Hey i have a 2003 raptor 660. I took it for the 2nd ride this year yesterday. I noticed that while accelerating it bogs out or stalls for a split second then takes off like a bat out of hell. The first ride of the year i took it on i didnt notice but i was just slowly cruising around with the wife and kids. Do the carbs need to be cleaned? It sat all winter so i dont know if i need to drain the gas and clean the carbs or what? Thanks.