problem starting Stihl ms290 chainsaw

Hello, After I use my chainsaw, the next day it will not start up. I was advised that to cure this problem I should empty the fuel tank when I am finished for the day and then start it up to run out the fuel. I have done this and avoided the problem. Yesterday I did not empty the remaining fuel, knowing that I would be using it the next day. (Today) I know that a normal chainsaw does not need this type of care. Anyway , it did not start this morning. Smell of gasoline and thus it looks like it floods easily. So, what problem is it that the chainsaw has? I would like to fix it, thank you