How to Change the Oil in a 2013 Yamaha YZ450F

Shop parts for a 2013 Yamaha YZ450F Dirt Bike.

Changing the oil regularly on your 2013 Yamaha YZ450F is crucial for engine longevity and peak performance. This step-by-step guide, brought to you by MotoSport.com, is tailored for your motocross machine. Follow these detailed instructions to ensure you maintain your YZ450F like a pro and avoid costly repairs down the road.

Tools & Supplies Needed

  • Socket wrench set (with 12mm and 8mm sockets)
  • Oil drain pan
  • Funnel
  • New engine oil (refer to your manual, but typically 10W-40 JASO MA-rated oil)
  • New oil filter (Yamaha OEM or equivalent)
  • New crush washers/gaskets (recommended for drain bolts)
  • Rubber gloves and clean rags
  • Safety glasses
  • (Optional) Tusk oil change kit for included filter, gasket, and drain plug
  • Kerosene or specialty cleaner (for oil filter screen)

Specific Call-Outs for the 2013 Yamaha YZ450F

  • Dual drain bolts–The YZ450F has two drain bolts—one for the crankcase, one for the oil tank. Both must be removed for a complete oil change.
  • Oil filter orientation–Ensure the oil filter's rubber nipple seats into the engine correctly when reinstalling.
  • Oil filter screen–Clean with kerosene if necessary and inspect for debris.
  • Check washer condition–Replace drain bolt gaskets to minimize leaks after the change.

Step-by-Step Oil Change Instructions

  1. Warm up your engine
    • Start your YZ450F and let it idle for 2-3 minutes. This helps oil drain thoroughly.
    • Turn off the engine and place your bike on a stable stand.
  2. Remove skid plate (if installed)
    • Use the socket wrench to remove the bolts and set the skid plate aside.
  3. Position drain pan
    • Place the oil pan beneath the engine to catch used oil.
  4. Remove drain bolts
    • Locate the crankcase drain bolt and the oil tank drain bolt (usually 12mm and 8mm, respectively)

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    • Remove the crankcase bolt first, then the oil tank bolt, allowing oil to drain completely from both locations. Watch for the crush washers–remove and replace if they look worn.
  5. Remove the oil filter cover
    • Use the socket wrench to remove the two bolts securing the oil filter cover on the right side of your engine

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    • Pull off the cover and extract the old filter. Take note of its orientation–there's a rubber nipple side and a flat metal side. The nipple side faces inward, seating against the engine.
  6. Clean or replace oil filter screen (if equipped)
    • Located behind the oil filter, this metal mesh should be gently cleaned with kerosene if dirty. Let dry and replace carefully.
  7. Install new oil filter
    • Insert the new filter in the correct orientation. Reinstall the cover and torque bolts to the specification listed in your manual. Do not overtighten.
  8. Replace washers/gaskets
    • Install new crush washers on both drain bolts before threading them back in by hand to avoid cross-threading.
    • Tighten the drain bolts to the specified torque found in your manual

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  9. Add new engine oil
    • Remove the oil filler cap.
    • Pour in the recommended amount (refer to your manual; for the 2013 YZ450F, it's typically about 1.0L with filter change).
  10. Check oil level
    • Insert the dipstick or observe the sight window (consult your model's manual for exact method)

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    • Start the bike and let it idle for a couple of minutes, then shut off and check for leaks.
    • Re-check the oil level and top off if necessary. Oil level should be between the upper and lower marks on the dipstick but not overfilled

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  11. Reinstall skid plate
    • Secure it back under the engine if removed.
  12. Dispose of oil and filter properly
    • Take used oil and filters to a recycling center or authorized disposal site.

Quick Tips for YZ450F Owners

  • Always use the correct oil type and quantity–refer to your owner's manual for 2013-specific recommendations.
  • Check that both crush washers are in good condition every oil change.
  • Inspect the drained oil for metal shavings as a precaution against internal engine issues.
  • If you notice leaks after reassembly, do not overtighten bolts; consider replacing washers if the problem persists.

Consistent oil changes will keep your 2013 Yamaha YZ450F running strong and ready for the track or trail every time.

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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.