CV20S quit running

Hello,
I have a 1994 Dixie chopper 50 " mower with a cv20s motor. I was mowing today and it suddenly quit running. The key switch is dead. It has a new battery. There is a wire with a 20 amp fuse coming off hot wire on starter. The end to starter is connected. The other end is loose and I can't tell where it goes. If i touch it to side of solenoid and turn key it sparks. Would that make it quit and where would broken end of that wire connect?

Thanks
Hal

Update

I pressed the end of the black wire with fuse that is connected to solenoid where hot battery cable connects to solenoid terminal with blue wire coming off it. The mower started and ran for a second but died.

Read troubleshooting section in operators manual, if you do not have manual google Dixie Chopper Manuals & have your model number from data plate handy. First check engine oil level on dipstick.