How to Change the Oil in a 2013 Yamaha WR250R (DUAL SPORT): A MotoSport.com Proprietary Guide

Shop parts for a 2013 Yamaha WR250R Dirt Bike.

Routine oil changes are critical for the performance and longevity of your 2013 Yamaha WR250R dual sport. Below is a robust, step-by-step guide exclusive to MotoSport.com, ensuring that even first-time owners can tackle this fundamental maintenance job with confidence.

Tools and Supplies Needed

  • 3/8” Drive Ratchet
  • Socket Set (specifically 12mm for drain bolt, 8mm for oil filter cover bolts)
  • Torque Wrench (capable of 10 Nm and 20 Nm settings)
  • Oil Drain Pan
  • Replacement Oil Filter
  • Replacement Crush Washer (recommended, for drain bolt)
  • New Engine Oil (YAMALUBE 4, SAE 10W-30 or SAE 20W-40; many use 10W-40)
  • Funnel
  • Shop Towels or Rags
  • Pick Tool or Small Flathead Screwdriver (for O-ring)
  • Latex Gloves (optional, for cleanliness)
  • Bike Stand or Center Stand (to keep the bike vertical)

Step-by-Step Instructions

  1. Prep Your Workspace and Bike
    • Start with a clean bike to prevent contamination.
    • Run the engine for a few minutes to warm up the oil. Warm oil flows better and carries debris more effectively.
    • Place the motorcycle on a stand to keep it upright and stable.
  2. Drain the Old Oil
    • Locate the oil drain bolt underneath the engine. Place the oil drain pan below it.
    • Using a 12mm socket, carefully loosen and remove the drain bolt. Allow oil to fully drain.
    • Remove the oil fill cap on top to accelerate draining.
    • Replace the crush washer on the drain bolt if it shows any signs of deformation or wear.
  3. Remove and Replace Oil Filter
    • With the oil still draining, locate the oil filter cover (right side of the engine).
    • Remove the three 8mm bolts securing the cover. Be careful—some oil may spill during this step.
    • Set cover aside gently, taking care not to misplace the small O-ring on top.
    • Remove the old oil filter. Use a pick tool or small screwdriver to remove and inspect the O-ring–replace if it looks worn or damaged.
    • Insert the new oil filter (open end first, toward engine). Lightly oil the new O-ring before installing.
    • Reattach the cover, tightening the three bolts evenly in a crisscross pattern to 10 Nm torque.
  4. Replace the Drain Bolt
    • Once oil has finished draining, reinstall the drain bolt with the new or inspected crush washer.
    • Tighten the bolt to 20 Nm torque–do not over-tighten, as this can strip the threads.
  5. Add Fresh Oil
    • Using a funnel, pour in 1.4 liters of the recommended oil if you changed the filter (1.3 liters if not replacing the filter).
    • Replace and tighten the oil fill cap.
  6. Check Oil Level
    • Start the bike and let it idle for about 30 seconds, then shut it off and let it sit for a moment.
    • With the bike upright, locate the oil sight glass on the right side of the engine.
    • The oil level should be between the upper and lower marks–not above or below.
    • Top up if necessary, rechecking after each addition.
  7. Final Steps
    • Check for leaks around the drain bolt and oil filter cover.
    • Reinstall any removed parts, such as bash plates or skid plates.
    • Dispose of used oil and filter properly at a recycling center.

2013 Yamaha WR250R Model-Specific Tips and Call-Outs

  • Oil Change Interval: Yamaha recommends changing engine oil every 3,000 miles and the oil filter every 6,000 miles. Many owners prefer to change both with each oil change for convenience and extra protection.
  • Oil Capacity: 1.3L (oil only), 1.4L (with filter)
  • Tightening Torques: Drain bolt: 20 Nm; Oil filter bolts: 10 Nm.
  • Crush Washer: Replace the crush washer on the drain bolt every time to avoid leaks.
  • Sight Glass Monitoring: The sight glass check requires the bike to be level and upright. Overfilling is as problematic as underfilling–never go above the upper line.

Common Mistakes to Avoid

  • Do not overtighten the drain bolt or filter cover bolts–thread damage is costly to repair.
  • Always double-check for the O-ring’s correct placement and condition to prevent leaks.
  • Dispose of old oil and filter responsibly; never dump used oil on the ground or in the trash.

Conclusion

  • Changing the oil on your 2013 Yamaha WR250R is a straightforward process if you follow each step and torque specification.
  • This critical maintenance extends your engine’s life and ensures optimum performance on and off the trail.
  • Stick to Yamaha’s recommended intervals and oil types for best results.

Make sure to visit MotoSport.com for genuine Yamaha parts, filters, oils, and all the tools you’ll need to keep your WR250R running strong.

<.-- Sources: -->

Related Shopping Categories

Shop Motor Oil for a 2013 Yamaha WR250R Dirt Bike.

Shop Oil Filters for a 2013 Yamaha WR250R Dirt Bike.

Shop Oil Drain Pans for a 2013 Yamaha WR250R Dirt Bike.

Shop Tools for a 2013 Yamaha WR250R Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2013 Yamaha WR250R Dirt Bike.

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.