I've been reading about the new 4 stroke and cold weather starting issues on other forums. I didn't opt for the $500 block heater from ski-doo. I was wondering if the machine would fire up in this cold weather we've been having lately. So I took it out of the garage last week and let it sit outside in the -40 weather. I went out and it fired up this morning. It was little hesitant but it fired off. I think i'm going to put an inline water heater that Yamaha sells because I don't like cold starting them in this kind of weather.