So Ihave a 1981 GS850GL, pod filters (Mikes XS) and chopped exhaust. Cylinders 1,2, and 4 are running very lean while cylinder 3 runs perfect. All the jetting is the same (dynojet kit). Tried adjusting needles and still nothing. And suggestions on what to do? No leaks in boots as they have just been replaced. Bike bogs after about half throttle in 3rd up to 5th. Also running an electronic ignition no points.