On my sons yamaha pw 80 yzinger there is a hose that comes from where you turn gas on to im guessing top of carb. its connected then at bottom there is a much smaller hose thats connected at one end then other is not and when i turn gas on it comes out. does this end connect to anything. heard might be overflow line & float may be stuck if so what can i do. thanks im not real good at this as you can tell.

That does not matter it is just the hose that is just in case there is to much fuel

Yes it sounds like the over flow, and this means the float in the carb is stuck, this can happen if old fuel sits in the carb for extended times
occasionally a tap on the carb with the handle of a screw driver can dislodge the problem, but usually it need the carb cleaned, ethanol fuels can also damage the float valve which would then need replacement.
is a fairly simple procedure to clean the carb,
remove the carb,you can pull it sideways and leave the top and cable attached
remove the bottom of the carb
remove the float and brass jets
blow out and clean
replace all.
work slowly , in a clean area, pay attention to how it comes apart, even take notes or photos, dont adjust the idle or air screws
nothing needs to be forced