How to Change the Oil in a 2023 Beta 350 RR: Step-by-Step Guide
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The 2023 Beta 350 RR is built for rugged off-road performance, and keeping its engine oil and transmission oil fresh is essential to maximize longevity and power. Changing oil on this dirt bike has its unique process, especially because the engine and transmission use separate oil chambers. Below is an exclusive MotoSport oil change guide specific to your 350 RR – follow these steps and notes to keep your machine race-ready.
Required Tools and Supplies
- 13 mm socket or wrench
- Drain pan
- New engine oil (Liqui Moly 10W-50 or equivalent, minimum JASO MA2 spec)
- New transmission oil (same as above)
- New oil filter
- New oil filter cover O-ring and drain bolt O-rings
- 8 mm socket for filter cover
- Torque wrench
- Rags or shop towels
Oil Change Procedure for 2023 Beta 350 RR
- Warm up your bike – Run the engine for 2-3 minutes to thin the oil, helping it drain completely.
- Remove skid plate if installed. This grants better access to the drain bolts and oil filter cover.
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Drain the engine oil –
- Position the drain pan under the engine.
- Use the 13 mm socket to remove the engine oil drain bolt. Allow all oil to drain out. Replace the O-ring on the drain bolt if worn.
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Drain the transmission oil –
- Locate the separate transmission drain bolt and remove with your socket. Allow all transmission oil to drain. Replace its O-ring.
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Remove the oil filter cover –
- Take out both 8 mm bolts securing the oil filter cover. Be cautious, as some remaining oil will drain here.
- Remove the oil filter and cover O-ring. Leave the cover off briefly to aid full drainage.
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Install a new oil filter and new O-rings –
- Insert the new filter: the open end faces inward toward the engine, the solid end faces the cover.
- Fit a new O-ring on the cover, then reinstall the cover. Tighten bolts to 10 Nm.
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Reinstall drain bolts –
- Fit new O-rings if needed, and tighten the engine drain bolt to 15 Nm, transmission bolt to 20 Nm.
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Refill both oil compartments –
- Engine side: Add 750 ml of approved oil.
- Transmission side: Add 750 ml of approved oil.
- Install new oil filler cap O-rings if supplied. Tighten these caps securely.
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Check oil levels –
- Start the bike and let idle for 2 minutes.
- Engine oil level: The 350 RR is special—you must check the engine side oil while the engine is running. The level should rest at the center of the sight glass. Add oil if needed.
- Transmission oil level: Shut off the bike. Check using the transmission check bolt. Oil should just reach the base of the threads.
- Inspect for leaks – Run the engine and look around the filter, drain bolts, and fill caps for any oil seepage.
Special Notes & Tips for the 350 RR Model Owner
- The 2023 Beta 350 RR uses separate engine and transmission oil capacities for optimal gearbox and clutch health. Don't ever share or mix the fluids.
- Always use the sight glass to check engine oil. For this model, it is factory procedure to check engine oil with the engine running and warm—not off (unlike most other brands). Oil at the middle of the window ensures the correct fill.
- Low oil after filling is normal on this model due to oil circulation after startup; always recheck after warming up.
- Replace O-rings whenever possible to avoid leaks. Proper torque is vital to prevent stripping the soft aluminum case.
- Stick to a 10-hour oil change interval in harsh conditions, or every 300 miles, whichever comes first.
Your 2023 Beta 350 RR is now ready to handle whatever the trail throws at it with fresh oil & filter. Always keep OEM parts handy for stress-free maintenance and peak dirt bike performance.
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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.