How to Change the Coolant in a 2011 Yamaha TW200

Shop parts for a 2011 Yamaha TW200 Dirt Bike.

The Yamaha TW200 is known for its rugged versatility and simple maintenance, but even routine jobs like a coolant change require proper steps for reliability and safety. Use this exclusive MotoSport guide to keep your TW200's cooling system running strong–and avoid overheating on rugged trails or commuting roads.

What You Need

  • Socket wrench set
  • Screwdriver
  • Pliers
  • Drain pan
  • Distilled water
  • New coolant (Yamaha recommends a 50/50 premix of ethylene glycol-based coolant and distilled water)
  • Funnel
  • Clean rags or shop towels
  • New radiator cap (optional but recommended for older bikes)
  • Proper eye and hand protection

Step 1: Prepare the Bike

Let the engine cool completely–removing the radiator cap on a hot engine is dangerous due to pressure and heat. Place the bike on a level surface with the kickstand or (ideally) a center stand.

Step 2: Remove Panels for Access

On the TW200, you may need to remove side panels for better access to the radiator and drain point. Use the appropriate tools and keep fasteners organized.

Step 3: Drain the Old Coolant

  • Remove the radiator cap slowly to release any pressure.
  • Position your drain pan beneath the water pump (right side of the engine).
  • Remove the coolant drain bolt (usually near the bottom of the water pump) and allow coolant to fully drain. Remove the reservoir tank cover and drain its contents if applicable.
  • Inspect the drained coolant. Dark, rusty, or oily coolant suggests the cooling system needs attention beyond a simple flush.

Step 4: Flush the System

Reinstall the drain bolt. Pour distilled water into the radiator using a funnel. Run the engine briefly with the radiator cap off to circulate the flush. Turn off, let cool, and drain this water. Repeat this process until the drained water runs clear, indicating a clean system.– This step is important if the old coolant appeared dirty or contaminated.

Step 5: Fill with Fresh Coolant

  • Reinstall the drain bolt securely. Use a new washer if the original is worn.
  • Slowly pour new coolant into the radiator until it reaches the bottom of the filler neck.
  • Fill the reservoir tank to the "Full" mark.

Step 6: Bleed the Cooling System

  • Start the engine with the radiator cap off and let it idle.
  • Gently rev the engine and rock the bike side to side to help trapped air rise to the surface (this is called "burping" the system).
  • Watch for bubbles–as they disappear, keep topping up the radiator as needed.
  • Once the coolant level stabilizes with no bubbles, reinstall the radiator cap securely.
  • Check and top off the reservoir tank again if needed after the bike cools down from its first ride.

Proper Disposal

Always dispose of old coolant at your local hazardous waste facility. Do not pour coolant down the drain or on the ground, as it is toxic to people, pets, and wildlife.

TW200 Model-Specific Notes

  • The 2011 TW200 features a compact radiator mounted high for protection, but ensure all connections and hoses are secure after service to prevent leaks on rugged trails.
  • Inspect the radiator fins for debris or damage since the TW200's adventure nature exposes it to brush and gravel.
  • The TW200's air-cooled engine is supplemented by this small cooling circuit, so always run with the correct coolant mix for consistent performance, especially in slow, technical terrain.

Final Checks

  • After a complete cool down, check both the radiator and reservoir levels and adjust as needed.
  • Watch for leaks or drops in coolant after your first few rides–these often trace back to loose hose clamps or insufficiently tightened drain bolts.
  • Consider replacing the radiator cap every few years to maintain optimum system pressure, as old caps can cause overheating.

Routine coolant changes not only protect your engine, but ensure your TW200 stays reliable for adventure–no matter the miles or the terrain. For genuine Yamaha parts or high-performance upgrades, MotoSport has everything to keep your 2011 TW200 running at its best.

Related Shopping Categories

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Shop Radiator Hoses for a 2011 Yamaha TW200 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.