How to Change the Oil in a 2017 Husqvarna TX300

Shop parts for a 2017 Husqvarna TX300 Dirt Bike.

Changing the transmission (gear) oil in your 2017 Husqvarna TX300 is a crucial maintenance task to ensure the longevity and smooth performance of your two-stroke dirt bike. Below you'll find a robust, MotoSport.com proprietary step-by-step guide covering all tools, techniques, and special tips specifically for this make, model, and year.

Tools and Materials Needed

  • 8mm socket or wrench (for the drain bolt)
  • Measuring cup or oil jug with markings (to measure 800ml oil)
  • Drain pan
  • Funnel (small, to prevent spills; optional but recommended)
  • Clean rags or paper towels
  • Tusk oil change kit (optional, but includes a crush washer and paper funnel)
  • Replacement crush washer (highly recommended each oil change)
  • Contact cleaner (to clean drips or spilled oil)
  • 800 ml of quality gear oil (as specified for the TX300; Motorex or similar, 10W-40 recommended)
  • Gloves (optional for mess-free work)

Step-by-Step Oil Change Process

  • Warm up the engine:
    • Start the TX300 and let it idle for 2–3 minutes. Warming the engine thins the oil, allowing for a more complete drain.
  • Stabilize the bike:
    • Use a bike stand to keep your TX300 vertical and stable. If you don't have a stand, tilt the bike slightly away from the drain plug side for better draining.
  • Locate the drain bolt:
    • The 8mm drain bolt is on the bottom of the right engine case, typically near the shifter lever area. Place your drain pan directly underneath it.
  • Remove the drain bolt and drain the oil:
    • Using the 8mm wrench, gradually unscrew the bolt. Be ready to catch the bolt so it doesn't fall into the oil or pan.
    • Let the old oil completely drain out. To avoid a mess, many riders use a small disposable funnel fitted between the skid plate and the case to channel the oil neatly into your drain pan.
  • Install a new crush washer:
    • Thoroughly clean the drain bolt. Replace the old crush washer with a new one if you have it. This ensures a tight seal and prevents leaks.
  • Reinstall the drain bolt:
    • Thread the bolt back in by hand until snug, then gently tighten with your wrench. Avoid over-tightening as the aluminum cases can strip easily. Consult your service manual for the correct torque spec (typically around 10 Nm).
  • Fill with new oil:
    • Remove the oil fill cap on the ignition cover (right side of the engine).
    • With your measuring cup, pour 800 ml of fresh gear oil into the transmission through a clean funnel. The TX300 calls for approximately 0.8 liters of 10W-40 oil, and Motorex is a common factory choice.
    • Some riders stop filling just as oil begins to creep out of the check hole, but it's fine to stay near the 800ml mark. If you're on a sloped surface, make sure the bike is level when checking the oil level.
  • Double-check for leaks:
    • Inspect the drain plug and surrounding area. Wipe off any residual oil and visually confirm the area is clean and dry. If you see any drips, check the crush washer and torque again.
  • Reinstall the oil fill cap:
    • Securely screw the cap back on. Wipe away any excess oil that may have spilled during the fill process.
  • Dispose of old oil properly:
    • Take your used oil to a recycling center or auto parts store that accepts used oil. Never pour it down drains or onto the ground.

Specific Call-Outs for the 2017 Husqvarna TX300

  • Oil Capacity: For 2017, the manual and community sources agree on 800ml (0.8L) as the correct refill amount for the TX300 transmission.
  • Drain Bolt Access: The stock skid plate can make a mess when draining. Use a funnel or modify a disposable water bottle for a clean oil drain.
  • Crush Washer: Replace the washer with every change to prevent slow leaks and possible dust ingress.
  • Recommended Oil: The Husqvarna TX300 manual specifies 10W-40 or a high-quality gear oil such as Motorex for optimal clutch performance.
  • Check the Oil Level: After filling, some owners tilt the bike slightly on its kickstand to ensure optimal filling, but be careful not to overfill.
  • Oil Change Interval: Change every 15 hours of riding or more often if conditions are extreme. Normal to replace more frequently for aggressive riders.

Final Tips

  • Always consult your Husqvarna TX300 2017 owner's manual if you are uncertain about specs or procedures.
  • Keep all tools and parts organized before you start—this makes cleanup and reassembly faster and cleaner.
  • Nitrile gloves help keep hands clean and protected from oil and solvents.
  • If you ride in muddy or wet conditions, check your oil color—milky oil may mean water is getting in, requiring closer inspection.

Follow this guide every 15 hours or after every major ride for the best performance and life from your 2017 Husqvarna TX300. Find all your parts and quality gear 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.