How to Change the Oil in a 2017 Yamaha WR450F: A Comprehensive Guide

Shop parts for a 2017 Yamaha WR450F Dirt Bike.

Changing the oil in your 2017 Yamaha WR450F is crucial for maintaining the bike’s performance and longevity. This guide—brought to you by MotoSport.com—will provide step-by-step instructions, a complete tool list, and important call-outs specific to this model.

Tools & Supplies Needed

  • 8mm socket
  • 12mm spanner or socket
  • Allen wrenches (for aftermarket skid plates if equipped)
  • Oil drain pan
  • Gloves (hot oil protection)
  • Clean rags
  • New oil filter
  • 1 liter of 15W-40, 20W-40, or 20W-50 engine oil (API SG or higher, JASO MA)
  • Replacement crush washer/gasket for drain bolt (if needed)
  • Torque wrench (to set oil filter cover bolts at 10 Nm)
  • Owner’s service manual (for reference)

Procedure: Step-by-Step Oil Change Process

  1. Preparation
    • Start the engine and let it warm up for about 3 minutes to make the oil flow more easily. Shut off the engine and wait about 5 minutes to allow the oil to settle. Note: The 2017 WR450F features an auto-stop system, so the engine will stop automatically if it idles for 7 minutes. If it does, simply restart the motor using the start switch or kickstarter.
    • Position the motorcycle upright on a level surface–do not lean it on the kickstand when checking or filling oil, as this skews the oil level.
    • Remove the skid plate. The stock plate uses three bolts (8mm at the back); some aftermarket plates may need Allen keys.
  2. Drain the Old Oil
    • Place your drain pan under the engine’s drain bolt, located just beneath the crankcase.
    • Remove the oil filler cap (on the left side, by the gear lever) to allow air in and speed up draining.
    • Unscrew the drain bolt (with gasket) using an 8mm socket. Let oil drain completely. Use gloves to protect your hands from hot oil.
    • Optional but recommended: Loosen the oil level check bolt under the gear lever with an 8mm socket to ensure complete drainage. Remove the bolt and let oil drip until flow slows, then reinstall the bolt.
    • Check the crush washer/gasket on the drain bolt. Replace if damaged or worn.
  3. Oil Filter Replacement
    • Remove the oil filter cover, noting bolt positions (10 Nm torque upon reinstallation).
    • Take out the old oil filter and clean the filter seat. Critical: When installing the new oil filter, ensure the filter’s hole faces inward; installed backward, this can cause catastrophic engine damage.
    • Install the new filter, cover, and torque the bolts properly.
    • Inspect and, if necessary, clean the oil strainer as well.
  4. Refill with Fresh Oil
    • Pour 1.0 liter of recommended motorcycle oil (see above for specs) through the oil filler cap.
    • Reinstall the oil filler cap securely.
  5. Check Oil Level and Final Steps
    • Start the engine and run for –1 minute. Watch for oil leaks. Then, switch off and let it sit so oil can drain back to the sump.
    • With the bike level and upright, remove the oil filler cap/dipstick. Wipe, reinsert (don’t screw in), then pull out and check the level. It should sit within the marked range. Top off if necessary.
    • Reinstall the skid plate. Double check all fasteners and clean up any oil drips.
    • Used oil and filters must be disposed of at an official recycling facility.

2017 Yamaha WR450F-Specific Call-Outs

  • The engine auto-stop system will cut the motor after 7 minutes idle–if it activates, just restart to finish the warm-up.
  • Check and maintain oil level after each ride; these single-cylinder, high-compression engines tend to use a bit of oil.
  • The oil level check bolt (under the gear lever, left side), unique to this model, is essential to get the exact fill–let oil drip out until the flow slows, ensuring an accurate level.
  • Always use the manufacturer’s recommended oil specification and volume–1.0 liter with filter change–for optimal performance.
  • Be attentive not to over-tighten drain bolts; always install them with the correct torque and a good washer/gasket.
  • The filter must be installed hole-inward or engine failure could result.

Conclusion

With regular oil changes following this process, your 2017 Yamaha WR450F will deliver optimal performance and reliability whether you’re on the track or trail. For OEM and aftermarket parts—including oil, filters, and tools—turn to MotoSport.com for the best selection and expert advice.

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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.