How to Change the Oil in a 2023 Husqvarna TE300i

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Keeping your Husqvarna TE300i running at its best means changing the transmission (gearbox) oil regularly. This step-by-step guide, exclusive to MotoSport.com, covers everything you need: tools, oil type, detailed steps, and specific call-outs for your 2023 TE300i.

Tools and Materials Needed

  • 15mm and 13mm socket or wrench
  • Ratchet wrench and extension (if needed)
  • Torque wrench (capable of 8 Nm/5.9 lbf ft and 20 Nm/14.8 lbf ft)
  • Oil drain pan
  • New crush washer/seal ring (for drain plug)
  • Clean rags or paper towels
  • Funnel
  • Fresh gear oil: Full synthetic 15W/50 motorcycle oil (0.8 liters or 0.8 quarts for this model)
  • Gloves (optional)

Model-Specific Call-Outs for 2023 Husqvarna TE300i

  • Use 0.8 liters (0.8 qt.) of 15W/50 full synthetic gear oil, which is manufacturer recommended for 2023 TE300i models.
  • Filler plug and drain plug torque:
    • Drain plug (M12x1.5): 20 Nm (14.8 lbf ft)
    • Level monitoring screw (M6): 8 Nm (5.9 lbf ft)
  • Always use a new seal ring with the drain plug to avoid leaks.
  • Check that a small amount of oil seeps out the level hole when filling. This confirms correct oil level.
  • The TE300i is a two-stroke with separate transmission oil—never confuse with oil injection systems for pre-mix.

Step-by-Step Instructions

  1. Warm up the engine:
    • Start and idle the bike for a few minutes. This helps the oil drain more easily, carrying away contaminants.
  2. Park securely on a level surface:
    • Use a bike stand or the kickstand if needed, but ensure the bike is upright to check oil level accurately.
  3. Prepare for draining:
    • Place an oil drain pan directly below the drain plug under the engine case.
  4. Remove the oil fill plug:
    • Unscrew the filler plug on the right side of the crankcase. This allows oil to drain more smoothly.
  5. Remove the gear oil drain plug:
    • Use your 13mm or 15mm socket to remove the drain plug underneath the engine.
    • Let the oil completely drain into the pan. It can take a few minutes for it to stop dripping.
  6. Clean the drain plug and inspect:
    • The drain plug contains a magnet. Wipe off metal particles. Small shavings are normal, but chunks indicate transmission problems.
    • Install a new crush washer onto the plug.
  7. Reinstall and torque the drain plug:
    • Screw the drain plug back in by hand to avoid cross-threading. Then snug it with a wrench and torque it to 20 Nm (14.8 lbf ft).
  8. Remove the oil level check screw (on the right side of engine):
    • This step ensures proper fill. Oil should just begin to flow from this hole when full.
  9. Add new oil:
    • Using a funnel, slowly pour in 0.8 liters of 15W/50 full synthetic oil into the fill port.
    • Wait until oil starts to run out of the check hole, then stop.
    • If no oil leaks out, add a little more until it just begins to seep out of the level hole.
  10. Reinstall and torque the oil level screw:
    • Fit a new O-ring or copper washer if required.
    • Tighten to 8 Nm (5.9 lbf ft).
  11. Reinstall the fill plug:
    • Screw it back in snugly, torque as per manual or by feel, avoiding over-tightening due to soft case threads.
  12. Clean up and dispose of old oil responsibly:
    • Wipe off any spilled oil, check for drips, and properly recycle the used oil at an approved collection site.
  13. Start the bike and check for leaks:
    • Run briefly, stop, and inspect drain and fill plugs for any signs of oil leakage.

Helpful Tips for 2023 Husqvarna TE300i Owners

  • Always use high-quality, full synthetic 15W/50 oil for long gear life and smooth shifting.
  • Tighten plugs with a torque wrench, especially on the aluminum case, to avoid stripping threads.
  • Service interval: Change the gearbox oil after the first few rides, then every 10–15 hours for severe use, or as specified in your service manual.

By following these steps and using the right oil and torque settings, you'll extend your TE300i's life and ensure top performance. For quality parts and tools, shop exclusively at MotoSport.com.

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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.