How to change the oil in a 2015 Suzuki DRZ400S Dirt Bike

How to Change the Oil in a 2015 Suzuki DR-Z400SM

Shop parts for a 2015 Suzuki DR-Z400SM Dirt Bike.

Changing the oil in your 2015 Suzuki DR-Z400SM is a crucial part of regular maintenance, ensuring optimal engine performance and longevity. This step-by-step guide, proprietary to MotoSport.com, covers the tools you'll need, detailed procedures, and expert tips specific to this model.

Tools and Materials Needed

• Ratchet
• 8mm, 12mm, and 17mm sockets
• Torque wrench
• Drain pan
• Funnel
• Gloves and rags (for safety and cleanup)
• New oil filter
• Washer(s) for drain bolts (replace if necessary)
• 10W-40 motorcycle oil (2 quarts, see callout below for exact volume)

Important Model-Specific Notes

• The DR-Z400SM features two drain plugs: one at the bottom of the engine (crankcase) and another on the lower part of the frame. Both must be removed to drain all the oil from the system.
• The oil capacity is 1.8 liters (1.9 quarts) with a filter change and 1.7 liters (1.8 quarts) without changing the filter. Avoid overfilling, as it can lead to engine issues.
  Tip: It's better to start with less oil and add more as needed after checking the level.
• The 2015 model shares its oil change procedure with most DR-Z400S/SM versions from previous years, but always check your owner's manual for the latest torque specs and maintenance intervals.

Step-by-Step Oil Change Procedure

• Warm up the engine.– Run the bike for a few minutes until it reaches normal operating temperature. This helps the oil flow more easily and removes more contaminants.
• Remove skid plate (if equipped).– If your DR-Z400SM has a skid plate, remove it to access the drain bolts more easily.
• Remove the oil filler cap and dipstick.– Unscrew the oil filler cap/dipstick located on the top of the frame. This allows the engine to vent and the oil to drain more completely.
  Model Note:– The DR-Z400SM's frame doubles as part of the oil circuit, so venting is critical for complete draining.
• Position the drain pan under the crankcase.
• Remove the crankcase drain bolt and washer.– Use a 17mm socket to remove the drain bolt from the bottom of the crankcase. Let the oil fully drain.
• Inspect the drain plug washer (replace if needed).– If the washer is damaged or heavily compressed, replace it to prevent leaks.
• Reinstall the crankcase drain bolt and washer.– Tighten to 15 foot-pounds using a torque wrench.
• Move the drain pan under the frame drain bolt.
• Remove the frame drain bolt and washer.– Use a 12mm socket to remove the drain bolt at the lower part of the frame. Allow remaining oil to fully drain.
  Tip:– This is a model-specific step for the floating frame oil circuit on the DR-Z400SM.
• Inspect and reinstall frame drain bolt and washer.– Replace washer if necessary and torque the bolt to manufacturer specs.
• Remove the oil filter cover bolts (8mm) and the oil filter.– Tilt the bike upright or use a stand for stability. Remove the cover, take out the old filter, and wipe the filter seat clean.
• Install the new oil filter.– Lubricate the new filter's rubber gasket with some fresh oil and install. Reattach and torque the cover bolts (do not overtighten.)
• Pour in new oil.– Using a funnel, fill the engine with 1.8L (if you changed the filter) or 1.7L (oil only) of 10W-40 motorcycle oil.
  Tip:– Pour about two-thirds first, then run the engine briefly before topping off to ensure the correct level.
• Reinstall the dipstick (do not thread in) and check oil level.– After running the bike for a minute and shutting it off, let it sit, then recheck the oil level by inserting the dipstick without screwing it in.
• Top off if necessary.– Add oil as needed to reach the correct level. Avoid overfilling.
• Check for leaks.– Inspect each drain bolt and the oil filter area for leaks before reinstalling the skid plate (if removed).
• Dispose of old oil and filter responsibly.– Take used oil and filters to your local automotive recycling center or MotoSport.com authorized recycler.
• Record the maintenance.– Note the mileage and date of your oil change for future reference.

Special Tips for the 2015 DR-Z400SM

• The DR-Z400SM, like all DR-Z400 models, has a hidden frame oil filter screen (accessible for cleaning if you desire a thorough service, though not required at every oil change)
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• Oil and filter changes are recommended every 3,500 miles as per Suzuki. First oil change should occur at 600 miles
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• Check for leaks after riding for a few miles post-change.
• Always use motorcycle-specific oil and filters to ensure compatibility with your engine and clutch.

Conclusion

Changing the oil in your 2015 Suzuki DR-Z400SM is a straightforward process with the right tools and some attention to detail. Following these steps increases engine longevity and ensures better performance on- and off-road. For parts, supplies, and more how-to guides, visit MotoSport.com.

Related Shopping Categories

Shop Motor Oil for a 2015 Suzuki DR-Z400SM Dirt Bike.

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Shop Oil Drain Pans for a 2015 Suzuki DR-Z400SM Dirt Bike.

Shop Tools for a 2015 Suzuki DR-Z400SM Dirt Bike.

Shop Oil Fillers and Drain Plugs for a 2015 Suzuki DR-Z400SM 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.