it would be a bad idea to do that. The engine will be very very very hard to start and i doubt thta the engine would get up to a high enough temperature to be safe and would cause premature wear on the internal parts. Also in that cold a weather the plastic would become very very brittle and a slight bump would proly break an a arm or somewhere along those lines. If i were you i would wait till the temperature at least gets above - temperatures to be safe.