How to Change the Coolant in a 2015 Beta 350 RR Race Edition

Shop parts for a 2015 Beta 350 RR Race Edition Dirt Bike.

The Beta 350 RR Race Edition is a high-performance dirt bike designed for aggressive riding, and maintaining the cooling system is vital for optimal engine performance. Routine coolant changes prevent overheating, corrosion, and internal damage – especially important for race-tuned models like the 350 RR Race Edition. Below is a proprietary, step-by-step MotoSport guide specific to your 2015 Beta 350 RR Race Edition.

Tools & Supplies You Will Need

  • Fresh motorcycle coolant (refer to the Beta manual for recommended type)
  • Socket set or wrenches
  • Drain pan
  • Funnel
  • Clean rags
  • Protective gloves and eyewear

Step-by-Step Coolant Change Procedure

  1. Ensure Safety and Prepare the Bike
    Let the engine cool completely before starting to prevent burns. Keep the bike upright and stable on a stand. Removing the seat and left radiator shroud will help improve access.
  2. Access the Radiator Cap
    Unscrew the radiator cap slowly to release any residual pressure (never do this while hot). The radiator cap is on the left side behind the shroud, near the steering head.
  3. Drain the Old Coolant
    Place your drain pan beneath the water pump cover (right side of engine), then locate and remove the coolant drain bolt (typically at the lowest point of the water pump cover) along with its sealing washer. Some models feature an additional bleed screw on the cylinder or thermostat cover for more thorough draining.
    Allow coolant to fully drain. To improve drainage, tilt the bike side-to-side gently.
  4. Replace the Drain Bolt and Washer
    Once drained, install the drain bolt with a fresh sealing washer for a secure fit. Tighten to the specified torque if you have a torque wrench (check your service manual).
  5. Refill with Fresh Coolant
    Using a funnel, slowly pour the recommended coolant into the radiator until it reaches the base of the filler neck. The 350 RR system capacity is about 1.3L.
    Use only the coolant recommended by Beta for the 350 RR Race Edition—never mix types, and do not use tap water to dilute.
  6. Bleed the System
    Air pockets decrease cooling efficiency. With the radiator cap off, start the engine and allow it to idle for 1–2 minutes, gently rocking the bike side to side. Then shut off and check coolant level. Top off as needed. Reinstall the radiator cap securely.
  7. Check for Leaks and Test
    Inspect around the drain bolt and hose joints for leakage. Run the engine until it reaches normal temperature. After cooling, confirm coolant is at the correct level.
  8. Dispose of Used Coolant Properly
    Collect old coolant in a sealed container and bring it to a recycling or hazardous waste facility. Do not pour it down the drain or onto the ground.

350 RR Race Edition Tips & Important Information

  • Only change coolant when the engine is totally cold – opening the radiator cap hot can cause burns.
  • Beta specifies a particular coolant type for aluminum engines – using incompatible coolant can cause corrosion or system failure. Always check your manual for recommended products.
  • Inspect and clean your radiator fins and hoses during service. The 350 RR Race Edition’s power can push the cooling system hard, so keep airways clear and hoses firm with no soft spots.
  • Flush the system entirely every two years, or yearly if you race or ride in harsh conditions. Top off before major events.
  • Wear gloves and eye protection – coolant is toxic and should not contact your skin or eyes. Keep away from children and pets.

Maintaining High-Performance Beta Reliability

The 2015 Beta 350 RR Race Edition’s advanced engine and lightweight aluminum radiator place extra importance on effective cooling. Proactive attention to coolant quality and level safeguards your investment – and extends the life of your high-performance dirt bike whether at the track, trail, or in competition.

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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.