How to Change the Oil in a 2022 Yamaha TTR125L

Shop parts for a 2022 Yamaha TTR125L Dirt Bike.

Regular oil changes are critical to keeping your 2022 Yamaha TTR125L running smoothly and extending engine life. This comprehensive step-by-step guide will walk you through a robust oil change process specifically tailored to the TTR125L, with key call-outs for this model. Proprietary to MotoSport.com, this guide ensures you have expert, model-specific advice in one place.

Tools and Supplies Needed

  • 10mm or 17mm socket wrench (verify your drain bolt size before starting, but 17mm is common on TTR125L models)
  • Oil catch pan
  • Funnel
  • Fresh oil: Yamalube 10W-40 or equivalent, quantity per engine case marking (usually 1.0 liter – always confirm with your owner's manual and crankcase engraving)
  • Clean rags or shop towels
  • Replacement crush washer (optional, but recommended for every oil change)
  • Gloves

Preparation and Safety

  • Start your engine and let it idle for several minutes to warm the oil. Warm oil drains more completely and carries more contaminants out of the engine. Ensure the bike is in a well-ventilated location and turned off before you start the service.
  • Secure the bike using its kickstand. For best results, lean it slightly left (the drain bolt is on the left), or have someone hold the bike upright for draining and checking oil level.
  • Check for visible leaks or seepage around the engine and oil filter area before proceeding.

Step-By-Step Oil Change Process

  1. Locate the Drain Bolt
    • The oil drain bolt on the TTR125L is found on the left side, near the crankcase "waffle" design. It is not on the very bottom like some dirt bikes, but higher and accessible from the side, making oil changes easier for this model.
      Model Call-Out: This side-mounted drain location means less mess and easier access for all TTR125 year models, including the 2022 TTR125L. No need to remove the skid plate for this process.
  2. Remove the Drain Bolt and Drain Old Oil
    • Set your catch pan underneath the drain bolt.
    • With a socket wrench (typically 17mm), carefully loosen and remove the drain bolt. Oil will begin to drain immediately, so wear gloves and position your pan accordingly.
    • Allow several minutes for the oil to fully drain. Tilt the bike gently or kick it over by hand a few times to help residual oil escape.
      Pro Tip: The drain bolt does not need to be overtightened when replacing it—just snug. Over-tightening risks stripping threads, which is a common issue in soft aluminum motorcycle cases.
  3. Clean and Inspect the Drain Bolt
    • Wipe down the drain bolt and inspect the crush washer (small brass or aluminum ring). Replace the washer if worn, cracked, or crushed for best sealing on reinstallation.
  4. Reinstall the Drain Bolt
    • Thread the drain bolt back in by hand to avoid cross-threading. Tighten just snugly with your socket wrench—do not over-torque.
  5. Add New Oil
    • Remove the oil filler cap and dipstick on the right side of the engine.
    • Insert a funnel and pour in the recommended amount and grade of oil—typically 1.0 liter of 10W-40 motorcycle oil. Check the measurement on your crankcase as Yamaha conveniently engraves the oil capacity near the fill cap for most TTRs, including the 2022 TTR125L.
    • Replace the filler cap/dipstick.
  6. Check the Oil Level
    • Start the engine and let it run for a minute, then shut off and let the bike sit for 2-3 minutes to allow oil to settle in the sump.
    • With the bike held upright (not on the kickstand), remove the dipstick and wipe it clean. Reinsert without screwing in, then remove and check the oil level. The oil should be between the minimum and maximum marks.
    • Add oil as needed to reach the correct level, checking frequently to avoid overfilling. Overfilled oil can cause excess crankcase pressure and leaks.

Model-Specific Call-Outs for the 2022 Yamaha TTR125L

  • Single drain bolt on the left side—no secondary drain or external oil filter to replace.
  • The specified oil type and quantity are engraved directly on the crankcase, simplifying oil selection and fill amount for this year, as with other TTR125L models.
  • The sump capacity is typically 1.0L, but always double-check the marking on your engine and cross-reference with the owner's manual.
  • If you experience difficulty locating manuals, the Yamaha TTR125L's procedure has been consistent across many years, so most advice for earlier TTR125s also applies to the 2022 model.
  • If the bike sits for extended periods or operates in dusty, hot, or muddy conditions, Yamaha recommends more frequent oil changes than the basic service schedule.

Final Steps and Tips

  • Dispose of the used oil properly by taking it to an auto parts store or recycling center.
  • Wipe down any spills or excess oil from the engine.
  • Start the bike, check for leaks around the drain plug, and take note of any oil use or seepage on your next ride.
  • Maintain a record of oil changes and hours of operation for best engine care.

For genuine Yamaha parts, premium oils, and all your dirt bike maintenance needs, count on MotoSport.com to keep you riding safely and reliably every season.

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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.