How to Change the Coolant in a 2023 GAS GAS MC-E3: MotoSport's Proprietary Guide
Regular coolant replacement in your 2023 GAS GAS MC-E3 is key for consistent performance and engine longevity. Although the MC-E3 is an all-electric motocross bike with a simplified powertrain compared to gas-powered models, it uses a dedicated liquid cooling circuit to maintain optimal motor and controller temperatures during hard rides. Follow these steps to safely and effectively change the coolant, using key MC-E-specific details every owner should know.
What Makes the MC-E3 Cooling System Unique?
- Electric drivetrain – The MC-E3 relies on its cooling circuit exclusively for the electric motor and controller, not an internal combustion engine.
- Coolant type – Only use manufacturer-recommended, non-conductive coolant designed for electric motorcycle components.
- System capacity – The MC-E3 typically requires less coolant than gas models—refer to your owner's manual for the precise amount.
Tools & Supplies Needed
- Non-conductive, motorcycle-approved coolant
- Basic hand tools (screwdriver, socket set)
- Rags and a drain pan
- Safety gloves and eyewear
Step-By-Step Coolant Change for Your 2023 GAS GAS MC-E3
-
Preparation
Ensure your MC-E3 is powered off and cool to the touch. Place the bike on a level stand with plenty of room to work underneath. -
Access the Cooling System
Remove the necessary panels (usually the seat and right side shrouds) to access the coolant reservoir and primary cooling lines. -
Drain the Old Coolant
Position a drain pan under the lowest coolant hose or drain bolt (typically located at the bottom of the water pump housing). Loosen the drain bolt or disconnect the hose clamp, allowing the old coolant to fully drain.
Tip: Slightly loosen the reservoir cap to help the system empty smoothly. -
Flush the System (Optional but Recommended)
For a thorough service, flush with distilled water or a specific flush solution approved for electric systems. Reconnect the drain point, refill with flush solution, then drain again. -
Refit the Drain Bolt or Hose
Ensure the drain point is securely refitted. Tighten hose clamps or bolts to factory specs. -
Fill with New Coolant
Slowly pour the manufacturer-recommended coolant into the reservoir. Fill up to the indicated level but avoid overfilling. -
Bleed the System
The MC-E3 generally features a bleed screw on or near the cooling circuit (often at the top of the motor controller). Loosen this screw until coolant flows steadily, free of bubbles. Retighten the bleed screw.
Rock the bike gently side-to-side to help dislodge trapped air. -
Check for Leaks & Proper Level
Inspect all hoses, clamps, and fittings for any signs of leakage. Top off coolant if the level drops after bleeding. -
Reassemble Panels
Replace all shrouds and the seat securely. -
Test the System
Power on your MC-E3 and perform a short, stationary test to activate the cooling pump. Monitor the temperature gauge or warning indicators. Recheck the coolant level after your first ride and top off if needed.
Essential Reminders for 2023 GAS GAS MC-E3 Owners
- Only use approved coolant – regular automotive coolant may conduct electricity and risk damaging sensitive electronic components.
- Stick to the service intervals supplied in your owner’s manual for best longevity and warranty compliance.
- Dispose of old coolant responsibly – never pour it down the drain or on the ground.
Keeping your MC-E3’s cooling system properly serviced is critical for high performance and peace of mind on the track. For OEM replacement parts, specialty coolant, and everything else you need to maintain your ride, shop parts for your ride now!
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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.