How to Change the Oil in a 1993 Suzuki DR250S

Shop parts for a 1993 Suzuki DR250S Dirt Bike.

Changing the oil on your 1993 Suzuki DR250S is a key maintenance job that keeps your engine running smoothly and extends the life of your dirt bike. This guide is written specifically for this model and features all the steps, tools, and special notes you need to get the job done right. All content is proprietary to MotoSport.com.

Tools and Materials Needed

  • Socket set with appropriate sockets (typically 10-17mm)
  • Oil filter wrench
  • Drain pan
  • Funnel
  • Rags or paper towels
  • New oil filter (match to the 1993 DR250S specifications)
  • Engine oil: Use 1.9 liters, 4-stroke motorcycle oil, recommended viscosity is 10W-40 (refer to your manual)
  • Skid plate removal tools (if equipped with a skid plate)
  • Gloves (recommended for cleanliness and safety)

Step-by-Step Oil Change Instructions

1. Prepare the Bike

  • Start your 1993 Suzuki DR250S and let it idle for a few minutes. This warms the oil, which helps it drain more thoroughly.
  • Turn the engine off and place the bike on a secure stand or kickstand on level ground.

2. Remove the Skid Plate (If Equipped)

  • If your bike has a skid plate covering the drain plug or frame tank, use the appropriate socket or wrench to remove it. This step allows access to both the frame and engine drain plugs and the internal screen filter.

3. Drain the Engine Oil

  • Locate the sump (engine) oil drain plug under the engine. Place the drain pan beneath it and use the socket wrench to remove the plug. Allow all oil to drain completely.
  • Locate the frame oil drain plug at the bottom of the downtube (the DR250S has a dry-sump system, so oil is also stored in the frame). Remove the plug and drain the frame oil into the pan.
  • Be aware: On the DR250S, two separate plugs must be opened and drained for a full oil change.

4. Remove and Replace the Oil Filter

  • Find the oil filter cover (generally on the right side of the engine). Remove the bolts and take off the cover using the oil filter wrench if needed.
  • Take out the old oil filter. Make sure the cover gasket or O-ring comes out with the filter and check for damage; replace if necessary.
  • Install the new filter, ensuring it is seated correctly. Lightly coat the new gasket or O-ring with fresh oil before installing the cover.
  • Replace and tighten the oil filter cover bolts evenly.

5. Check and Clean the Oil Screen Filter (Optional but Recommended)

  • The DR250S features an oil strainer (screen filter) often located in the frame (sometimes attached to the oil line). Remove, inspect, and clean this screen if you're performing a thorough change. Reinstall after cleaning.

6. Reinstall Drain Plugs and Skid Plate

  • Once all oil has drained, reinstall and securely tighten the engine and frame drain plugs. Do not overtighten to avoid stripping the threads or damaging crush washers (replace these washers if damaged).
  • Reattach the skid plate if it was removed.

7. Add New Oil

  • Using a funnel, pour 1.9 liters of 10W-40 motorcycle oil into the oil fill opening. Fill slowly and avoid spills.
  • Wait a few moments and check the oil level using the sight glass or dipstick per the owner's manual instructions. Add oil as needed to reach the proper level.

8. Start and Check for Leaks

  • Start the engine and let it run for 30-60 seconds. Shut it off and inspect all drain plugs and the oil filter cover for leaks.
  • Recheck the oil level, as it may decrease after circulating through the new filter and screen. Top off as needed.

Special Notes for 1993 DR250S Owners

  • Two Drain Points:– The DR250S uses a dry sump system with both engine and frame drains; be sure to drain both for a complete oil change .
  • Oil Capacity:– Total oil needed (with filter change) is 1.9 liters.
  • Oil Consistency:– If your old oil appears milky, foamy, or unusually thin, it could indicate contamination by fuel, water, or cleaning agents. It is wise to perform an extra oil change within a short period to ensure complete removal of contaminants .
  • Filter and Strainer:– Regularly check and clean the screen filter/strainer as debris buildup can reduce oil flow, risking engine damage .

Troubleshooting and Tips

  • Dispose of old oil and the used filter at a certified recycling facility.
  • Always use oil specified for four-stroke motorcycles; automotive oils may not provide proper protection.
  • Log your oil change date and mileage for future reference.

Doing these steps will keep your 1993 Suzuki DR250S running strong. For all your parts, oil, and filter needs, trust MotoSport.com—your partner in dirt bike maintenance and performance.

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Shop Oil Fillers and Drain Plugs for a 1993 Suzuki DR250S Dirt Bike.

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.