Question regarding 2011 Honda pcx125

[Mike888]

Thanks for the detailed instruction, do you think I need to change out the hidden resovior since my scooter is a 2011 with only 1000miles. When looking at the screen outside of reservoir to see if it is full or not I see a tiny bubble. How do I get rid of it?. Also can you teach me how to change out the coolant. Is 1 quart of coolant enough. Currently my scooter has green coolant from factory and I will be using the blue type. Thanks for your help