Got an 04 yamaha wolverine. Was running fine but slowly bogged down and would only run at idle. Cleaned the carb several times all jets and passageways are clean. Bike has full compression, spark and fuel. Checked the timing and valve clearances and checked out fine. Even put gas down cylinder and bike still wont even bark. The only thing I can think of is that the flywheel may have spun the woodruff key. I am absolutely stumped with this and any feedback would be greatly appreciated! Thanks again