual (for reference)

Special 2016 KX250F-Specific Call-Outs

• The 2016 KX250F uses about 1.3 quarts (1.2L) of oil—double-check your manual for capacity.
• Warm up the engine to operating temperature before draining to help oil flow and suspension of contaminants.
• The oil fill cap is located on the top of the clutch cover (right side).
• Look for two drain plugs underneath; always remove both for a complete oil change.
• Always inspect and, if needed, replace the crush washer on the drain bolt to avoid leaks.
• Check the exact oil type on your clutch cover or in your manual; 10W-40 is standard, but synthetic options are approved.
• Don't overfill—use the sight glass on the clutch cover to confirm correct oil level.

Step-by-Step Instructions

1. Preparation:
   • Start the engine and let it idle for 2-3 minutes, then turn it off and let the bike rest on a level surface.
   • Clean around the drain plugs and oil filter cover to prevent debris from entering the engine.
2. Remove Oil Fill Cap:
   • Using a flathead screwdriver, unscrew and remove the oil fill cap on the right side clutch cover. This allows the engine to vent and drains smoothly [/strong>.
3. Drain Old Oil:
   • Set the drain pan under the engine.
   • Using a 14mm socket wrench, remove the main drain plug at the bottom of the engine.
   • Then, use a 10mm socket to loosen and remove the nearby secondary drain plug for a more thorough drain
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   • Allow oil to drain fully (several minutes). Inspect the oil for metallic flecks—excess may indicate engine wear.
   • Inspect the crush washer and replace it if it's damaged or deformed.
4. Reinstall Drain Plugs:
   • Once oil is completely drained, reinstall the crush washer(s) and both drain bolts. Torque to manufacturer's spec (usually 12-15 ft-lbs, but verify for your model)
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5. Replace Oil Filter:
   • Locate the oil filter cover on the lower right engine side.
   • Use a 10mm socket or T-handle to remove the two oil filter cover bolts.
   • Remove the cover and carefully pull out the used oil filter (a flathead may help if stuck).
   • Apply some fresh oil to the seal of your new filter. Insert the filter with the rubber grommet facing inward as per manual
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   • Spray inside with a little contact or brake cleaner (optional, but recommended—make sure everything is dry before closing)
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   • Reassemble the cover, ensuring the spring is properly seated, and torque the bolts to 9 ft-lbs
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6. Add New Oil:
   • Stand the bike upright (not on the side stand).
   • Place a funnel in the fill port. Pour in approximately 1.3 quarts (1.2L) of 10W-40 motorcycle oil.
   • Inspect the oil sight glass; the level should reach the upper mark but not above.
   • Reinstall the oil fill cap.
7. Final Check:
   • Start the engine and let it run for 1-2 minutes. Shut it off and wait 1-2 minutes for the oil to settle.
   • Check the oil level again. Add more oil if needed, but do not overfill.
   • Check for leaks at the drain plugs and filter cover.
   • Dispose of used oil and old filter at a proper recycling facility.