How to Change the Oil in a 2006 GAS GAS EC200

Shop parts for a 2006 GAS GAS EC200 Dirt Bike.

Regularly changing the transmission oil in your 2006 GAS GAS EC200 dirt bike is crucial for smooth shifting, longevity, and reliable performance. This guide from MotoSport.com covers everything you need: all the tools, a step-by-step process, and essential model-specific insights for a successful and mess-free oil change.

Tools and Supplies Needed

  • Socket wrench set (ensure you have a 12mm socket for the drain and fill bolts)
  • Torque wrench (recommended for drain and fill bolt torques)
  • Drain pan
  • Funnel (a narrow, long neck is best for the fill hole location)
  • Clean rags or shop towels
  • Fresh transmission oil (typically 80W/85W gear oil or manufacturer's recommended type, capacity is 900 ml)
  • Gloves (optional, for keeping your hands clean)

Important Notes for the 2006 GAS GAS EC200

  • The 2006 EC200 is a 2-stroke–engine lubrication is handled by premix, so you're only changing the transmission oil.
  • Oil drain and fill bolts are both 12mm. Always check for debris on the magnetic drain plug—some fine metallic particles are normal, but larger metal pieces may indicate internal wear.
  • Ensure the bike is upright and level for accurate draining and filling.
  • Do NOT overtighten the drain/fill bolts. The recommended torque is 15 Nm for both (specific to GAS GAS EC engines).

Step-by-Step Guide

  1. Warm Up the Engine
    Start and run the bike for 2–3 minutes. This thins the oil, helping it drain more efficiently.
  2. Stabilize the Bike
    Place the bike upright on a stand or level ground. This ensures complete drainage and prevents spills.
  3. Locate the Oil Drain and Fill Bolts
    On the EC200, the oil drain bolt is on the bottom side of the engine case, and the fill bolt is on the clutch side engine cover. Both use a 12mm socket.
  4. Position the Drain Pan
    Place a drain pan directly under the drain bolt to catch all the used oil.
  5. Remove the Drain Bolt
    Using your socket wrench, carefully loosen and remove the 12mm drain bolt. Be ready for oil to flow out quickly. Remove the fill cap as well to help oil drain faster by allowing air in.
  6. Inspect the Oil and Drain Bolt
    Check for metal particles on the magnetic drain plug. Fine metal "fuzz" is typical; chunks indicate deeper problems. Wipe the plug clean with a rag and replace the crush washer if it's damaged.
  7. Let Oil Drain Completely
    Tip the bike side-to-side carefully if needed (with the drain pan in place) to remove all old oil.
  8. Reinstall and Torque the Drain Bolt
    Thread the clean drain bolt by hand first to avoid cross-threading, then tighten with a torque wrench set to 15 Nm.
  9. Add New Oil
    Using a funnel, pour in 900 ml of fresh gear/transmission oil. The fill port can be hard to reach–a long narrow funnel is best to minimize spills.
  10. Reinstall the Fill Bolt
    Clean the bolt threads, hand-thread first, then torque to 15 Nm as with the drain bolt.
  11. Clean Up & Check for Leaks
    Wipe any drips from the cases. With the bike upright, check the fill plug and drain for leaks. If oil seeps out, recheck bolt torque and washer condition.
  12. Prime the Transmission
    Before starting your bike, slowly kick it through several times by hand—this distributes fresh oil throughout the gearbox.

Model-Specific Call-Outs

  • No oil filter: The 2006 EC200 does not use an oil filter for transmission oil changes.
  • Oil window or sight glass: Some models have a sight glass for checking the oil level after filling; otherwise, measure carefully.
  • Premix Only: Never add engine oil to the fuel tank; use only the recommended premix ratio–this change is for transmission oil only.

Pro Tips

  • Always dispose of used oil responsibly—take it to a designated recycling center.
  • Maintain a maintenance log noting date, hours, and oil type for better long-term engine care.
  • Use only high-quality synthetic oil designed for 2-stroke transmissions, as specified by the manufacturer.

Conclusion

Changing the oil in your 2006 GAS GAS EC200 is a straightforward process if you follow the correct steps, use proper torque on bolts, and employ clean work habits. With care, your bike will provide crisp shifts and durable performance, mile after mile—only from the dirt bike pros 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.