Blender animations and unity

I'm wanting to import animations from blender into unity. Like a walk cycle or so.. in blender I have the model made and rigged, I also have the walk cycle made. When I import it into unity and play the game it only show the walk cycle for a brief second. I've tried making it loop. I just want to make a character walk. Also I'm very new to unity so I don't know much about it.