How to Change the Oil in a 2017 Yamaha YZ450F: The Complete MotoSport.com Guide

Shop parts for a 2017 Yamaha YZ450F Dirt Bike.

Regularly changing the oil in your 2017 Yamaha YZ450F is essential for optimal performance and engine longevity. This step-by-step guide will help you accomplish the job with confidence and highlight any model-specific tips every YZ450F owner needs to know.

Tools & Supplies Needed

  • Socket wrench set (including 12mm for drain bolt)
  • Drain pan
  • Funnel
  • Clean rags or shop towels
  • Oil filter: HF 140 (recommended for 2017 model)
  • Replacement oil: BelRay EXS 10W50 or equivalent (0.7L required)
  • Oil filter cover O-ring (replace if worn or damaged)
  • New crush washer for drain bolt (recommended per oil change)
  • Screwdriver (to remove skid plate if equipped)
  • Gloves and safety glasses

Model-Specific Call-Outs for 2017 YZ450F

  • Oil filter: Use HF 140. Confirm compatibility before installation for best fit and filtration.
  • Oil capacity: 0.7 liters. Overfilling may lead to excessive engine pressure and leaks. Underfilling can cause premature wear and overheating.
  • Skid plate: Remove if installed for better access to drain bolt. Usually requires removing three bolts.
  • Drain bolt – location: 12mm head, located under engine; make sure to remove and replace crush washer with every change.
  • Start the bike and warm up: Always warm the engine for several minutes before draining the oil to make the process more effective.

Step-by-Step Instructions

  1. Warm Up the Engine
    • Start the YZ450F and let it idle for 2–3 minutes in a well-ventilated area. This will help the oil flow out smoothly when draining.
    • Shut the engine off and let the bike cool for a minute to avoid burns.
  2. Remove Skid Plate (If Equipped)
    • Use a socket wrench or screwdriver to remove the skid plate for access to the drain bolt. Keep track of mounting bolts.
  3. Remove Oil Filler Cap
    • The filler cap (on the right side of the cylinder head cover) should be removed. This step helps oil drain faster and more completely.
  4. Drain the Oil
    • Place the drain pan under the engine.
    • Using a 12mm socket, remove the oil drain bolt and crush washer. Allow oil to drain completely—stand the bike upright periodically to ensure all oil is out.
    • Inspect and replace the crush washer.
    • Clean and reinstall the drain bolt snugly, but do not overtighten (always follow torque specs provided in your service manual).
  5. Remove and Replace the Oil Filter
    • The oil filter is located behind a small cover on the right side of the engine.
    • Remove the filter cover bolts and carefully pull off the cover.
    • Remove the old filter (noting which side faces out) and discard the old O-ring if it is worn or flattened.
    • Wipe the filter cavity clean with a rag or shop towel.
    • Install the new HF 140 filter, ensuring proper direction.
    • Lightly coat the new O-ring with fresh oil before installing.
    • Reinstall the cover and its bolts, tightening them evenly—do not overtighten.
  6. Refill with Fresh Oil
    • With your funnel, pour in exactly 0.7 liters of fresh 10W50 oil (Yamalube or BelRay EXS 10W50 recommended).
    • Replace the oil filler cap and ensure it’s snug.
    • Start the engine and let it idle for 30–45 seconds while checking for leaks around the drain bolt and filter cover.
    • Shut off the engine and wait 1–2 minutes for the oil to settle.
  7. Check Oil Level
    • Remove the dipstick (or use the oil level inspection port if equipped) and verify that oil is within the recommended range.
    • Add small amounts if necessary to reach the correct level. Avoid overfilling.
  8. Reinstall Skid Plate
    • If you removed the skid plate, reinstall it securely using the original bolts.
  9. Dispose of Used Oil Responsibly
    • Pour old oil into a sealed container and take it to a recycling center or auto parts store that accepts used oil.

Key Tips for a Perfect YZ450F Oil Change

  • Always use the correct grade and amount of oil.
  • Replace crush washers at every change to avoid leaks.
  • Inspect oil for metallic particles or milky appearance; both can signal engine or coolant issues.
  • Check the service manual for exact torque specs and additional guidance specific to your bike.
  • Record the date and hours on the bike every time you change the oil to ensure regular maintenance intervals.

MotoSport.com Recommendation

Regular oil and filter changes are the simplest and most cost-effective ways to keep your 2017 Yamaha YZ450F running at peak performance. Use high-quality products and follow best practices for cleaning, inspecting, and disposing of oil. Always double-check your work and enjoy the trails or track with confidence.

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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.