How to Change the Oil in a 2013 Beta 400 RS: Step-by-Step Guide

Shop parts for a 2013 Beta 400 RS Dirt Bike!

Maintaining your 2013 Beta 400 RS is essential for reliable performance and longevity. Changing the oil is a fundamental task and this guide is fine-tuned for owners of this unique MMY dirt bike. Here&s everything you need for a safe, complete oil change.

What Makes the 2013 Beta 400 RS Oil Change Unique?

  • No dipstick or traditional check method–The Beta 400 RS relies on precise oil quantities, not check bolts or sight glasses, for correct fill levels. Always measure your oil volume when refilling.
  • Dual drain bolts–Both engine and transmission cases must be drained and refilled. These processes are nearly identical across Beta 4-stroke models, so procedures for the 350, 390, 430, and 500 apply to your 400 RS as well.
  • Special filter maintenance–Always replace the paper filter and clean the wire netting filter with each oil change to protect engine integrity.

Tools & Supplies Needed

  • Engine oil: 10W-50 full synthetic (check exact spec per your manual)
  • Oil filter (paper element and wire mesh)
  • Drain pan
  • Socket set or wrench
  • Torque wrench (for drain bolts)
  • Clean rags
  • Safety gloves

Step-by-Step Oil Change Instructions

  1. Warm Up the Engine
    Run your Beta 400 RS for a few minutes until operating temperature is reached. This ensures the oil drains completely and carries away contaminants.
  2. Prepare Your Work Area
    Park the bike on a level surface. Remove the lower skid plate to access the drain bolts.
  3. Drain the Engine & Transmission Oil
    Locate and remove both engine and transmission drain bolts. Allow oil to drain fully into your pan. Take care—oil and engine may be hot.
  4. Service the Oil Filters
    Remove the paper oil filter by unscrewing the filter cap. Use circlip pliers if necessary. Clean the wire mesh filter thoroughly with a clean, lint-free cloth and a safe solvent. Install a new paper filter or an oil change kit for complete protection.
  5. Reinstall Drain Bolts & Filters
    Replace both drain bolts after cleaning their threads and mating surfaces. Use new crush washers or O-rings as specified. Torque to manufacturer specs—typically 20 Nm for drain bolts, 6 Nm for filter cap.
  6. Refill the Oil
    Pour in the recommended amounts:
    • Engine: 750cc (some sources say 800ml—always consult your manual for final spec)
    • Transmission: 750cc
    Do not overfill or use the check bolt as a fill gauge–simply measure the oil volume precisely and add it. Beta manuals conflict on using the check bolt, but expert dealers recommend skipping it and trusting your measured volume.
  7. Run the Bike & Inspect
    Start the engine and let it idle for five minutes. Shut off and inspect for leaks around the filter cap and drain bolts. Check oil level through the sight window (if equipped) but remember, correct volume is key.
  8. Dispose of Oil Properly
    Used oil is hazardous. Take it to a certified recycling center.

Critical Tips for Beta 400 RS Owners

  • Avoid over-torqueing the drain bolts–these are aluminum cases where stripped threads are expensive and problematic.
  • Always replace oil filters with each oil change: both paper and wire mesh varieties.
  • Recheck for leaks after your first ride post-change.
  • Oil capacity matters, not check bolts or sight gauges–use precise measurement for refills.
  • Legal disposal is required—follow regulations for used oil.

Your 2013 Beta 400 RS has performance in its DNA, but it depends on fresh oil and clean filters for every adventure. Keep your dirt bike running at its best by following this precise MotoSport oil change process every time.

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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.