How to Change the Oil in a 2017 Suzuki RM85: Step–by–Step Guide

Shop parts for a 2017 Suzuki RM85 Dirt Bike.

Keeping up with routine oil changes is essential to maintaining the performance and longevity of your 2017 Suzuki RM85. This guide is proprietary to MotoSport.com, crafted for clarity and confidence whether you're a first–timer or a seasoned rider. Changing the transmission oil on your RM85 is a straightforward process — just follow the directions below for a clean and effective oil change, and take note of RM85–specific details along the way.

Tools and Supplies Needed

  • Wrench set (including a wrench capable of tightening to 23 N·m or 16.5 lb–ft)
  • Socket set
  • Oil catch pan
  • Clean rags or shop towels
  • Funnel
  • Measuring cup or container (min. 550 ml capacity)
  • SAE 10W-40 engine oil (meeting API SG, SH, SJ, SL, SM, or SN and JASO MA/MA1/MA2)
  • Gloves (optional for cleaner hands)

Preparation

  • Start your bike and let the engine idle for several minutes to warm up the oil. This thins out the oil, making it easier to drain completely and carry contaminants away.
  • Shut off the engine and wait about 5 minutes so you don't risk burns from hot oil or exhaust components.
  • Place the motorcycle securely on level ground, keeping it upright and vertical.

Step–by–Step Instructions

  1. Remove Oil Filler Cap and Drain Plug
    • With your oil catch pan in place under the engine, remove the oil filler cap at the top of the right side of the crankcase. This allows the oil to drain out more smoothly.
    • Using the appropriate wrench/socket, remove the drain plug from the bottom of the crankcase. Beware the oil may still be warm.
    • Allow the oil to drain completely — tilt and gently rock the bike upright if needed so no old oil remains.
  2. Reinstall the Drain Plug
    • Inspect the drain plug's sealing washer or O–ring. Replace it if it's worn or damaged — a small detail, but it prevents leaks.
    • Reinstall the drain plug and torque to 23 N·m (16.5 lb–ft). Do not overtighten — cracked cases are expensive to repair.
  3. Pour in Fresh Oil
    • Measure out 550 ml (1.2 US pts) of SAE 10W-40 motorcycle oil that meets Suzuki's requirements.
    • Place a funnel into the filler opening and pour the oil in slowly, ensuring no spills.
    • Reinstall the filler cap securely once finished.
  4. Warm Up the Engine and Check Oil Level
    • Start up the engine and let it run for several minutes to circulate the oil throughout the transmission.
    • Shut the engine down and wait a few minutes for oil to settle.
    • Hold the bike upright and remove the oil level check screw (located on the right crankcase cover). Oil should just begin to drip out.
    • If no oil comes out, add a small amount more (via the filler cap), replace the check screw, and check again. Repeat as needed.
    • Tighten both the oil filler cap and oil level screw firmly when done — torque check screw to 5.5 N·m (4.0 lb–ft).
  5. Wipe Down and Dispose of Old Oil Properly
    • Clean off any oil that may have spilled on the engine or frame.
    • Dispose of the old oil in accordance with local environmental regulations.

2017 Suzuki RM85–Specific Callouts

  • Always use oil that meets Suzuki's requirements: SAE 10W-40 with API SG–SN and JASO MA/MA1/MA2. Lower grades or automotive–only oils can cause clutch slippage or excess wear.
  • Transmission oil capacity is 550 ml. Do not overfill; this can cause leaks or drag in the clutch and transmission.
  • Check for the presence and condition of O–rings on the filler and drain screws. Worn or missing O–rings risk oil leaks and contamination.
  • Always let the bike sit upright when checking levels. On the side stand, oil readings will be inaccurate.
  • If you ride or race aggressively, consider changing transmission oil after every 5–10 hours of riding for maximum protection.
  • The drain plug and oil filter cap must be firmly tightened — but never overtightened. Cracked or stripped threads are a common hazard if force is applied excessively.
  • Never overlook oil change intervals. Dirty or low oil can quickly damage the transmission and clutch components — routine maintenance is cheap insurance.

Final Inspection

  • Take your RM85 for a brief ride. Shift through all gears and engage the clutch to ensure smooth operation.
  • Park the motorcycle, wait a few minutes, and check for any oil leaks under the engine.
  • Re–inspect the oil level after the ride, adjusting as necessary following the same procedure.

Conclusion

  • Changing the oil in your 2017 Suzuki RM85 is crucial for reliable operation and top performance. By following these steps and Suzuki's specifications, you'll be set for hours of trouble–free riding. Always choose quality oil, keep your tools clean, and check your work — and your RM85 will reward you with lasting service.

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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.