How to Change the Coolant in a 2022 GAS GAS MC 50: Essential Maintenance Guide
Keeping the coolant fresh in your 2022 GAS GAS MC 50 is a crucial task to ensure engine performance, prevent overheating, and extend engine life. Coolant changes are straightforward on this mini motocross platform, but there are a few model-specific details and safety precautions every owner should know. This proprietary MotoSport guide provides a robust, step-by-step process unique to the MC 50, plus key maintenance notes for your particular ride.
What You Need
- New coolant designed for two-stroke motocross bikes
- Drain pan or suitable container
- 8 mm and 6 mm socket or box wrench
- Clean funnel and rags
- Safety gloves and eyewear
Safety Before You Start
- Only perform coolant service when the engine is fully cool.
- Avoid skin and eye contact with coolant. Flush with water if contact occurs. Change clothes if coolant is spilled on fabric.
- Coolant is toxic–keep away from children and pets.
Step-by-Step Guide to Changing Coolant on the 2022 GAS GAS MC 50
-
Position the Motocross Bike Upright
Stabilize the bike on a stand to keep it level and secure. -
Remove the Radiator Cap
Loosen the cap slowly to relieve any possible pressure. -
Locate the Coolant Drain Bolt
The drain bolt is typically found at the lower water pump cover on the right side of the engine.
Place your drain pan underneath. -
Remove the Drain Bolt
With your wrench, remove the bolt and allow all coolant to fully drain. Be patient–wait until completely empty for best results. -
Inspect and Replace the Seal Ring (Optional)
Check the condition of the drain bolt's seal ring. Replace it if cracked or worn to prevent leaks. -
Reinstall the Drain Bolt
Tighten the bolt to 10 Nm (7.4 lbf ft). Overtightening can strip threads–don't force it. -
Refill with Coolant
Use a funnel to pour the new coolant into the radiator's fill neck slowly. For the MC 50, fill until the level is about 10 mm (0.39 in) above the radiator fins. This bike holds approximately 0.48 L (16.2 oz) of coolant. -
Bleed Air from the System
Gently rock the bike side-to-side to dislodge air bubbles. For a thorough bleed, start the bike with the radiator cap off and run it briefly while watching the coolant–top off as necessary. -
Reinstall the Radiator Cap
Securely reinstall the cap once coolant reaches the correct level and all bubbles are purged. -
Test for Leaks and Recheck Level
Wipe down the engine and hoses, then run the bike for a few minutes. After letting it cool, recheck the coolant level and add fluid as needed.
Model-Specific Notes for the 2022 GAS GAS MC 50
- The MC 50's radiator and cooling system is especially compact. Avoid overfilling and always use a non-silicate, premixed coolant intended for small-displacement, high-revving two-strokes.
- Inspect the radiator fins for mud or debris that can restrict airflow–a common issue after hard riding. Gently clean as needed.
- The MC 50 lacks a coolant overflow reservoir, so maintaining the correct fill height is critical to avoid air pockets or overheating.
Disposal and Environmental Considerations
- Never pour used coolant down the drain or onto the ground.
- Take used fluids to your nearest authorized recycling center or hazardous waste facility.
When to Change the Coolant
- At least every 12 months, or sooner after heavy mud, sand, or race use.
- If the coolant appears rusty, oily, or contaminated when inspected.
With regular coolant changes and thorough attention to detail, your 2022 GAS GAS MC 50 will keep running cool and strong–whether you're chasing checkered flags or just loving the ride.
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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.