Re: Lean sneeze!
The engine sounds like it is making a muffled backfire. With the airbox cover off, you can see a spray of mist come out of the carb throat. This most always means a lean carb, or the engine is drawing air from another source increasing the fuel, air mixture. A lean mixture thru the idle circuit can mean just a sour running engine, thru the high speed circuit, disaster. A rich running engine most times will just be a rough idle, and the engine flooding itself out. The engine can also make, for lack of a better word, a blubbering sound, almost like it is four cycling.
