Wiggle the dess key till it beeps two times. Also make sure u have the right dess key. All keys will start it. But won't let it rev up past clutch lock engadgement. That's what's happening. Mabe a touch of grease under cap for a good conection. Does it beep slowly too
YA it was a vent line from Airbox on Side Panel to the carbs.... Still had a Paper -Towel plug in it, dont know how this affects the rpms, maybe someone else will chime in...