We are in VT and I have found that if you actuate the throttle 3 times while the FI is cycling, that it starts well down to 5-10F. Lower than that it starts then quits and I just hit the throttle a few more times. Starts up and stays running. Also at the first oil change or sooner we replace with 0w-40 Syn. This seems to help on the 400-500 and 1000. 800s have been starting well.