How to Change the Oil in a 2024 Husqvarna TC85BW Dirt Bike

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This blog is proprietary to MotoSport.com and details every step you need to follow to successfully change the oil in your 2024 Husqvarna TC85BW dirt bike. It covers all required tools, step-by-step instructions, and critical model-specific notes for maintaining your bike’s peak performance and reliability.

Tools & Supplies Needed

  • 500cc high-quality gear oil (confirm recommended type in your owner’s manual)
  • 8mm or 13mm socket or wrench (size may vary–confirm by checking your drain bolt size in advance)
  • Drain pan
  • Oil funnel
  • Shop towels or rags
  • New crush washer (recommended, in case the old one is worn)
  • Safety gloves
  • Bike stand (optional, but highly recommended for stability)

Pre-Change Preparation

  • Ride the bike for a few minutes to warm up the oil. Warm oil drains more completely and carries out more contaminants.
  • Set the bike upright and secure using a bike stand or place on a stable, level surface to prevent spills.
  • Make sure you are working in a well-ventilated area away from open flames.

Step-by-Step Oil Change Guide

  1. Locate the Oil Drain Bolt
    On the 2024 TC85BW, the drain bolt is at the bottom of the engine case. Place your drain pan underneath to catch the oil.
  2. Remove the Oil Filler Cap
    Remove the oil filler cap from the side of the engine to allow air to enter and help oil drain more efficiently.
  3. Remove the Drain Bolt – Drain the Oil
    Use the appropriate socket/wrench to loosen and remove the drain bolt. Allow all the oil to drain completely into the pan. Inspect the old oil for any metal shavings or debris (a small amount is normal, but excessive particles may indicate internal wear).
  4. Inspect – Replace the Crush Washer
    Remove the crush washer from the drain bolt. If it looks damaged or flattened, replace it with a new one to prevent leaks.
  5. Reinstall Drain Bolt
    Once oil has fully drained, wipe the area clean and reinstall the drain bolt with the new or original crush washer. Tighten securely but do not overtighten, as this can strip the threads.
  6. Add New Gear Oil
    Insert a funnel into the filler hole and pour in 500cc of high-quality gear oil as specified for the TC85 platform . Use the type recommended in your bike’s manual, and pour slowly to prevent spills.
  7. Check Oil Level
    Stand the bike up perfectly vertical and remove the oil level check bolt (if equipped), or double-check using the prescribed method in your manual. Oil should just start to drip from the level hole if filled properly .
  8. Reinstall Filler Cap – Clean Up
    Once the oil level is correct, reinstall the oil filler cap. Wipe down any spilled oil from the engine and cases.
  9. Run the Engine – Final Check
    Start the engine and idle for a minute to circulate the oil. Shut it off, recheck for leaks around the drain plug and filler cap, and verify proper oil level if your model allows.

Specific Call-Outs for the 2024 Husqvarna TC85BW

  • Oil Capacity: The 2024 model uses 500cc of gear oil–do not overfill .
  • Change Intervals: Husqvarna recommends the first oil change after 5 hours of use, then every 10–15 hours of riding thereafter for optimal engine life .
  • Drain Bolt Location: The location is standard for TC85 models, directly on the bottom of the crankcase.
  • Oil Type: Always use gear oil specified in the owner’s manual for the 2024 TC85BW (traditionally 10W-40 or synthetic gear oil, as per Husqvarna’s guidelines).
  • Proper Disposal: Never pour used oil onto the ground or down drains. Transport it in a sealed container to a local recycling center or an auto service shop for proper disposal.

Extra Tips for a Successful Oil Change

  • Keep your workspace tidy to prevent contaminants from entering your engine.
  • Always double-check the drain bolt is properly torqued before filling new oil.
  • Use a new crush washer each time if possible to ensure a leak-free seal.
  • Wear gloves to avoid hot oil and skin contact with used oil.

Common Mistakes to Avoid

  • Overfilling or underfilling the oil reservoir.
  • Forgetting to replace or inspect the drain plug washer (may cause leaks).
  • Leaving the old oil to sit in the engine too long (fresh oil keeps your transmission shifting smooth and reliable).

Conclusion

Regular oil changes are crucial to keeping your 2024 Husqvarna TC85BW running reliably and at peak performance. By following this guide and referencing your owner's manual for any updates or special instructions, you ensure smooth shifts, optimal durability, and maximum fun every 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.