How to Change the Coolant in a 2016 Beta 390 RR Race Edition
Shop parts for a 2016 Beta 390 RR Race Edition Dirt Bike.
The 2016 Beta 390 RR Race Edition is renowned for its agile handling, competition heritage, and technologically advanced 385.6cc four-stroke engine. Regular coolant changes are crucial to keep this high-performance machine running at its best–from tight singletrack to open desert. Here's a robust, model-specific guide to help you change the coolant correctly and efficiently.
Why Coolant Change Matters on Your 390 RR Race Edition
The 390 RR Race Edition features a liquid-cooled four-stroke engine with a 1.3 liter coolant capacity, optimized for stability under extreme riding conditions. The Synerject EFI system and engine updates require optimal temperature regulation for performance and longevity*. Dirt, mineral deposits, and old coolant can reduce thermal efficiency and potentially damage critical components*.
Tools & Supplies
- Socket set and ratchet
- Drain pan
- Flathead screwdriver or Allen key (check your radiator cap/guard type)
- Funnel
- Fresh motorcycle-specific coolant (1.3 liters)
- Gloves and safety glasses
- Clean rags
Step-by-Step Coolant Change Procedure
- Ensure Safety & Cooling
Let the bike cool completely before you begin. Hot coolant is under pressure and can cause burns.
Place the bike securely on a stand. - Remove Skid Plate (if equipped)
Use the socket set to remove the bolts securing the skid plate for easier access to the water pump area. - Access the Radiator Cap
Remove the seat and left side panel to reach the radiator cap, which sits atop the left radiator.
Slowly open the cap to release any residual pressure. - Find & Open the Coolant Drain Plug
Locate the coolant drain bolt on the lower part of the water pump cover (right side of engine). Position the drain pan directly underneath.
Remove the bolt and let old coolant drain fully. Tilting the bike slightly can help drain completely.
Inspect the bolt for debris or corrosion, clean, and replace the washer if needed. - Flush the System (Optional but Recommended)
For best results, pour clean distilled water into the radiator neck and let it flush through, then drain again.
Repeat until only clear water comes out. - Reinstall the Drain Plug
Tighten to manufacturer's spec (avoid over-tightening–aluminum threads are soft). - Add New Coolant
Using a funnel, pour fresh coolant into the radiator until nearly full (1.3 liters). Use only coolant approved for aluminum engine parts.
Gently rock the bike side to side; this helps release air pockets. - Bleed the System
Start the engine with the radiator cap off, allowing air to escape as the thermostat opens. Watch for escaping bubbles and top off as needed.
Shut off the motor, refill to correct level, then replace the radiator cap securely. Check upper and lower hoses for leaks. - Reinstall Plastics and Skid Plate
Re-attach all removed panels and hardware. - Dispose of Old Coolant Responsibly
Never pour old coolant down the drain. Take it to a certified disposal facility.
2016 Beta 390 RR Race Edition: Special Considerations
- Coolant Capacity: Confirm you use 1.3 liters–do not overfill or underfill, as the EFI system depends on careful temperature regulation for peak throttle response.
- Radiator Guard Clearance: The Race Edition may feature upgraded guards or aftermarket equipment. Check clearance before loosening hardware.
- Genuine Coolant: Use only coolants compatible with magnesium and aluminum, as used in the Beta engine casing.
- Coolant Color: If you notice a milky appearance after refilling, check for gasket issues, as contamination is rare but possible on high-compression models.
- Maintenance Interval: Change coolant at least once a year or more frequently after riding in muddy or extremely dusty conditions, as dirt-laden air can accelerate radiator core clogging.
Wrap-Up
Routine coolant changes on the 2016 Beta 390 RR Race Edition safeguard your engine's performance and extend your bike's race-ready lifespan. For OEM and upgrade parts, shop parts for a 2016 Beta 390 RR Race Edition Dirt Bike. and keep your Beta at the front of the pack.
*Data & specs from the official Beta owner's manual and industry testing.
Related Shopping Categories
Shop Radiators for a 2016 Beta 390 RR Race Edition Dirt Bike.
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Shop Temperature Sensors for a 2016 Beta 390 RR Race Edition Dirt Bike.
Shop Tools for a 2016 Beta 390 RR Race Edition Dirt Bike.
Shop Radiator Hoses for a 2016 Beta 390 RR Race Edition 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.