How to Change the Coolant in a 2012 Yamaha TW200: Step-by-Step Guide
Shop parts for a 2012 Yamaha TW200 Dirt Bike.
The Yamaha TW200 stands out for its rugged character and legendary reliability. Regularly changing the coolant is crucial to keep its air-cooled, low-compression engine performing at its best–helping prevent overheating during low-speed trail rides, and guarding against internal corrosion. Follow this MotoSport-exclusive guide to change the coolant on your 2012 TW200 and keep your dual sport running cool on every ride.
Tools & Supplies Needed
- Pre-mixed, motorcycle-specific coolant (or distilled water + concentrate as specified)
- Drain pan
- Socket wrench set
- Funnel
- Rags or shop towels
- Replacement sealing washer for the drain bolt (recommended)
- Gloves and safety glasses
Preparation
- Ensure the engine is completely cool before starting.
- Place the bike on a stable, upright stand.
- Remove any panels or fuel tank obstructing access to the radiator and coolant fill cap using hand tools.
Drain the Old Coolant
- Locate the radiator drain bolt (typically at the lower edge of the radiator or water pump housing).
- Position a drain pan beneath the bolt and remove the radiator cap to allow air into the system.
- Loosen the drain bolt and let the coolant drain completely. Be sure to also remove the coolant reservoir hose (if equipped) to allow system to drain fully.
- Inspect the old coolant–if it's rusty or oily, further inspection may be needed.
- Replace the sealing washer on the drain bolt before reinstalling it; torque the bolt to spec.
Flush (Optional But Recommended)
- Refill the cooling system with distilled water only.
- Run the engine at idle for several minutes with the radiator cap in place. Shut down, allow to cool, and then drain again.
- Repeat until the drained water runs clear if the coolant appeared contaminated.
Refill With Fresh Coolant
- Slowly pour fresh coolant into the radiator until just below the filler neck. Use a funnel to prevent spilling and avoid introducing air.
- Fill the overflow reservoir to its upper mark if your TW200 is equipped with one.
Burp the Cooling System
- With the radiator cap off, briefly start the engine. Allow it to reach operating temperature.
- Gently rock the bike side to side and blip the throttle occasionally. This helps air bubbles escape from the system–an essential step for the horizontal single of the TW200.
- Shut off the engine and let it cool. Top off the radiator and reservoir as needed before reinstalling the radiator cap securely.
Final Steps & Tips
- Inspect for leaks around the drain bolt, hoses, and cap.
- Reinstall the panels, shrouds, or tank.
- Check coolant levels after your next ride, topping up as needed–minor drop is normal as remaining air purges out.
- Dispose of old coolant properly; it is hazardous to animals and the environment.
What Makes the 2012 Yamaha TW200 Unique?
- The TW200 uses a robust, air-cooled, SOHC engine–coolant changes are less frequent than on high-compression liquid-cooled bikes, but equally important to prevent rust and scale inside the passages.
- The wide, low-pressure tires and rugged frame invite slow-speed exploration. Even with air-cooling, the TW200 uses coolant in the cylinder head’s small water jacket to stabilize temperature and improve reliability on tough trails.
- Always use the motorcycle-specific coolant and avoid automotive coolants with silicates, as these can damage seals inside the cooling system.
Keep your 2012 Yamaha TW200 ready for the toughest terrain–schedule regular coolant service as part of your maintenance routine and enjoy Mosko Moto confidence wherever the trail leads.
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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.