I just bought a blaster and test rode fine. I took it out and after riding it for 20 minutes it started idling really high on its own even with the clutch in. The kill switch didn't work for a minute either and it was sitting there screaming. The guy I bought it from put a new seat for the carb needle in it. Am I getting air in it? What do you guys think. It has been bored 90over. The 2 inch hose coming out the back of the carb slides off way to easy just by pulling on it. And I also wander if the guy I bought it from jacked up the carb when putting. The bushing in. Can anyone help please.