How to Change the Oil in a 2017 Beta 390 RR-S

Shop parts for a 2017 Beta 390 RR-S Dirt Bike!

Keeping your 2017 Beta 390 RR-S running strong means regular maintenance, and an oil change is one of the most critical jobs for longevity and performance. This guide provides a model-specific, step-by-step process tailored for the dual chamber engine and transmission oils unique to Beta's RR-S four-stroke line. Familiarity with the model's split oil system is essential to avoid costly mistakes and get the most out of every ride.

Tools & Supplies Needed

  • 8mm and 13mm sockets
  • Drain pan
  • New oil filter (recommended with every other change)
  • New O-rings for oil filter cover, engine drain bolt, and transmission drain bolt
  • Torque wrench
  • Liqui Moly 10W-50 or equivalent full synthetic motorcycle oil (at least 1.5 liters)
  • Clean shop rags

Step 1: Prep the Bike

  • Ensure the engine is slightly warm for better oil flow, but never hot to avoid burns.
  • Place the bike securely on a stand and remove the skid plate to access drain points.

Step 2: Drain Engine Oil

  • Locate the engine oil drain bolt and remove it using a 13mm socket, letting the oil fully drain into your pan.
  • While draining, remove the oil filter cover (8mm bolts), followed by the filter and cover O-ring. Leave it open to assist drainage and inspect the filter for debris or contamination.

Step 3: Drain Transmission Oil

  • Identify the transmission oil drain bolt (also accessed from underneath) and remove it to let all transmission oil drain out.

Step 4: Install New Filter & O-rings

  • Replace the oil filter, ensuring the open end faces the engine and the solid end faces the filter cover for proper oil flow.
  • Change out all related O-rings (filter cover, engine and transmission drain bolts) to prevent leaks.

Step 5: Reinstall Drain Bolts & Cover

  • Torque the engine drain bolt to 15 Nm and the transmission drain bolt to 20 Nm.
  • Install the oil filter cover with the new O-ring, tighten bolts to 10 Nm.

Step 6: Add Fresh Oil

  • Fill the engine oil compartment with 750 ml of 10W-50 full synthetic motorcycle oil.
  • Fill the transmission compartment with 750 ml of the same oil.
  • Replace oil filler caps using new O-rings for added security.
  • Start the bike, run it for a minute, then shut it off and double-check levels using the sight glass, aiming for halfway up the glass.
  • Add a small amount of oil if needed, never overfilling past the top of the sight glass overfilling is a common mistake and can cause pressure and leaks.

2017 Beta 390 RR-S Specifics & Tips

  • This model features separate engine and transmission oil chambers never mix up the compartments or use the wrong quantity to avoid catastrophic engine failure.
  • Recommended oil change interval is every 10-20 hours of riding or after any race/extreme use. More frequent changes are advised in harsh conditions.
  • Beta RR-S models have tight tolerances; always use high-quality synthetic oil, and never reuse O-rings to guarantee sealing integrity.
  • If you spot significant metallic debris in the drained oil or filter, consult a mechanic; excessive wear signs mean you might need further inspection.
  • Always dispose of old oil and filters responsibly at a certified recycling center.

With this oil change, your 2017 Beta 390 RR-S will be ready for reliable performance, both on and off-road. Regular maintenance is the key to making the most of your ride – and for all your Beta-specific parts and fluids, Shop parts for a 2017 Beta 390 RR-S 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.