Hello all. I'm helping my father troubleshoot this machine. It simply will not start. The starter turn the motor over but it seems very slow. The starter was just rebuilt and tested, has a new battery, has new battery cables. When the machine does run, with the assistance of starting fluid, it has great power and seems to run fine. Storing the machine in a heated building AND having it plugged in doesn't seem to help. Any help would be appreciated. Thank you.