How to Change the Oil in a 2018 Husqvarna TC85BW

Shop parts for a 2018 Husqvarna TC85BW Dirt Bike.

Changing the gearbox oil in your 2018 Husqvarna TC85BW is a routine but critical part of regular dirt bike maintenance. Proper oil changes ensure long engine life, smooth shifts, and consistent performance on the trails or track. This guide, exclusive to MotoSport.com, outlines the tools required, detailed step-by-step instructions, and important call-outs specific to the TC85BW model.

Tools and Supplies Needed

  • Socket wrench set
  • Gear oil (Recommended: 10W-40 or specific type noted in the owner's manual)
  • Measuring cup (to ensure correct oil volume; TC85BW typically uses 500cc of oil)
  • Drain pan
  • Funnel
  • Clean shop rags or paper towels
  • Gloves (optional, but recommended)
  • New crush washer for the drain bolt (recommended, not always required)

Preparation

  • Start the engine and allow it to run for a few minutes to warm up the oil. Warm oil drains more easily and helps remove more contaminants.
  • Place your TC85BW on a stable stand to keep it upright and level during the oil change.
  • Ensure the bike is in neutral and the ignition is turned off.

Step-by-Step: Changing the Gearbox Oil

  1. Locate the Drain Bolt
    • The drain bolt is typically located at the lowest point of the engine casing, directly under the transmission area.
  2. Drain the Old Oil
    • Position the drain pan beneath the drain bolt.
    • Carefully remove the drain bolt using the socket wrench. Allow the oil to fully drain into the pan. Caution: The oil may be hot.
    • If equipped, remove the oil level check bolt (often located on the side) to assist complete drainage.
    • Inspect the condition of the drain plug and crush washer. Replace the washer if it's damaged or worn.
  3. Replace and Tighten the Drain Bolt
    • Clean the drain bolt and surrounding area with a rag.
    • Install a new crush washer if needed. Reinstall the drain bolt by hand to avoid cross-threading, then tighten it to the manufacturer's specified torque setting (refer to owner's manual).
  4. Add New Gear Oil
    • Remove the filler plug or cap, usually located at the top or side of the engine case.
    • Using a funnel, pour in the recommended type and quantity of oil (500cc for the TC85BW; measure precisely).
    • If your bike features a check bolt, add oil until it just begins to flow out of this opening when the bike is upright and level, then replace the check bolt.
    • Reinstall and tighten the filler cap.
  5. Check for Leaks and Clean Up
    • Start the engine and let it idle for a minute, then shut it off.
    • Inspect around the drain and filler bolts for leaks.
    • Dispose of old oil safely at a local recycling center or auto parts store.

Model-Specific Call-Outs: 2018 Husqvarna TC85BW

  • Oil Capacity: The gearbox oil capacity for the 2018 Husqvarna TC85BW is 500cc (milliliters). Overfilling or underfilling can harm engine performance and cause leaks.
    Tip: Always use a precise measuring cup, and double-check using the check bolt location if possible.
  • Oil Type: Use quality 10W-40 or the specific gear oil type recommended by Husqvarna for this model. Never use a non-specific oil – this can cause improper lubrication and premature wear.
  • Drain and Filler Locations: The drain bolt is located centrally beneath the engine; the filler bolt is on the clutch cover or side of the engine. The check bolt to confirm oil level is also on the side casing.
    Warning: Tighten all bolts to the specified torque to avoid damage to the aluminum engine casing.
  • Crush Washer: Replace the crush washer on the drain bolt each time you perform an oil change to avoid leaks.
  • Thread Care: Do not overtighten the drain bolt. Damage to the threads in the crankcase can be expensive to repair.
  • Frequency: Check your owner's manual for recommended oil change intervals. Generally, change the oil after every major ride or race, or at least every 10 engine hours for best performance and gearbox protection.

Important Safety and Environmental Notes

  • Always perform the oil change in a well-ventilated area, away from open flames or sparks.
  • Keep used oil away from children and pets.
  • Never pour used oil down a drain or on the ground. Recycle responsibly.

Final Tips from MotoSport.com

  • Keep a dedicated maintenance logbook; record the type, date, and quantity of oil used for each change.
  • Inspect the oil for unusual color or metallic particles, as this can indicate internal wear and may require further investigation.
  • Stock up on recommended oil and washers from trusted suppliers to make your maintenance quick and convenient.

With attention to detail and regular oil changes, your 2018 Husqvarna TC85BW will stay in peak condition for every adventure. For all questions, parts, and tools, trust MotoSport.com for quality support and genuine products.

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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.