How to Change the Oil in a 2022 Beta 390 RR-S: Step-by-Step MotoSport Guide
Shop Parts for a 2022 Beta 390 RR-S Dirt Bike!
Performing an oil change on your 2022 Beta 390 RR-S is essential for top performance – and it takes just a few tools, the right fluids, and a bit of model-specific know-how. This dual-chamber Beta uses separate engine and transmission oil systems, a feature unique to Beta’s larger four-stroke RR-S range. Follow these proprietary MotoSport steps for a hassle-free oil change every rider can handle.
Required Tools & Supplies
- 13 mm socket & ratchet
- 8 mm socket or T-handle
- Drain pan
- New oil filter
- New O-rings for filter cover, engine & transmission drain bolts
- Metric torque wrench
- Liqui Moly 10W-50 or Beta-recommended oil
- Measuring cup (for precise oil fill)
- Clean rags
Proprietary MotoSport Oil Change Procedure
- Start the engine and let it run for 2-3 minutes. This warms the oil for better draining.
- Remove the skid plate, if equipped, to access the engine and transmission drain bolts.
- Place your drain pan under the bike.
- Remove both 8 mm oil filter cover bolts. Ease off the cover and allow oil to drain from the filter cavity.
- Pull out the old oil filter and discard the cover o-ring. Leave the cavity uncovered during main draining.
- Remove the engine oil drain bolt with your 13 mm socket. Allow all engine oil to drain completely.
- Remove the transmission oil drain bolt and let that oil drain as well.
- Inspect & replace the O-rings for the engine and transmission drain bolts with new ones. This is critical for a leak-free seal.
- Reinstall and torque the engine drain bolt to 15 Nm and the transmission drain bolt to 20 Nm.
- Install a new oil filter. Ensure the open end faces the engine – not the cover.
- Fit a new oil filter cover o-ring, replace the cover, and tighten its bolts to 10 Nm.
- Fill with 750 ml of oil on both the engine and the transmission side. Use a measuring cup for precision – a common mistake is overfilling or underfilling this Beta.
- Install new oil filler cap O-rings and tighten the caps securely.
- Start the motor and run for 2 minutes. Let the oil circulate, then shut off and let the bike sit for a couple of minutes. Verify oil levels with the sight glass while the bike is upright – the level should be in the middle of the viewing window.
- Check for leaks and re-install your skid plate.
2022 Beta 390 RR-S: Owner’s Model Notes
- This bike uses two separate oil compartments: one for the engine, one for the transmission. Oil must be changed in both at every service interval.
- Engine oil capacity is 750 ml, same for the transmission. Unlike some earlier Betas, do not exceed 800 ml in either chamber – overfilling can foam and starve critical parts.
- The oil sight glass is for the engine side only. Typical sight glass readings may vary after initial fill, so always check after running the engine and allowing the oil to settle.
- Use high-quality 10W-50 fully synthetic oil as recommended by Beta for the best clutch performance and engine durability, particularly if you ride hard or in hot conditions.
- Check O-rings for deformation or flat spots at every service – small leaks are most often traced to neglected O-rings.
- If you drain notably less than 750 ml from either side, check for leaks or overdue intervals.
By following these MotoSport oil change instructions specific to the Beta 390 RR-S, you safeguard both engine and transmission longevity. Always dispose of used oil responsibly, and consult your Beta owner’s manual for further service tips.
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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.