How to Change the Oil in a 2022 Husqvarna TC85

Shop parts for a 2022 Husqvarna TC85 Dirt Bike.

MotoSport.com presents a complete guide to changing the oil in your 2022 Husqvarna TC85 dirt bike. Regular oil changes are essential to maintain optimal engine and transmission performance, especially for high-revving two-stroke race machines like the TC85. The process is straightforward, but attention to detail ensures you get the best from your machine and avoid costly mistakes.

Tools & Supplies Needed

  • 8mm and 13mm T-handle or socket wrench
  • Drain pan or oil catch container
  • Motul Trans Oil or another recommended two-stroke gearbox oil
  • 500cc measuring cup or graduated oil container
  • Clean shop rags or towels
  • New crush washer (recommended for the drain bolt)
  • Torque wrench (with NM/Ft-lb settings)
  • Funnel (optional, but makes pouring easier)
  • Rubber gloves & safety glasses (optional, for clean-up and safety)

Before You Begin: TC85–Specific Callouts

  • Oil capacity: 500cc (milliliters) of oil is required for the 2022 Husqvarna TC85—s gearbox.
  • Drain plug torque: The drain plug/crush washer should be torqued to 15 Nm (Newton meters)–do not overtighten.
  • Oil: Use high-quality two-stroke gearbox oil (Motul Trans Oil is commonly used).
  • Level check: There is a dedicated oil level screw to ensure filling; do NOT simply rely on visual estimation.

Step-by-Step Oil Change Procedure

  • Warm up the engine
    • Start the bike and let it idle for 1–2 minutes in a well-ventilated area. This slightly warms the oil, ensuring better flow and more thorough draining.
    • Turn off the engine and let it cool briefly to avoid burns.
  • Clean around the oil fill and drain areas
    • Use shop rags to wipe away any dirt or debris around the drain plug, oil fill plug, and oil level screw. This prevents contamination entering the gearbox.
  • Remove the drain plug
    • Place the drain pan beneath the bike underneath the engine/tranny area.
    • Using the correct T-handle or socket (usually 8mm), carefully remove the drain plug with the crush washer.
    • Allow all old oil to completely drain out. Tipping the bike gently side-to-side helps clear all old fluid.
  • Inspect and replace the crush washer
    • Inspect the crush washer for damage or wear. Replace with a new one to ensure a leak-free seal.
  • Reinstall the drain plug
    • Clean the plug and threads, then screw it back in by hand.
    • Set your torque wrench to 15 Nm (Newton meters) and tighten the drain plug to spec.
  • Remove the filler and oil level screws
    • Using the appropriate wrench, remove the filler plug (top) and the oil level screw on the side of the case.
    • The oil level screw is the verification point – oil should just reach the bottom of its hole when the correct amount is in.
  • Add the new oil
    • Using your 500cc measuring device, pour 500cc of recommended gearbox oil (Motul Trans Oil or as specified in your manual) into the fill hole.
    • A funnel is helpful to avoid spills.
  • Check the oil level
    • Let the oil settle.
    • Oil should just reach the bottom of the oil level screw. When it starts to drip out, it‘s full.
    • Reinstall the oil level screw securely.
  • Reinstall the filler plug
    • Replace the oil fill plug and tighten by hand, then gently snug with the wrench.
  • Clean up
    • Wipe away any spilled oil from the engine and frame.
    • Dispose of old oil responsibly—auto parts stores and motorcycle shops usually recycle used oil.
  • Double-check
    • Start the bike and let it idle for a few minutes.
    • Turn off engine and inspect for leaks around the drain plug and gear case.

Proprietary Tips for 2022 Husqvarna TC85 Owners

  • Never overfill: excess oil can cause transmission drag or leaks.
  • Always use a new crush washer for the drain bolt; this is a common source of leaks if reused.
  • Follow the 500cc capacity precisely—overfilling or underfilling can lead to shifting issues or component wear.
  • Use gearbox-specific oil, not engine oil—these are formulated for the high-shear loads in transmissions.

Why Change the Oil?

  • Fresh gearbox oil protects transmission gears and clutch plates, preventing premature wear and shifting issues.
  • Contaminants and moisture build-up can cause corrosion and reduce gear life.
  • Routine changes (every 10–20 hours of riding or more frequently for racing) maximize performance and reliability.

Disposal Reminder

  • Never pour waste oil down drains or on the ground—take it to a MotoSport.com-recommended recycling center for responsible disposal.

With these steps and tips, your 2022 Husqvarna TC85 will stay protected and ready for the toughest rides. If you‘re not comfortable changing your oil, a MotoSport.com-certified technician can help. Proper maintenance is the key to winning on and off the track.

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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.