How to Change the Coolant in a 2019 Beta 250 RR

Shop parts for a 2019 Beta 250 RR Dirt Bike.

Maintaining the right temperature is key to the performance and longevity of your 2019 Beta 250 RR. Coolant keeps internal engine temperatures in check, reduces corrosion, and prevents freezing or overheating, especially for 2-stroke models like the Beta. Here is a detailed, proprietary MotoSport guide to help you confidently change the coolant in your MMY dirt bike and avoid mistakes specific to this model year.

What You Need

  • Correct pre-mixed motorcycle coolant (never use automotive coolant)
  • Drain pan
  • Basic hand tools (typically 8mm/10mm socket)
  • Funnel
  • Clean shop rags
  • Distilled water (optional, for flushing)
  • Gloves – optional, but recommended

Step 1: Preparation

  • Ensure the engine is completely cool before starting; a hot system can cause burns and pressurized fluid release.
  • Place your dirt bike on a stable stand and remove the seat, fuel tank shrouds, or other plastics as needed to access the radiators.

Step 2: Draining the Old Coolant

  • Locate the coolant drain bolt; on the 2019 Beta 250 RR, this is typically on the lower side of the water pump cover (right side of engine).
  • Carefully loosen the radiator cap to relieve any pressure, then remove the drain bolt and let coolant flow into your drain pan.
  • Open the radiator cap fully to allow faster and more thorough draining.
  • Optionally, while the system is empty, flush it with distilled water for extra cleanlinessdo not use tap water as it may cause scale or corrosion.

Step 3: Refitting the Drain Bolt

  • Inspect the drain bolt washer for wear; replace if necessary.
  • Reinstall and torque the drain bolt to manufacturer specification (avoid over-tightening to prevent cracking the cover).

Step 4: Refilling With Fresh Coolant

  • Using a funnel, add coolant slowly into the radiator filler neck with the bike upright—fill until the coolant level sits just above the inner core of the radiator.
  • Squeeze coolant hoses gently and rock the bike side to side. This helps dislodge trapped air specific to 2019+ Beta models, which do not have traditional bleed screws like some older Betas. Pay attention: 2019 and newer 250 RR bikes are bled like 2020+ models—move the bike side to side rather than looking for a bleeder printout.
  • Recheck the coolant level after air has worked itself out, topping up as needed. Be patient, and do not rush this step to ensure your Beta avoids hot spots and excessive pressure in the future.

Step 5: Final Steps – Bleeding Air

  • With the radiator cap still off, start the engine and allow it to idle for a minute. Give it a few gentle revs; this helps remaining air bubbles rise.
  • Turn the engine off. Top off the coolant if the level has dropped below the core, then install the radiator cap securely.
  • Visually check for any leaks around the drain bolt and radiator hoses.
  • Reinstall any removed plastics and ride gently for the first time after your coolant change. Check the overflow reservoir and radiator level again after the first ride and top off if needed, as a small drop in level is normal as the last air escapes.

Important Notes for 2019 Beta 250 RR Owners

  • Bled by motion. The 2019 Beta 250 RR does not have a coolant system bleeder screw like pre-2019 models. Only rock the bike side to side to purge air—trying to find a bleed screw may damage components.
  • Coolant capacity: The system holds approximately 1.3 liters. Avoid overfilling as it can cause pressure overflows.
  • Inspect radiator hoses for age-related softness or cracks—2019 was a model year where some users reported slightly thinner upper radiator hoses as stock, which may need replacing after multiple heat cycles or crashes.
  • Never use non-dedicated coolant, as Beta specifies only high-quality, silicate-free, motorcycle-rated coolant to protect the magnesium engine components and coolant pump.
  • Beta recommends annual coolant changes to maintain proper freeze and corrosion protection, and even more frequently for riders in muddy or highly humid climates.

Final Thoughts

Regular coolant changes aren’t just maintenance; they’re preventive care for the heart of your Beta. Watch operating temps after your first ride, and always double check the system after heavy falls or racing. Keeping your cooling system healthy is the difference between hours of trouble-free trails and unexpected repairs.

Related Shopping Categories

Shop Radiators for a 2019 Beta 250 RR Dirt Bike.

Shop Coolant for a 2019 Beta 250 RR Dirt Bike.

Shop Temperature Sensors for a 2019 Beta 250 RR Dirt Bike.

Shop Tools for a 2019 Beta 250 RR Dirt Bike.

Shop Radiator Hoses for a 2019 Beta 250 RR 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.