I loved my F7 sno pro until sunday morning. I was warming it up - just idling heard some noise and it quit - wouldn't restart. This morning dealer told me it was the "smart valve". I was schedualed to have it and the other updates done but was one day too late. Don't get left in the cold like I did - get it done right away. PS my tank was full of fuel so don't think it only fails in low fuel conditons. See ya on the sno!