How to change the oil in a 2020 Husqvarna TE250i Dirt Bike

How to Change the Oil in a 2020 Husqvarna TE250i – MotoSport.com Guide

Shop parts for a 2020 Husqvarna TE250i Dirt Bike.

Keeping your 2020 Husqvarna TE250i in top running condition means regularly changing its gear oil. This robust how-to guide provides everything you need: all the tools, clear step-by-step instructions, and tips specifically for the 2020 TE250i. Follow these detailed steps to make your oil change seamless and keep your bike’s transmission running smooth for countless rides.

Tools & Supplies Needed

• New gear oil (as recommended in your owner’s manual, typically high-quality synthetic 2-stroke gearbox oil)
• Drain pan for used oil
• Ratchet with extension
• Socket set (commonly 13mm or 1/2-inch for drain plug)
• Torque wrench
• Funnel (a flexible or angled funnel helps avoid spills)
• Shop rags and contact cleaner for cleanup
• Replacement crush washer for the drain bolt (if needed)
• Measuring cup
• Gloves (optional but recommended for cleanliness)

Important Call-Outs for the 2020 TE250i

• The 2020 TE250i is a 2-stroke fuel-injected enduro bike, so you’re changing the gearbox (transmission) oil, not engine oil as in 4-strokes.
• Oil capacity: Approximately 0.80–0.85 liters (about 27–29 US ounces). Always verify with your owner’s manual for precise fill amounts and specifications.
• Oil check screw: This model features an “oil level” screw on the right engine side. The oil is full when it just seeps out of this hole.
• Skid plate/guard removal: The plastic/skid plate or dirt guard slightly blocks access to the drain plug. Removing two screws lets it swing down for easier access.

Step-by-Step Oil Change Instructions

• Warm Up Your Bike
  Start your TE250i and let it idle for 2–3 minutes. This thins the oil, allowing it to drain better and carry away more sediment.
• Stabilize & Prepare
  Shut off the bike and place it on a stand or level ground. Ensure the bike is stable and vertical for accurate draining and refilling.
• Remove the Skid Plate/Guard
  Use a socket or Allen key to unscrew the two bolts holding the lower plastic guard. Let the guard swing down to reveal the drain bolt beneath the engine.
  Tip: The drain bolt is located under the engine, accessible from the right side.
• Drain the Old Oil
  Position your drain pan under the drain plug.
  Use the appropriate socket and extension to remove the drain bolt.
  Warning: The oil may be hot. Let it drain completely.
  Remove and set aside the old crush washer. Inspect and replace if damaged.
• Clean the Plug and Area
  Thoroughly clean the drain bolt, especially the magnetic tip. Remove metal particles if present. Wipe clean the mating surface of the case.
  Optional: Spray contact cleaner to remove residual oil, then dry.
• Reinstall the Drain Plug
  Install a new crush washer if needed.
  Thread the drain bolt by hand to start, then tighten with a torque wrench to manufacturer’s spec (consult manual; typically 10–15 Nm).
  Do not overtighten.
• Refill With Fresh Oil
  Remove the fill cap (right side of case, typically marked “OIL”) and insert a funnel. Pour in new gearbox oil up to factory-specified capacity.
  Tip: For the 2020 TE250i, begin with about 0.80 liters. It’s better to add gradually and avoid overfilling.
• Check & Adjust Oil Level
  Remove the oil check screw (marked “OIL” or level plug) on the right engine cover.
  The oil level is correct when oil just begins to seep out of this opening. If not, add small amounts until oil seeps out. If excess pours out, allow to drain until it slows to a weep.
  Reinstall and snug the check screw.
• Reinstall the Skid Plate/Guard
  Swing the guard back up and reinstall the two screws. Tighten snugly but do not overtighten.
• Cleanup & Check for Leaks
  Wipe away any spilled oil from the case and plug area. Start the engine, let it idle a minute, then shut off again and inspect for leaks—especially around the drain bolt and oil check screw.
• Dispose of Old Oil Properly
  Pour used oil into a sealed container and recycle at a designated facility.

Model Year and Make Specifics

• 2020 TE250i matches other 2018–2024 TE250i 2-stroke models for oil fill method and capacity. Always use the oil level screw for best accuracy.
• KTM and GASGAS 250/300/350 2-stroke models share a similar engine case, process, and torque specs; steps above apply with minor year-specific bolt size or capacity variance.
• Do not attempt to fill by measurement alone—always confirm with the oil level screw to prevent over/underfilling.

Maintenance Tips

• Change your gearbox oil every 10–15 hours for hard or muddy riding, or per manufacturer’s interval for lighter use.
• Always use premium quality 2-stroke gear oil for better shifting and clutch life.
• Inspect oil color and consistency. Milky oil may indicate water ingress; metallic particles suggest clutch or gear wear.
• If unsure about torque values or procedures, reference your official TE250i owner’s manual or contact MotoSport.com’s tech support.

Routine gear oil changes are one of the best ways to extend the life and reliability of your 2020 Husqvarna TE250i. By following this comprehensive step-by-step guide from MotoSport.com, even new owners can confidently perform this essential maintenance task — and stay ready for the next great ride.

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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.