How to Change the Coolant in a 2023 GAS GAS MC 85
Regular coolant changes are essential for keeping your 2023 GAS GAS MC 85 performing in peak condition. This guide from MotoSport.com details the process and highlights model-specific tips every owner should know for safe, effective coolant maintenance.
What You'll Need
- Fresh, compatible motorcycle coolant (never use straight tap water)
- Socket set
- Screwdrivers
- Large catch pan
- Funnel
- Protective gloves & eyewear
- Shop rags
Key Notes Before Starting
- The MC 85's coolant system is pressurized. Ensure the engine is completely cool before opening the cap to avoid burns.
- This model features a cylinder head bleed bolt designed to make air bleeding easier.
- Avoid coolant spills — it is toxic to pets and harmful to the environment.
Step-by-Step Coolant Change
-
Remove the radiator cover:
Using a screwdriver, detach the radiator shroud to access the radiator cap and hoses if necessary. -
Open the radiator cap:
With the engine cold, slowly unscrew the radiator cap to release pressure. -
Drain the old coolant:
Locate the water pump drain bolt (typically the lower bolt on the engine cover side of the water pump housing). Position your catch pan and remove the bolt. Allow coolant to fully drain.
Tilt the bike side-to-side carefully to remove as much old coolant as possible. -
Optional: Flush the system:
If the coolant was extremely dirty or you're switching coolant types, flush the system with distilled water. Replace the drain bolt and pour in distilled water. Start the engine briefly, then let it cool and repeat the drain. Do not mix incompatible coolant types. -
Replace the drain bolt:
Clean the sealing surface. Install and torque the bolt to the manufacturer's recommended value. -
Fill with fresh coolant:
Using a funnel, pour new coolant into the radiator until it nearly reaches the top. -
Bleed air from the system:
Locate the bleed screw on top of the cylinder head. Loosen this screw slightly until air bubbles escape and only coolant flows out. Tighten the screw. -
Top off the radiator:
With the bleed screw tight, check and fill the radiator to the correct level again. Reinstall the radiator cap securely. -
Check for leaks & run the engine:
Start your MC 85 and let it idle for a few minutes. Shut off and allow it to cool. Recheck the coolant level, topping off if necessary.
Model-Specific Tips for the 2023 GAS GAS MC 85
- Bleeder Port Feature: The MC 85 comes with a bleeder screw on the cylinder head, making it easier to eliminate air pockets in the system – don't skip this step for optimal cooling.
- Coolant Capacity: Always follow your owner's manual for the recommended coolant volume and specifications for your engine.
- Handle Coolant Safely: Avoid skin or eye contact, and thoroughly rinse with water if exposed. Dispose of used coolant at approved recycling centers only.
Final Checks
- Periodically check the coolant level, especially after your first ride post-change.
- Inspect for leaks around the drain bolt, radiator, and hoses.
- Operating with low coolant can cause severe engine damage – regular checks are part of routine MC 85 maintenance.
Stay ahead of wear with fresh coolant and OEM-quality parts – trust MotoSport.com for all 2023 GAS GAS MC 85 maintenance needs!
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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.