1. Prepare your bike. Park your bike on a level surface and turn off the engine. Allow it to cool down completely. Put on your safety gear.
2. Drain the old coolant. Place a drain pan under the radiator and coolant reservoir. Remove the radiator drain bolt (located at the bottom of the radiator) and the drain plug (located on the bottom of the coolant reservoir) to allow the old coolant to drain out.
3. Flush the cooling system. Once the old coolant has been drained, flush the cooling system with clean water. Replace the drain bolt and drain plug and add water to the radiator and coolant reservoir. Run the engine for a few minutes to circulate the water throughout the system, then drain it out again.
4. Add the new coolant. To add fresh coolant, refer to the owner’s manual for the recommended mixture ratio for your specific model. Pour the coolant into the radiator and fill it to between the “L” and “F” marks indicated on the radiator's side. If your model doesn’t have specific coolant level markers, fill the radiator to just slightly below the filler neck. Repeat with the coolant reservoir.
5. Run the bike. Let your bike run for several minutes until it reaches operating temperature, periodically revving up the engine a few times. Monitor the coolant levels in both the radiator and reservoir while the engine is running, adjusting them if necessary. Make sure there are no leaks coming from the radiator or reservoir.
6. Dispose of the old coolant responsibly. Always check with your local municipal waste facility to find out the correct way to discard the old coolant.
Note: Please wear safety glasses when working with coolants to prevent eye damage.
