i have a raptor 660 and when ever i try to start it the gas goes into the air box and i have no idea why. it wont turn over at all air just comes out of the muffler and when i pull start it the engine turns but does not like idle. and when i give it gas it dont do anything. i have no idea what too do. i dont wanan take it in and pay a fortune just to find out whats wrong. Please help if you can! Thanks