How to Change the Oil in a 2016 Beta 350 RR: MotoSport Proprietary Guide

Shop parts for a 2016 Beta 350 RR Dirt Bike!

If you own a 2016 Beta 350 RR, getting routine oil changes right is a cornerstone of reliable performance – and a vital part of keeping your Italian stallion ready for the next adventure. This bike has some unique quirks compared to other four-strokes, so follow these proprietary MotoSport instructions for efficient, accurate oil changes designed specifically for your model.

Required Tools & Supplies

  • 13 mm socket (engine drain bolt)
  • Catch pan
  • 8 mm socket (oil filter cover bolts)
  • Replacement oil filter and o-rings
  • Liqui Moly 10W-50 or manufacturer-recommended oil
  • Torque wrench

Preparation

  • Run the engine for 2 minutes to warm the oil – this helps ensure complete drainage.
  • Park the bike upright and stable on a flat surface.
  • Remove the skid plate to access the drain bolts.

Drain Engine Oil

  • Place your catch pan under the engine.
  • Remove both 8 mm oil filter cover bolts.
  • Take out the oil filter and the cover o-ring.
  • Remove the engine oil drain bolt with a 13 mm socket – allow oil to drain completely.

Drain Transmission Oil

  • Locate the transmission oil drain bolt and remove it. Drain the transmission oil into the pan.

Replace Filter and Bolts

  • Install a new oil filter – open end faces the engine, solid end faces the filter cover.
  • Inspect and replace the oil filter cover o-ring as needed, reinstall cover and tighten to 10 Nm torque.
  • Install new o-rings on both the engine and transmission drain bolts.
  • Reinstall the engine drain bolt and torque to 15 Nm.
  • Reinstall the transmission drain bolt and torque to 20 Nm.

Refill Oil

  • Pour 750 ml of new oil into the engine side, and 750 ml into the transmission side.
  • Replace the oil filler cap o-rings and tighten the caps securely.

Check Oil Level — Beta-Specific Tips

  • Run the engine for 2 minutes, then let it settle for a few seconds.
  • For the engine oil: While running, oil should be visible in the center of the sight glass window. This differs from other makes that check oil when the engine is off—this is Beta's official method for accurate reading.
  • For the transmission oil: Use the check bolt; oil should just reach the bottom of the threads. Top off as needed.

Important Notes for 2016 Beta 350 RR Owners

  • The engine and transmission use separate oil circuits – never mix up fill locations.
  • Oil level in the sight glass fluctuates with engine temperature and after rides – always check as specified above.
  • Use factory-spec oil weights. Beta recommends 10W-50 for optimal clutch and gear performance.
  • Replace all o-rings each oil change to avoid leaks and contamination.
  • Tighten all bolts using a torque wrench. Overtightening can crack covers or strip threads.

The Beta 350 RR is known for its dual oil compartments, easy-access filters, and robust performance. Following the prescribed oil change schedule – and using MotoSport for your maintenance parts – keeps your ride smooth and trail-ready. Regular care preserves the signature Italian handling and ensures long-lasting engine health.

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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.