How to Change the Coolant in a 2018 Beta XTRAINER

Shop parts for a 2018 Beta XTRAINER Dirt Bike.

Maintaining your 2018 Beta XTRAINER means keeping the cooling system working at its best to prevent overheating and ensure lasting engine performance. Here is a proprietary step-by-step guide on how to change the coolant, specifically for this model, along with essential details crucial to the XTRAINER owner.

Tools & Supplies You Will Need

  • Fresh coolant (Liqui Moly coolant ready mix raf12 plus, 1300ml is recommended for this model)
  • 8mm and 10mm sockets and wrench
  • Drain pan
  • Funnel
  • Shop rags
  • Gloves and eye protection

Preparation

  • Make sure the engine is completely cool before starting.
  • Place your dirt bike on a sturdy stand in a well-ventilated area.

Step-by-Step Coolant Change

  1. Remove Skid Plate or Plastic Guards: If your XTRAINER is equipped with a skid plate or plastic radiator guards, remove these for easier access to the drain bolt and radiator cap.
  2. Open the Radiator Cap: Locate the radiator cap on the left side of the bike. Turn the cap slowly to release pressure, then remove it.
  3. Locate the Coolant Drain: The drain bolt for the coolant is typically on the lower water pump cover or at the base of the engine case. Use the correct socket (usually 8mm or 10mm) to remove the bolt. Position the drain pan underneath.
  4. Drain Old Coolant: Allow all coolant to fully drain. Gently lean the bike side-to-side to ensure complete evacuation. Catch any stray fluid with shop rags.
  5. (Optional) Flush System: For an even more thorough service, you may flush the system by refilling with distilled water, running the engine briefly, then draining again. Repeat until the drained liquid runs clear.
  6. Reinstall the Drain Bolt: Clean the bolt threads. Inspect and replace the sealing washer if necessary. Reinstall and torque to factory spec (typically 10Nm; confirm in the workshop manual).
  7. Add New Coolant: Using a funnel, pour new coolant (up to 1300ml per factory recommendations) into the radiator until nearly full.
  8. Bleed the System: Tilt the bike to either side to work out trapped air bubbles. Squeeze radiator hoses gently. Top off as needed.
  9. Run Engine & Final Check: Start the engine briefly with the cap off to circulate coolant and remove residual air. Stop engine, allow bubbles to escape, and top up again if necessary. Reinstall radiator cap securely.
  10. Inspect for Leaks & Replace Guards: Check around drain bolt and hoses for leaks. Reinstall any guards or skid plates.

Unique Beta XTRAINER Considerations

  • Small Radiators & Overheating: The XTRAINER features compact radiators and a cooling system that works harder in tight, technical terrain. The thermo fan often operates more frequentlymonitor your coolant level and radiator cleanliness closely.
  • Coolant Pump Upgrade: Due to the smallish radiators, consider upgrading to a high-flow impeller kit to improve coolant circulation and reduce the risk of overheating, especially in slow conditions.
  • Coolant Type: Factory coolant may have a higher glycol content than ideal for these engines. Consider a 50-50 mix or premixed coolant specifically formulated for modern two-stroke motorcycles to reduce seal and gasket wear.
  • Interval: Replace coolant at least once a year or every 30 operational hours, whichever comes first, based on recommended engine maintenance intervals.

Final Tips

  • Always dispose of old coolant safely—never pour it down the drain or onto the ground.
  • Check hose clamps, seals, and fan operation after completing the coolant change to ensure total cooling system reliability.

Keeping your 2018 Beta XTRAINER running cool will guarantee many more hours of trail-ready fun and peak performance.

Related Shopping Categories

Shop Radiators for a 2018 Beta XTRAINER Dirt Bike.

Shop Coolant for a 2018 Beta XTRAINER Dirt Bike.

Shop Temperature Sensors for a 2018 Beta XTRAINER Dirt Bike.

Shop Tools for a 2018 Beta XTRAINER Dirt Bike.

Shop Radiator Hoses for a 2018 Beta XTRAINER 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.