I have a 04 650 v twin. My choke was stuck on for a while or frozen up. I took it apart and freed it up, changed the oil, changed the spark plugs. It smokes like crazy and seems to be using a lot of oil. It runs rough, like it is missing. I took it to the dealer and they said it was bad gas. They drained it and said it was fine. It still runs rough and smokes. Is it the rings or what. It is in very good shape besides that. What should I do it has been to two dealers. Do Arctic dealers know what they are doing? Trade it or fix it?