Friend's wifes 07 V does this. He just noticed it this past weekend.
I think mine was also doing it this weekend on the first startup of the morning.
One is a stock motor.. Other is modified.. Once warmed up, both seemed fine..
I know they are temperamental in the winter. I store a honda 300 with my machine. Honda will fire up without choking or anything after sitting and stone cold. Don't even bother trying to start the V without the choke on a cold day.
Are you referring to the air temperature being cold or the motor being cold? Neither of mine run worth a crap unless I let them idle for at least 10 minutes before riding them for the first time of the day. Even in the summer.