How to Change Coolant in a 2020 Beta 125 RR Race: Step-By-Step Owners Guide

Shop parts for a 2020 Beta 125 RR Race Dirt Bike.

Owning a 2020 Beta 125 RR Race means getting the most out of a high-performance, lightweight two-stroke engineered for competition. Routine maintenance, especially the cooling system, is vital for performance as well as reliability. This detailed guide will show you how to change the coolant on your 2020 Beta 125 RR Race – with proprietary tips every Beta owner should know.

Why Change Coolant Regularly?

Coolant is essential for regulating engine temperature, preventing overheating, and protecting internal passages from corrosion or deposits. For hard-ridden race models like the Beta 125 RR Race, annual coolant changes or replacing after intense use is strongly recommended.

Tools and Supplies Needed

  • Fresh, high-quality motorcycle coolant (pre-mixed or mix to spec)
  • Screwdriver or socket set
  • Drain pan
  • Funnels and rags
  • Protective gloves

Step 1: Prepare the Bike

  • Ensure the engine is completely cool before beginning to avoid injury or damage.
  • Stabilize the motorcycle upright on a stand or flat surface.
  • Remove the seat and side panels (if needed for access).

Step 2: Access and Open the Radiator Cap

  • Remove the radiator cap slowly to release pressure while the engine is cold.
  • Wipe away any debris near the radiator fill neck before removing the cap.

Step 3: Drain the Old Coolant

  • Locate the coolant drain bolt on the bottom of the water pump cover or the lowest radiator hose connection.
  • Position a drain pan underneath, then loosen the drain bolt and allow the old coolant to fully drain.
  • Carefully remove the coolant drain bolt; also loosen the radiator cap if you haven't already to allow thorough draining.
  • Inspect the spent coolant for signs of oil contamination – cloudiness or separation can indicate seal issues that may require further inspection.

Step 4: Flush (Optional but Recommended)

  • If the system is dirty or coolant appears contaminated, flush by running clean water through the radiator and engine passages.
  • Replace and tighten the drain bolt and ensure all connections are secure after flushing.

Step 5: Refill With New Coolant

  • Slowly pour new coolant into the radiator until the fluid level is just above the internal core or fins.
  • If your Beta 125 RR Race does not have a dedicated bleeder screw (most 2020+ Beta models do not), carefully rock the bike side-to-side and gently squeeze the bottom radiator hose to help purge trapped air.

Step 6: Bleed the System of Air

  • With the radiator cap off, start the engine and let it idle briefly. Watch the coolant level – add more if it drops as air burps out.
  • If equipped, momentarily crack open the highest hose clamp to release trapped air, then retighten. Early RR models may have a bleeder screw; for 2020 and newer, careful rocking and hose squeezing are effective.

Step 7: Recheck and Close Up

  • Reinstall the radiator cap securely.
  • Start and idle the engine until warm, allowing the thermostat to open and any remaining air to escape. Shut down and let the bike cool to ambient.
  • Double check the fluid level in the radiator & reservoir once the engine is fully cool, topping up if needed.

Special Model Note for 2020 Beta 125 RR Race Owners

The 2020 Beta 125 RR Race does not use bleeder screws on the radiator top like some previous Beta models. Instead, ensure you take care purging air through manual techniques described above. Using high-quality, race-appropriate coolant is especially important on this model, given its higher operating temperatures. Regularly inspect the fan (if fitted on your model) and radiator fins to prevent overheating during hard rides.

Disposal and Safety Tip

Never pour used coolant down the drain or onto the ground. Properly dispose of it at local auto or motorcycle service centers that accept waste coolant.

Keep Your 2020 Beta 125 RR Race Running Strong

Following these steps will ensure consistent performance and protection out on the track or trail. If you need replacement parts, coolants, or accessories tailored to your specific bike, MotoSport.com offers a complete selection designed for the 2020 Beta 125 RR Race.

Related Shopping Categories

Shop Radiators for a 2020 Beta 125 RR Race Dirt Bike.

Shop Coolant for a 2020 Beta 125 RR Race Dirt Bike.

Shop Temperature Sensors for a 2020 Beta 125 RR Race Dirt Bike.

Shop Tools for a 2020 Beta 125 RR Race Dirt Bike.

Shop Radiator Hoses for a 2020 Beta 125 RR Race Dirt Bike.

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.