How to Change the Oil in a 2018 Beta XTRAINER: MotoSport.com Guide

Shop parts for a 2018 Beta XTRAINER Dirt Bike!

The 2018 Beta XTRAINER is valued for its versatility and approachable handling, but like any dirt bike, regular oil changes are crucial for smooth operation – especially considering the unique transmission and two-stroke design. Here's MotoSport's proprietary step-by-step guide for changing the oil on your 2018 XTRAINER, with model-specific insights included.

What You'll Need

  • Transmission oil: Motul Transoil Expert 10W40 or equivalent high-quality oil
  • Oil drain pan
  • Socket or wrench set
  • Funnel with a narrow spout
  • Measuring container
  • Replacement washer for drain plug (recommended)
  • Lint-free rag
  • Torque wrench (for reinstallation)

Oil Capacity & Maintenance Notes

  • Oil capacity: 0.85 liters (850 ml) for the transmission.
  • Unlike many four-strokes, the XTRAINER two-stroke engine needs only transmission oil. The engine itself is supplied by premix (oil injected or premixed with fuel).
  • Changing oil every 20–30 hours is recommended for general trail riding; more often for aggressive or wet conditions.

Step-by-Step Oil Change Instructions

  1. Warm up the engine for a few minutes. This helps the oil drain out smoothly by reducing viscosity.
  2. Secure the bike on a level stand. Ensure stability before starting the process.
  3. Locate the oil drain bolt behind the brake pedal on the right side of the engine case. You may need to press the brake pedal down for better access.
  4. Place your oil pan under the drain area. Remove the fill plug (on top of the case near the front of the engine) and oil drain plug. Allow all oil to completely drain. Tilting the bike slightly right can help clear out residual fluid.
  5. Inspect the drain plug for debris and replace the washer if damaged.
  6. Reinstall the drain plug and tighten it to the specified torque (check your service manual for torque spec).
  7. Using a funnel, add 0.85 liters (850 ml) of fresh transmission oil into the fill port. Measure accurately – too much or too little affects shifting and clutch feel.
  8. The XTRAINER features a level check screw on a rounded boss just below the fill cap area. With the bike upright, if oil just starts to ooze from this port when filling, you have the correct level. However, always use the measured quantity as your primary method.
  9. Reinstall the fill cap and check for leaks. Wipe away any excess oil.

XTRAINER Owner Tips

  • Oil Changes Can Seem Low: Some owners report less than 850 ml comes out during draining. This is normal (due to residual oil), but replace the full 850 ml each time for optimum transmission protection.
  • Use Recommended Oil Only: The XTRAINER is engineered for specific oil grade – using unsuitable oil can affect clutch and gearbox longevity.
  • Check Oil Glass (If Equipped): A quick glance can help monitor ongoing oil condition and level between changes.
  • No Engine Oil: Don't add oil to the crankcase – only to the transmission. Engine lubrication depends on two-stroke oil delivered via injection or premix in fuel.

Final Checks

  • Start the motorcycle and idle for a few minutes. Check for leaks at the drain and fill plugs.
  • Shift through gears to confirm smooth operation before your next ride.

Keeping up with regular transmission oil changes ensures your 2018 Beta XTRAINER continues to deliver reliable performance across every trail. For all your maintenance needs and genuine replacement parts, MotoSport has you covered.

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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.