How to Change the Oil in a 2019 GAS GAS EC200 — MotoSport.com Exclusive Guide

Shop parts for a 2019 GAS GAS EC200 Dirt Bike.

Routine transmission oil changes are essential for the longevity and performance of your 2019 GAS GAS EC200. Although the EC200 is a two-stroke and does not use engine oil like a four-stroke, its transmission oil (aka gearbox oil) plays a crucial role. Keeping fresh, high-quality oil in your gearbox ensures smooth shifting, reduces wear, and protects internal components from contamination.

Tools and Materials Needed

  • Socket set or end wrench (typically 13mm or 15mm – verify size for your specific drain plug)
  • Oil drain pan
  • Cleaning rag or shop towels
  • Measuring cup
  • Funnel (preferably small)
  • New transmission oil (Typically 75W/80W, high-quality synthetic two-stroke transmission oil is recommended, check owner's manual for specific type and capacity)
  • Torque wrench (optional, for precise tightening)
  • Gloves (for cleanliness and safety)

Preparation

  • Warm up the engine: Run the bike for 2-3 minutes. This helps suspend contaminants in the oil and thins it, allowing for a more complete drain.
  • Ensure stability: Place the bike on a level stand, ensuring it is secure and upright.

Step-by-Step: Changing the Oil

  1. Remove the Oil Drain Plug
    • Locate the oil drain bolt under the engine, on the left side of the crankcase.
    • Place your drain pan directly beneath the plug.
    • Carefully loosen and remove the plug using the appropriate socket or wrench. Remove it slowly to avoid dropping it into the oil pan.
    • Let the oil drain completely. To maximize oil removal, you can gently tilt the bike slightly toward the drain side, but use caution to prevent spills.
  2. Inspect and Clean the Drain Plug
    • Many GAS GAS models feature a magnetic drain plug to capture metal particles.
    • Wipe the plug clean and check for debris. Fine metallic ‘sludge’ is normal, but shards or chunks indicate potential internal damage and should be monitored closely.
  3. Check Gasket or Washer
    • Inspect the crush washer or O-ring on the drain plug. Replace if it is worn, cracked, or flattened to prevent future oil leaks.
  4. Reinstall Drain Plug
    • Thread the plug in by hand to avoid cross-threading.
    • Tighten securely but do not overtighten. Use the specified torque from your service manual (typically around 12–15 Nm for GAS GAS EC200, but always verify). Over-tightening can strip the threads or crush the washer excessively.
  5. Add New Transmission Oil
    • Remove the gearbox fill cap, located near the top of the left crankcase.
    • Use a measuring cup to add the specified amount of oil (approx. 900ml / 0.9L for most EC200 models – always double-check your manual).
    • Pour through a funnel to minimize spills. Access may be tight; a small funnel is helpful.
    • Replace and tighten the fill cap once done.
  6. Cycle the Transmission
    • Before starting the engine, use the kickstarter to rotate the engine a few times or roll the bike in gear. This distributes oil throughout the gearbox for immediate lubrication.
  7. Check for Leaks
    • Inspect the drain plug and fill cap locations for any oil seepage or leaks once the bike has sat for 1–2 minutes.

MotoSport Pro Tips and Model-Specific Notes

  • Best Oil Type: Use a high-quality, fully synthetic 75W or 80W gearbox/transmission oil specifically made for two-stroke dirt bikes. MotoSport stocks a large variety of approved products.
  • Oil Quantity: The 2019 GAS GAS EC200 typically takes around 900ml of gearbox oil. Overfilling or underfilling can harm clutch and shifting performance.
  • Draining Tips: The drain plug is located on the left side under the crankcase. Take care not to burn yourself if the engine or exhaust is warm.
  • Plug Torque: Always use a torque wrench for consistent service and to avoid stripping soft aluminum threads.
  • Inspect Oil: When draining, check the color and consistency. Milky oil can indicate water contamination (possibly from a failing seal), while dark or gritty oil means it’s overdue for a change.
  • Magnetic Plug Debris: Small metallic fuzz is normal; large particles could indicate premature gearbox wear and should be investigated.
  • Service Intervals: Change the oil every 8–10 hours of riding or after heavy use. Always freshen before races or hard outings.
  • Call-outs for 2019 EC200: The oil fill is slightly obstructed by the frame – use a small, flexible-spout funnel. No primary oil filter is featured; just the oil itself. The magnetic drain bolt design is similar to KTM and Husqvarna models.

Final Checklist

  • Ensure correct oil level
  • Confirm no leaks at plug or fill cap
  • Clean spilled oil from engine and frame
  • Dispose of old oil responsibly, checking MotoSport or your local service center for oil recycling

Keep your 2019 GAS GAS EC200 running strong — trust MotoSport.com for parts, tools, oil, and expert guides every step of the way.

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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.