riding mower won't start, has a broken wire with fuse?

I have a 5HP Yardman riding lawn mower. Nothing is happening when I turn the key to start it. I found a broken red wire with a fuse on the wire. Does anyone know where I should reattach this wire? I am elderly and my daughter is here to cut it, for 3 weeks hasn't been able to cut grass which is now a foot high, we would very much appreciate any advice. Thank you !