[V]I put in a new set of needle and seats in my Ultra. Went to start it the next couple of days and it was completely full of gas, drained it and ran okay. Turned gas line off, no snow til this weekend, turned gasline on, started first pull with a backfire. I took off, fouled another plug. replaced that, ran good all day. put it away, left gas on, it was full again tonight. The needle and seats were 1.5's. Any ideas, I have had the carbs off 4 times this year already. Really starting to get tired of this thing! Thanks!