How to Change the Oil in a 2012 Suzuki DRZ400SM

Shop parts for a 2012 Suzuki DRZ400S Dirt Bike.

Keeping up with routine oil changes is key to ensuring your 2012 Suzuki DRZ400SM runs reliably for years to come. This how-to guide provides a step-by-step, detailed processspecific to the DRZ400SM's dry sump oil system and unique dual-drain plug setup. The information here is proprietary to MotoSport.com and crafted exclusively for DRZ400SM owners.

Tools and Supplies Needed

  • Ratchet
  • 8mm, 12mm, and 17mm sockets
  • Torque wrench (essential for reinstalling drain bolts to correct spec)
  • Oil filter
  • 2 quarts 10W-40 motorcycle oil (premium, motorcycle-specific recommended)
  • New drain bolt washers (recommended every oil change)
  • Drain pan (large, as oil drains from both the frame and the crankcase)
  • Funnel
  • Rags or shop towels
  • Gloves and safety glasses
  • Flat workspace and block of wood (helpful for leveling bike)

Model- and Year-Specific Owner Call-Outs

  • The DRZ400SM (2000-current, including 2012) hasn't changed significantly since its introduction, so the procedure applies to your 2012 model, as well as most S and E versions.
  • This bike uses a dry sump oil systemoil is stored in the frame, not the crankcase. Remember to drain oil from both drain plugs: one on the frame, one on the crankcase.
  • The DRZ400SM oil filter is easily accessible, but removing the skid plate first makes the process much cleaner.
  • Check for any metal debris on the crankcase drain plug magnetthis is a critical check for early signs of engine wear.
  • After oil changes, always make sure the oil level is correct with the bike upright. Leaning on the kickstand will give a false low reading.
  • Suzuki's oil change interval: First at 600 miles, then every 3,500 miles or 12 months, whichever comes first. Aggressive riders or racers may need to service oil more frequently.

Step-by-Step Oil Change Procedure

  1. Warm Up the Engine
    • Idle the engine for 2-3 minutes to warm the oil. This helps suspend contaminants and ensures easier, more complete draining.
  2. Remove the Skid Plate (Recommended)
    • Use an 8mm socket to remove the four skid plate bolts. Taking the plate off prevents making a mess when removing both drain plugs and the filter.
  3. Remove the Oil Filler Cap/Dipstick
    • On the DRZ400SM, this is located on top of the frame. This step vents the oil system, allowing oil to drain freely.
  4. Drain the Crankcase Oil
    • Place a large drain pan under the crankcase. Use a 17mm socket to remove the drain bolt and washer. Let all the oil flow out.
    • Inspect the drain plug's magnet for metallic debris. Replace the washer if worn.
  5. Drain the Frame Oil
    • Relocate the pan under the frame drain plug (lower part of the frame's down tube). Use a 12mm socket to remove the bolt and washer. Allow oil to drain fully.
    • Inspect this washer and replace if needed.
  6. (Optional) Balance the Bike
    • Tip: Place a block of wood under the kickstand to get the bike nearly vertical. This allows for a more complete drain.
  7. Replace and Torque Both Drain Bolts
    • Install new washers (recommended).
    • Start both bolts by hand, then torque the crankcase drain bolt and the frame drain bolt to 15 ft-lb (about 20 Nm) using a torque wrench.
  8. Remove and Replace the Oil Filter
    • Use an 8mm socket to remove the three bolts securing the oil filter cover.
    • Remove the cover, being careful of any oil spillage.
    • Take out the used oil filter and O-rings (inspect and replace if worn).
    • Install new filter with the correct orientation (arrow facing up) and reinstall the cover. Hand-tighten bolts evenly; torque to spec (usually around 7 ft-lb/10 Nm).
  9. Refill with Fresh Oil
    • Insert a funnel into the frame filler opening and add 2 quarts (1.9-2.0 L) of 10W-40 motorcycle oil.
    • Replace the dipstick/filler cap.
  10. Run the Engine and Check for Leaks
    • Start the engine and idle for 30-60 seconds. Watch for leaks at the drain plugs and filter cover.
    • Shut the engine off and let it sit for 1-2 minutes to allow oil to settle. Check oil level with the bike upright, not on the kickstand. Top off oil if necessary.
  11. Reinstall the Skid Plate
    • Use the 8mm socket to reinstall the four bolts and your skid plate.
  12. Dispose of Old Oil and Filter Properly
    • Take used oil and filter to a local recycling center or auto parts store with an oil recycling program.

MotoSport.com Pro Tips

  • Oil-changing kits for the DRZ400SM are available, including oil, filter, and washers for convenience and to prevent leaks.
  • If you ride off-road or in dirty/dusty conditions, consider shortening the oil-change interval.
  • Always use motorcycle-specific oil for proper clutch lubrication and engine protection.
  • Tighten all bolts to factory specovertightening can damage threads in the case or frame.

Your 2012 Suzuki DRZ400SM will thank you with thousands of miles of smooth, dependable performance. For more exclusive tips and genuine parts, trust MotoSport.com as your go-to source for Suzuki motorcycles.

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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.