I have the identical machine and live in Minnesota. My only complaint is once the snow is even slightly deep. It’s just too light and get stuck easy. To be honest, though for the age, it starts every time in 3/5 pulls 2nd pull in the summer no matter how long it’s been sitting.
I know what you’re saying, it’s a little weak in the winter for anything but ice fishing in good conditions. But mine is very reliable that way as well. Never more than 5 pulls when she’s dead cold.