How to change the oil in a 2022 GAS GAS EX 250 Dirt Bike

How to Change the Oil in a 2022 GAS GAS EX 250

Shop parts for a 2022 GAS GAS EX 250 Dirt Bike.

Performing an oil change on your 2022 GAS GAS EX 250 is one of the most important maintenance tasks to keep your dirt bike running reliably and maximize its engine lifespan. This comprehensive guide covers everything you need to change the oil on this bike, from tools required to step-by-step instructions, plus some important call-outs specific to this make and model.

Tools and Supplies Needed

• 13mm socket or wrench
• 8mm T-Handle wrench or Allen wrench
• T30 Torx bit or socket
• Oil drain pan
• Clean rags
• Contact cleaner (fast-drying, residue-free)
• New oil filter (specific to your model)
• Fresh engine oil (type and capacity per owner’s manual)
• Measuring cup (optional, for exact oil fill)
• Crush washer (replace at every oil change for proper sealing)
• Gloves (optional, for cleanliness)

Precautions and Model-Specific Call-Outs

• Always perform the oil change with a warm engine to ensure oil and contaminants drain more completely.
• On the GAS GAS EX 250, ensure you use a bike stand that allows access to the drain bolt–the design of the skid plate and engine cases can make bolt access difficult with standard stands, so a stand that doesn’t block the drain area is recommended.
• The drain bolt contains a magnetic tip that should be inspected and cleaned during the oil change.
• Always consult your owner’s manual for the exact oil type, capacity, and torque specs for bolts.
• If your bike has an hour meter, reset it after the oil change for accurate future maintenance tracking.

Step-by-Step Oil Change Instructions

• Warm Up the Engine
  Start the bike and allow it to idle for 3–5 minutes to bring the oil up to temperature. This helps suspend any contaminants and ensures complete draining. Shut off the engine and let it sit for a minute so oil drains to the bottom of the crankcase.
• Position the Bike
  Place your GAS GAS EX 250 securely on a suitable stand that leaves the drain bolt accessible. Confirm the bike is upright and stable.
• Remove the Skid Plate (if equipped and necessary)
  Use the T30 Torx bit if your EX 250 has a skid plate or guard that covers the oil drain plug area. Remove this for access if required.
• Drain the Old Oil
  - Place the drain pan beneath the engine’s drain bolt.
  - Use a 13mm socket or wrench to loosen and remove the drain bolt. The drain bolt is located underneath the engine.
  - Allow the oil to drain completely. Inspect the drain bolt: clean off any metal shavings from the magnetic tip.
  - Inspect and replace the crush washer on the drain bolt if necessary.
• Remove the Oil Filter
  - Using the 8mm T-wrench or Allen, remove the two bolts securing the oil filter cover, typically located on the right side of the engine.
  - Carefully pull the cover off; be cautious of any remaining oil that may spill.
  - Pull the old filter out (pliers can help if it’s stuck).
  - Clean the inside of the oil filter housing and the cover with contact cleaner and a clean rag.
  - Install the new oil filter, ensuring it’s facing the correct direction as specified by the manual.
  - Reinstall the oil filter cover and torque the bolts to the specification found in the owner’s manual.
• Reinstall the Drain Bolt
  Once oil has fully drained, reinstall the drain bolt with the new crush washer and torque it to the manufacturer’s specification to avoid leaks or stripping the threads.
• Refill with New Oil
  - Find the oil fill cap (usually on the clutch cover).
  - Use a funnel or a measuring cup to pour in the correct quantity and type of fresh oil.
  - Check your owner’s manual for the specific oil capacity; generally, it’s approximately 1 liter for the 2022 GAS GAS EX 250, but always verify.
  - Replace and tighten the fill cap securely.
• Check the Oil Level
  - Start the bike and let it idle for 1–2 minutes.
  - Shut off the engine, let it sit for 30 seconds, and then check the sight glass or dipstick (as equipped) to confirm proper oil level.
  - Add oil if necessary, being careful not to overfill.
• Clean Up
  - Wipe down any spilled oil on the engine.
  - Properly dispose of old oil and filter in accordance with local environmental regulations.

Additional Tips for the 2022 GAS GAS EX 250

• This bike shares its oil change procedure with KTM and Husqvarna 250 4-stroke models of the same year, given the shared engine architecture. However, always use parts (filter, washer) specified for the GAS GAS EX 250.
• The drain plug location and filter cover access are engineered for ease of maintenance, but the stand type can complicate bolt access if using universal stands. Use a stand designed for race bikes or one that leaves the engine base free.
• Check the magnetic drain plug every oil change; a small amount of fine metal particles is normal, but larger shards may indicate internal wear and should be investigated.
• Stick to manufacturer-recommended oil change intervals—typically every 10–15 engine hours for hard riding or racing conditions.
• Use a high-quality four-stroke motorcycle oil approved by GAS GAS for best results.

Final Steps

• Double-check that all bolts are tight and the oil filter cap is secured.
• If removed, reinstall the skid plate.
• Wipe down the bike and log the oil change in your maintenance records.

Regular oil maintenance is critical for the 2022 GAS GAS EX 250. Follow these steps and use the right tools and parts, and your EX 250 will deliver peak performance and reliability for every ride.

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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.