How to Change the Oil in a 2015 Husqvarna TE300: Step-by-Step Guide

Shop parts for a 2015 Husqvarna TE300 Dirt Bike.

Changing the oil in your 2015 Husqvarna TE300 is essential for keeping your two-stroke dirt bike’s transmission running smoothly and prolonging the life of internal components. This guide, exclusive to MotoSport.com, covers the entire oil change process—covering the tools you need, detailed step-by-step instructions, and call-outs specific to your make and model.

Tools and Supplies Needed

  • Socket wrench set (for removing and tightening drain and level bolts)
  • Torque wrench (for tightening bolts to factory specifications)
  • Drain pan (to catch old oil)
  • Funnel (for easy and clean refilling)
  • New transmission oil (15W-50 full synthetic is recommended by Husqvarna; capacity is approximately 800ml for the TE300)
  • Rags (for cleanup)
  • New crush washer for drain bolt (recommended for a leak-proof seal)
  • Gloves (for hand protection)
  • Small flat-head screwdriver (if needed, to help remove stubborn bolts with caution)

Preparation

  • Warm up your bike to operating temperature for a few minutes. Warm oil flows better and drains more thoroughly.
  • Turn off the engine and lean your bike upright on a stable stand or lift.

Step-by-Step Oil Change Process

  1. Locate the Oil Drain Plug:
    • The drain bolt is on the underside of the engine case on the TE300.
    • Place your drain pan directly underneath.
  2. Remove the Drain Bolt:
    • Using a socket wrench, carefully unscrew the drain bolt (beware: oil will be hot).
    • Allow all oil to fully drain into the pan. Tip the bike gently towards you–about 30 degrees–to ensure all the oil pools and drains completely.
    • Inspect the drain bolt and replace the crush washer if it is damaged or worn.
  3. Clean and Reinstall the Drain Bolt:
    • Wipe the bolt and surrounding area clean.
    • Thread the drain bolt back by hand to avoid cross-threading.
    • Use your torque wrench to tighten the bolt to the manufacturer's spec, which is approximately 11 ft-lbs for the drain bolt on the TE300.
  4. Remove the Oil Fill Plug and Oil Level Check Bolt:
    • Find the oil fill plug on the right side of the engine cover. Remove it with your socket or fingers.
    • Locate the oil level check bolt (small bolt partway up the clutch cover).
  5. Add New Oil:
    • Insert a funnel in the fill hole. Slowly pour in high-quality 15W-50 full synthetic gear oil (or 5W-40 as an alternative, but 15W-50 is recommended for warmer climates).
    • Husqvarna recommends filling to the oil level check hole, NOT overfilling. Pour until oil starts to trickle out the check hole–usually about 800ml.
    • Allow it to drip out to the correct level, then reinstall and snug up the oil level bolt (about 7 ft-lbs for the TE300).
    • Reinstall the fill plug snugly.
  6. Clean Up and Check for Leaks:
    • Wipe any spilled oil from the engine and frame.
    • Start the bike briefly and check for leaks around the drain, fill, and check bolts.

2015 Husqvarna TE300-Specific Oil Change Call-Outs

  • No oil filter: The TE300, as a two-stroke, does NOT use an oil filter for the gearbox oil–the piston, rings, and crank are lubricated by the oil/fuel premix.
  • Oil capacity accuracy: Fill until oil trickles from the level bolt, not a fixed amount–overfilling can cause gear/clutch drag, and underfilling risks gearbox wear.
  • Crush washer replacement: Always use a new or undamaged crush washer to prevent leaks from the drain bolt.
  • Use recommended oil: 15W-50 full synthetic is ideal; Mobil 1 5W-40 is a common alternative if your climate is cooler, but stick with 15W-50 for best results.
  • No oil filter service: Do not search for or attempt to change a non-existent oil filter; focus on gear oil only.

Final Tips

  • Change your TE300’s gearbox oil every 10-15 hours of riding, or sooner if riding in extreme conditions.
  • Recycle your used oil responsibly at an approved facility.
  • Record your maintenance in a log for resale value and engine longevity.

For OEM parts, gear, and more expert guides, shop MotoSport.com—your source for everything dirt bike.

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Shop Oil Fillers and Drain Plugs for a 2015 Husqvarna TE300 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.