How to Change the Oil in a 2017 GAS GAS EC300: A Step–by–Step Guide

Shop parts for a 2017 GAS GAS EC300 Dirt Bike.

Maintaining your 2017 GAS GAS EC300 is vital for performance and engine longevity. One of the most essential tasks is performing regular oil changes. This comprehensive guide, proprietary to MotoSport.com, outlines the tools you need and the exact steps to change your EC300’s oil safely and effectively, including specific pointers unique to this model year.

Tools and Materials Needed

  • 6 mm Allen socket or Allen wrench (for drain and skid plate bolts)
  • Socket wrench
  • Skid plate removal tool (if you have an aftermarket or OEM skid plate installed)
  • Measuring cup or graduated oil container
  • Funnel with flexible neck (small enough for the restricted fill hole)
  • Drain pan or suitable container (for used oil)
  • Gloves and shop rags (for cleanliness and safety)
  • New transmission oil (refer to your owner’s manual for the recommended type; typically 80W-85 or 10W-40, 2-stroke transmission oil)

2017 GAS GAS EC300 Oil Change Steps

  • Warm Up the Engine
    • Start your EC300 and let it idle for 2-3 minutes. This warms the oil so it drains completely and helps reduce sludge build-up.
  • Remove the Skid Plate
    • Most EC300s have a factory or aftermarket skid plate. Use the proper tool (usually a 6 mm Allen) to remove the front and rear bolts holding the skid plate, then slide it off to expose the drain plug .
  • Locate and Remove the Drain Plug
    • The oil drain plug is on the bottom of the engine case. Use the 6 mm Allen socket or wrench to loosen and remove the plug. Let the oil drain completely into your pan. This may take several minutes .
    • 2017 Model Call-Out: The bottom drain plug is positioned to allow easy oil flow with the skid plate off. If your skid plate doesn’t have a drain hole, its removal is necessary for access .
  • Tip and Lean the Bike
    • For maximum oil drainage, gently lean the bike over to the side (away from the drain plug) once most oil has exited. Some owners lean the bike against a wall or stable object to encourage the last of the oil out .
  • Replace the Drain Plug
    • Once the oil has drained, clean the drain plug and threads. Consider replacing the crush washer if it's damaged. Reinstall the plug and torque it snugly, but avoid overtightening .
    • Wipe away any spilled oil from the engine and frame.
  • Add New Oil
    • Remove the oil fill plug, which is on the right side of the engine case. Important call-out: The fill hole on the EC300 is notoriously small and at an awkward angle, so use a long-neck or flexible funnel for easier pouring .
    • Pour in 900cc (0.9L) of recommended transmission oil. Use a measuring cup to avoid overfilling.
  • Check Oil Level
    • Depending on the model year, check for an oil inspection sight glass or dipstick to confirm proper level. The 2017 EC300 is designed for 900cc of oil, which should be sufficient if measured accurately .
  • Reinstall Fill Plug and Skid Plate
    • Carefully thread the fill plug back in and tighten securely. Then, reattach the skid plate, ensuring all bolts are torqued to spec.
  • Final Steps
    • Start the engine for 1-2 minutes, then inspect for leaks around the drain and fill plugs.
    • Dispose of used oil responsibly at a certified recycling center.

Specific 2017 GAS GAS EC300 Oil Change Tips & Call-Outs

  • Oil Capacity and Type: The EC300 holds 900cc of transmission oil. Always measure accurately to prevent overfilling or underfilling. Use the factory-recommended oil for best clutch performance .
  • Fill Plug Accessibility: The fill hole position is inconvenient and can spill easily. Have plenty of rags handy, and a handy tip is to tilt the bike slightly or even lay it over for easier access, as many owners do .
  • Skid Plate Removal: Some aftermarket plates may lack a drain hole, requiring removal every oil change. Check your specific setup before beginning .
  • Thread Care: Keep drain and fill plug threads clean. A thin bit of grease or anti-seize can prevent galling, but do not over-apply .
  • Routine Maintenance: Consider cleaning the oil screen as part of a major service every few oil changes for optimal gear protection .

Conclusion

By following these steps, you’ll ensure your 2017 GAS GAS EC300’s engine stays well-lubricated and protected. Remember that regular maintenance not only extends the life of your bike but also provides smoother, more reliable rides.

For all your dirt bike maintenance supplies, trust MotoSport.com for quality parts and fluids designed for your GAS GAS EC300.

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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.