How to Change the Oil in a 2014 Husqvarna TC125

Shop parts for a 2014 Husqvarna TC125 Dirt Bike.

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Tools and Supplies Needed

  • Socket wrench set (typically 8mm, 10mm or 13mm sockets; verify by inspecting your drain plug size)
  • Drain pan (for collecting old oil)
  • New gear oil (recommended: 15W/50, see your owner's manual)
  • Measuring cup (to ensure you add the correct amount of oil)
  • New crush washer (optional, but recommended to avoid leaks)
  • Funnel (for clean refilling)
  • Shop towels or rags (for cleaning spills and wiping components)
  • Contact cleaner (to clean the area before re-assembly, optional)
  • Gloves (to keep your hands oil-free)

Step-by-Step Oil Change Process

  1. Warm Up the Engine
    • Start your 2014 Husqvarna TC125 and let it idle for a few minutes. This ensures the oil warms up, becoming less viscous and easier to drain.
  2. Stabilize and Prepare the Motorcycle
    • Place the bike on a stand, keeping it upright and stable. This position allows for a complete oil drain.
    • Make sure you are working in a ventilated area, away from open flames or heat sources.
  3. Locate the Drain Plug
    • The gear oil drain plug is situated underneath the engine. Reference your owner's manual if you have difficulty locating it.
  4. Place the Drain Pan
    • Position the drain pan directly under the drain plug to catch all the used oil.
  5. Remove the Drain Plug
    • Using your socket wrench, carefully remove the drain plug.
    • Allow the oil to fully drain. For a more thorough drain, gently tip the bike about 30 degrees towards you – this is especially important as some oil can pool inside the engine's recesses. Let gravity fully empty the crankcase.
  6. Inspect and Clean the Drain Plug
    • Most Husqvarna two-strokes, including the TC125, feature a magnetic drain plug that collects metal debris. Wipe the plug clean with a rag, removing any accumulated metal shavings.
    • Check the crush washer for damage. Replace if necessary to prevent future leaks.
  7. Reinstall the Drain Plug
    • Once the oil is fully drained and the plug is clean, reinstall the drain plug and crush washer. Tighten gently; do not overtighten to avoid stripping the threads (consult your owner's manual for proper torque specifications).
  8. Remove the Filler Cap
    • The filler cap is generally located high on the right-hand engine case. Remove it to prepare for new oil insertion.
  9. Refill with Fresh Oil
    • Place a funnel in the filler opening. Pour in the new gear oil to the manufacturer's recommended quantity for a 2014 Husqvarna TC125: 0.70 liters (0.74 quarts) of 15W/50 engine oil

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    • Use the measuring cup to ensure you add the correct amount.
  10. Reinstall the Filler Cap
    • With a clean towel, wipe away any overflow or debris from the filler area. Reinstall and tighten the filler cap securely.
  11. Confirm Proper Oil Level and Check for Leaks
    • Start the engine and let it run for a minute. Inspect under the motorcycle for leaks around the drain plug and filler cap.
    • Shut off the engine; if applicable, check the oil level using the sight glass or dipstick and top off if needed.
  12. Dispose of Old Oil Responsibly
    • Transfer used oil from the drain pan to a sealed container. Never pour oil down the drain. Take it to a local auto shop or hazardous waste facility for disposal.

2014 Husqvarna TC125 Specific Callouts

  • No engine oil filter: As a two-stroke engine, the TC125 does not use a traditional oil filter. You only replace the gear oil in the transmission case. The combustion side is lubricated by two-stroke premix in the fuel

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  • Magnetic drain plug: Inspect and clean the magnetic drain plug each time to remove tiny ferrous particles and reduce gearbox wear

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  • Oil capacity: 0.70 liters (0.74 quarts) – Do not over- or under-fill. Use the measurement cup for accuracy

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  • Crush washer: Always inspect and, if needed, replace. This prevents leaks and ensures a proper seal.
  • Torque settings: Always refer to your owner's manual for drain plug torque to avoid stripping threads (generally, finger-tight plus a gentle torque is sufficient for most models).

Final Tips

  • Change your gear oil every 8–15 engine hours, depending on riding intensity and conditions. Frequent changes extend engine and gearbox life

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  • Always double check for drips or leaks after your first ride post-change.
  • Keep records of your oil changes to maintain your bike's value and reliability.

For all your maintenance needs, trust MotoSport.com — your one-stop source for tools, oils, and genuine Husqvarna parts.

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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.