I have managed to get X-forwarding running to use xemacs on my local Windows machine. Now I can start xemacs from the ssh terminal to my remote linux machine. This results in xemacs running in a window on my windows machine:

I would very much prefer to use emacs in a windows window, but what happens is that emacs opens in terminal mode.
Since this works for xemacs I would assume some setting is wrong on the linux machine.
According to this question it seems setting up x-forwarding is sufficient.
I am stuck - can you give me a hint how to get this working?
Edit: the solution in the duplicate question opens a window which contains again the text only version of emacs. After
sudo yum install emacs
the nicer graphical version opens correctly!