How to Change the Oil in a 2022 Suzuki DR-Z400SM – MotoSport.com Expert Guide

Shop parts for a 2022 Suzuki DR-Z400SM Dirt Bike.

Regular oil changes are essential to keep your 2022 Suzuki DR-Z400SM running reliably and extend its engine life. This guide details every step you need to accomplish a professional-level oil change, with specific callouts for the DR-Z400SM’s unique features, and makes sure your dual-sport stays ready for adventure. Use this guide for the SM and S variants, as their procedures are virtually identical.

Tools & Supplies You’ll Need

  • Ratchet
  • 8mm, 12mm, and 17mm sockets
  • Torque wrench
  • Drain pan
  • Funnel
  • Rags/paper towels
  • Gloves and safety glasses
  • OEM or quality replacement oil filter (Hiflofiltro HF139 is a common choice)
  • Fresh 10W-40 motorcycle oil (You’ll need a bit less than 2 quarts, consult your manual if in doubt)
  • Replacement drain bolt washers (recommended)

Important 2022 DR-Z400SM Specifics

  • First oil change is required after 600 miles. Thereafter, perform oil changes every 3,500 miles or one year, whichever comes first.
  • Design remains largely unchanged from the 2000s DR-Z400 models, so procedure is similar across model years. Consult your Suzuki service manual for model-specific torque specs or updates.
  • There are two oil drain bolts – one on the crankcase, and one on the frame–both must be drained.

Step-by-Step: Changing the Oil on a 2022 DR-Z400SM

  1. Warm Up the Engine.
    • Let the bike idle for a few minutes. Warm oil flows faster, allowing more complete drainage.
  2. Secure the Motorcycle.
    • Park on level ground and use a bike stand or center stand for stability.
    • Turn off the ignition and allow exhaust parts to cool to avoid burns.
  3. Remove the Oil Filler Cap/Dipstick.
    • Find it on top of the frame, near the fuel tank. Removing this allows air in and helps oil drain more smoothly

      .
  4. Drain the Crankcase Oil.
    • Place the drain pan directly below the crankcase.
    • Use a 17mm socket to remove the crankcase drain bolt and its washer at the base of the engine.
    • Let the oil drain completely. Inspect the bolt and replace the washer if damaged

      .
  5. Drain the Oil from the Frame Reservoir.
    • Move your drain pan under the lower frame tube (just ahead of the engine).
    • Use a 12mm socket to remove the frame drain bolt and washer.
    • Allow the frame oil to drain fully

      .
  6. Inspect and Replace Washers.
    • Check both drain bolt washers for wear. Replace if they appear crushed or damaged. Failure to replace can result in leaks

      .
  7. Reinstall Drain Bolts.
    • Hand-thread drain bolts to avoid cross-threading, then torque each to spec (15 ft-lbs for crankcase) using your torque wrench

      .
  8. Replace the Oil Filter.
    • Use an 8mm socket to remove the three bolts securing the oil filter cover (right side of engine).
    • Remove the cover and old filter. Carefully clean the filter seat and check the O-ring for cracks; replace if needed.
    • Install the new filter (make sure it’s facing the correct orientation per manual) and reinstall the cover, tightening bolts evenly.
  9. Refill with Fresh Oil.
    • Insert funnel into the oil filler neck atop the frame.
    • Pour in 10W-40 motorcycle oil (consult your manual for exact volume; generally around 1.9 quarts with filter change

      ).
    • Reinstall and tighten the oil filler cap/dipstick.
  10. Check for Leaks and Final Oil Level.
    • Start the engine and let it idle for a minute. Check for leaks at filter cover and drain bolts.
    • Shut off engine, wait a couple of minutes for oil to settle, and check oil level with the dipstick. Adjust as needed.
    • Wipe away any spilled oil, properly dispose of used oil/filter.

Owner’s Tips & Call-Outs for the 2022 DR-Z400SM

  • Don’t over-tighten the oil filter cover or drain bolts. Use a torque wrench – overtightening can strip threads or crack covers.
  • Two drain points: Skipping either drain bolt leaves dirty oil in your system. Always remove both for a full change.
  • If replacing the filter, always check the filter cover O-ring. An old, cracked O-ring can cause leaks and engine damage.
  • Use only high-quality 10W-40 motorcycle oil that meets JASO MA/MA2 specs for wet clutch compatibility, as the DR-Z’s clutch shares the engine oil.
  • Initial service interval is critical. The first post-break-in (600 mile) oil change removes wear particles; don’t skip it.
  • If you frequently ride hard or in dusty/muddy conditions, consider shorter oil change intervals.

Torque Specs for the 2022 Suzuki DR-Z400SM

  • Crankcase drain bolt: 15 ft-lbs
  • Frame drain bolt: 14.5 ft-lbs (Check manual for confirmation)
  • Oil filter cover bolts: 7 ft-lbs

Conclusion

Changing your 2022 Suzuki DR-Z400SM’s oil is simple with the right tools and approach. Following these steps prevents oil leaks, extends engine life, and helps spot potential issues early. For more OEM parts, tools, and advice, always trust MotoSport.com—your authority for everything dirt bike.

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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.