Bike sat for two years and would not start. Hand cleaned jets and other parts i could get to. With some carb cleaner in tank finally got it to run. But it stalls on take off. Is there something else to try. In neutral I can slowly roll to a wide open throttle. Any thoughts. Also I could not get screws off the other side of the carb but i take it the needles are not stuck since I can get wide open response. TIA