How to change the oil in a 2013 Yamaha YZ250F Dirt Bike

How to Change the Oil in a 2013 Yamaha YZ250F

Shop parts for a 2013 Yamaha YZ250F Dirt Bike.

Regular oil changes are vital to the performance and longevity of your 2013 Yamaha YZ250F. This proprietary MotoSport.com guide will walk you through the process step by step, including the tools you will need, specific model call-outs, and best practices to ensure a successful oil change.

Tools and Supplies You'll Need

Socket wrench set (with a 12mm socket for the drain bolt)
Oil pan for draining old oil
New engine oil (visit your owner's manual for the correct amount and grade; typically SAE 10W-30 or SAE 10W-40, JASO MA standard)
New oil filter (recommended)
Funnel for pouring new oil
Crush washer or drain bolt gasket (recommended for every change)
Shop towels or rags
Safety gloves
Owner's manual (for oil capacity and model-specific info)

Step-By-Step Oil Change Instructions

Warm Up the Engine
- Start the bike and let it idle for several minutes to warm up the oil, which allows for easier and more complete draining.
  Tip: Never attempt an oil change right after hard riding – let it cool enough to handle, but keep oil warm for proper flow.
  Important: Always work in a well-ventilated area.
Stabilize the Bike
- Position your YZ250F upright using a bike stand so the engine is level.
  This ensures accurate oil drainage and refilling.
Remove the Skid Plate (if equipped)
- If your 2013 YZ250F has a skid plate, remove it to access the drain bolt underneath the motor.
Drain the Old Oil
- Locate the 12mm drain bolt underneath the engine case.
  Place the oil pan beneath the bolt to catch draining oil.
- Slowly loosen and remove the drain bolt.
  Allow all oil to drain completely.
  Inspect the old crush washer (replace if damaged or squished).
Remove the Oil Filler Cap
- While oil is draining, remove the oil filler cap to vent the system.
  This helps oil drain faster by preventing vacuum buildup.
Replace the Oil Filter (Recommended)
- Locate the oil filter cover (usually on the right side of the engine).
- Remove the bolts securing the cover and gently remove the old oil filter.
  Pay attention to the orientation of the filter as you remove it.
- Clean the filter cover and mating surface. Replace the O-ring if it appears flattened or damaged.
  Lubricate the O-ring with fresh oil before installing.
- Install the new oil filter (matching the original orientation).
  Reinstall the filter cover and torque bolts to spec (refer to your service manual).
Reinstall the Drain Bolt
- After all oil has drained, reinstall the drain bolt with a new crush washer.
  Tighten with appropriate torque (consult your manual for exact value).
Add Fresh Oil
- Using a funnel, pour in the recommended quantity of engine oil for your 2013 YZ250F.
- Typical capacity is just over one quart (1.0–1.2 quarts) if changing the filter – but always verify your owner's manual for the exact amount.
  Overfilling may cause engine problems, so pour gradually and check the oil level frequently.
  Yamaha oil bottles often have clear volume markings for easy measuring.
Replace the Oil Filler Cap
- Ensure the cap is secure to prevent oil leaks or contaminants entering your engine.
Check the Oil Level
- Start the engine and let it idle for 2–3 minutes. Shut off the engine and wait one minute for the oil to settle.
- Using the sight glass on the right side, ensure the level is between the minimum and maximum lines – ideally about three-quarters full.
  Add small amounts of oil if needed to reach the correct level.
  Tip for 2013 YZ250F: The oil level must not be above the upper sight glass line or below the lower. Use the center stand or ensure the bike is upright when checking.
Final Check and Cleanup
- Wipe up any oil drips or spills using a shop towel.
  Check beneath the bike while running for leaks at the drain bolt and filter cover.
- Properly dispose of used oil and filter in accordance with local regulations.

2013 Yamaha YZ250F Model-Specific Notes

Oil Sight Glass: This model uses a sight glass for accurate oil measurement instead of a dipstick. Always check level with engine off and bike upright.
Drain Bolt Location: 12mm drain bolt is located underneath. Always use a new crush washer to avoid leaks.
Oil Strainer: Periodically clean the oil strainer screen located inside the engine when performing oil changes for optimal engine performance.
Correct Oil Type: Use high-quality, motorcycle-specific oil that meets JASO MA standards, as recommended by Yamaha.

Pro Tips for a Successful Oil Change

Warm oil drains faster and more completely, removing more contaminants.
Change the oil filter at every oil change for optimal protection.
Always torque bolts to factory specifications to avoid over-tightening or stripping threads.
Check the oil level after first short ride and top off if necessary.
Maintain a log of oil changes for accurate service intervals and warranty compliance.

With these steps, your 2013 Yamaha YZ250F will be ready for peak performance on and off the track. For OEM parts, filters, and oil designed specifically for your YZ250F, shop at MotoSport.com – your trusted source for dirt bike maintenance essentials.

Related Shopping Categories

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Shop Oil Fillers and Drain Plugs for a 2013 Yamaha YZ250F 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.

How to change the oil in a 2013 Yamaha YZ250F Dirt Bike