How to Change the Oil in a 2013 GAS GAS EC250F: A Comprehensive MotoSport.com Guide

Shop parts for a 2013 GAS GAS EC250F Dirt Bike.

Changing the oil in your 2013 GAS GAS EC250F is essential for maintaining engine health and achieving peak performance. This guide covers everything you need to know, including tools and supplies, step-by-step instructions, and model-specific tips crucial for this make, model, and year.

Tools – Materials Needed

  • 13mm socket or wrench — for the drain bolt
  • T30 Torx bit — some oil screen covers may use Torx fasteners
  • 8mm Allen/hex key — for the oil filter cover bolts
  • Drain pan — to collect used oil
  • Contact cleaner — fast-drying and residue-free
  • Clean rags — for cleaning up spills and wipe-down
  • Needle nose pliers — for removing and cleaning the oil screen
  • New engine oil — as specified in your owner's manual
  • New oil filter
  • New crush washer — essential for preventing leaks
  • Torque wrench — for properly torquing the drain plug
  • Bike stand — avoid regular triangle stands; use a stand that keeps the drain plug accessible

Preparation

  • Make sure the engine is warm, but not hot — this helps the oil drain more effectively.
  • Set the bike on a proper maintenance stand that allows you to access the drain bolt. Avoid stands that block the bottom of the engine (specific to 250F models).
    • If possible, lean the bike slightly toward the drain side to help the oil fully empty.
  • Lay out all your tools and cleaning supplies within easy reach.

Step-by-Step Oil Change Instructions

  1. Remove the Drain Bolt
    • Place the drain pan under the bike's oil drain bolt (you'll find it at the bottom of the crankcase).
    • Using the 13mm wrench, crack the drain bolt loose and remove it by hand.
    • Let all the old oil drain completely — this may take several minutes. Using your clean rag, wipe the area around the opening.
    • Inspect the magnetic tip of the drain bolt for any metal shavings — a few small flecks are normal, but an excessive amount may indicate internal wear

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  2. Remove and Inspect the Oil Screen (if equipped)
    • Some models feature an oil screen held in by a Torx or hex fastener. With the oil drained, use the T30 Torx bit or corresponding tool to carefully remove the cover.
    • Withdraw the oil screen with needle nose pliers, spray it with contact cleaner, and check for any debris or shavings

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  3. Clean the Drain Plug and Replace the Crush Washer
    • Clean the drain plug thoroughly. Replace the crush washer every oil change to help prevent oil leaks

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  4. Reinstall Drain Plug and Oil Screen
    • Reinstall the oil screen, making sure it seats correctly in its groove. Misaligning it can allow debris into the oil system.
    • Install the drain plug and torque to spec (typically around 15 ft-lbs, but always check your owner's manual for exact torque).
  5. Remove and Replace the Oil Filter
    • The oil filter is usually located on the right side of the engine and secured by two or more 8mm bolts.
    • Carefully remove these bolts and the cover. Using pliers if needed, withdraw the old oil filter.
    • Wipe the cover and check/replace the O-ring as needed. Lubricate the new filter's O-ring with a little fresh oil and install it, making sure it seats fully.
    • Reinstall the cover and torque the bolts appropriately to avoid stripping or damaging the O-ring and cover

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  6. Refill with New Oil
    • Consult your owner's manual for the correct oil type and quantity (usually around 1–1.1 liters for this model).
    • Pour in the oil using a funnel. Replace the oil fill cap.
  7. Final Checks
    • Start the engine and let it idle for about 1 minute, then shut it off and let it sit for another minute so the oil can settle.
    • Check the oil level using the dipstick or sight glass. Add oil as needed to reach the correct level

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    • Inspect for any leaks around the drain plug and filter cover. If you see any, shut off the engine and recheck the torque on fasteners.

2013 GAS GAS EC250F Model-Specific Call-Outs

  • Drain plug location: Make sure your stand does not block access to the drain bolt, which is uniquely angled in this model family

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  • Oil screen inspection: Always clean and check the oil screen for debris—it's a crucial early warning system for engine wear

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  • Proper O-ring condition: Carefully inspect and lightly oil the O-rings on the filter cap and drain bolt to prevent leaks

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  • Filter cover torque: Over-tightening the oil filter cover can warp it or damage the O-ring—use a torque wrench for precision.
  • Lean to drain: Slightly leaning the bike toward the drain bolt will help you get the most old oil out, keeping the new fill cleaner

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Disposal – Environmental Tips

  • Always dispose of used oil and filters properly: many auto parts stores and recycling centers accept motorcycle oil.
  • Wipe down any spills promptly to keep your garage safe and clean.

Conclusion

Changing the oil in your 2013 GAS GAS EC250F is a straightforward job armed with these tips and the right tools. Following these steps ensures your bike stays in top running condition and keeps you on the trails longer. For parts, tools, and oils, shop MotoSport.com—your trusted motocross source.

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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.