I bought the ride on lawn solutions aerator with the Subaru 13.5 motor and I hate it. Won't start cold. Today 41 degrees and won't even pop. I have lawns to aerate and can't get this machine started. I called LS and they said they had put too small a battery in it and to try pull starting it. That does not work either. Anybody have a suggestion? Even starting fluid won't get it going. The machine has 17 hours on it.