How to Change the Oil in a 2022 Husqvarna TX300i: Step-by-Step Guide

Shop parts for a 2022 Husqvarna TX300i Dirt Bike.

Changing the oil in your 2022 Husqvarna TX300i is straightforward and essential for keeping your transmission running smoothly for trail rides, race days, and beyond. While it's a relatively simple task, there are specific tools and details unique to the TX300i you should be aware of to achieve the best results and avoid messes. This blog, proprietary to MotoSport.com, will walk you through the entire process.

Tools and Supplies Needed

  • Ratchet
  • 3-inch extension
  • 13mm socket
  • 8mm socket or T30 Torx
  • Torque wrench (recommended, but not required if you know proper hand torque)
  • Oil drain pan
  • Funnel or Drifters Oil Change Moto Funnel (helps direct oil cleanly into the pan)
  • Gear oil (refer to your owner's manual for recommended type and quantity; most TX300i models use 75W light gear oil, approximately 800ml)
  • Replacement crush washer (recommended)
  • Shop rags
  • Gloves (optional but highly recommended)

Model-Specific Call-Outs – 2022 Husqvarna TX300i

  • The TX300i, like most 300cc Husqvarna/KTM two-strokes, uses a side case drain plug located under the shift lever on the left side of the engine.
  • If you've installed an aftermarket skid plate, you'll need to remove it or use a purpose-built funnel to avoid a mess (the Drifters Moto Funnel is a popular choice).
  • The recommended service interval is 5 hours for the first change, then every 40 hours thereafter, or sooner depending on use.

Step-By-Step Instructions

1. Prep the Bike

  • Warm Up the Engine: Start your TX300i and let it idle for 3–5 minutes to bring the oil to operating temperature. This helps suspend contaminants and ensures a more complete drain.
  • Secure the Bike: Place the bike on a stable stand, shut off the engine, and ensure it's cool and stable before proceeding.

2. Remove the Skid Plate (If Installed)

  • If you have a skid plate, either remove it using the manufacturer's instructions or use a specialty funnel that allows oil to bypass the skid plate.

3. Drain the Oil

  • Place the drain pan directly beneath the oil drain plug (on the left side, under the shift lever).
  • Using the 13mm socket and extension, loosen and remove the drain bolt. Be careful as oil may start to flow immediately.
  • Allow the oil to drain completely (wait at least a few minutes for the best results).
  • On the right side of the bike, remove the oil fill cap (using 8mm socket or T30 Torx, as needed) to speed draining.

4. Check and Clean

  • Inspect the drain plug and crush washer. Replace the washer with a new one if it's damaged or flattened.
  • Clean the drain plug, filling surfaces, and any spilled oil with shop rags.
  • Look inside the oil for signs of metal shavings, which could indicate internal wear.

5. Reinstall the Drain Plug

  • Thread the drain plug back in by hand to avoid cross-threading, then tighten with a torque wrench to specification (typically 12 Nm or 9 ft-lbs; check your service manual).

6. Refill with Fresh Gear Oil

  • Pour the recommended type and quantity of oil (usually 800ml of 75W light gear oil) into the fill port on the right side.
  • Use a funnel for accuracy and to prevent spills.
  • Reinstall the oil filler cap and tighten securely.

7. Check for Leaks

  • Start the bike and let it idle for a couple of minutes.
  • With the bike level, inspect around the drain bolt and oil fill cap for leaks. Shut off the bike and check the oil level; top off if necessary.

Additional Pro Tips

  • Dispose of Used Oil Responsibly: Pour old oil into a sealed container and take it to a recycling or hazardous waste disposal center.
  • Keep a Maintenance Log: Record the hours and date of each oil change for your records and resale value.
  • Always Use Quality Gear Oil: Stick with what Husqvarna recommends to maintain clutch feel, gear life, and engine performance.

Summary for the 2022 TX300i

  • Changing the oil is straightforward and, with a few hand tools and the right oil, can be completed in under 30 minutes.
  • Pay special attention to the drain plug location, crush washer condition, and service intervals specific to the TX300i.

With this guide, you can confidently keep your 2022 Husqvarna TX300i's transmission healthy and running at its best. For all your gear, oil, and parts needs, MotoSport.com has you covered.

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Shop Tools for a 2022 Husqvarna TX300i Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2022 Husqvarna TX300i 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.