I have rebuilt all 3 carbs. Replaced Fuel pump and hoses. Replaced power pack because 3rd cylinder was not firing. Replaced spark plugs. The motor starts/idles fine, even runs OK at low speed. As soon as boat comes up on plane, it surges. Took the cover off carbs and can see gas spraying, then stopping while the engine surges. Also replaced gas line and bulb from tank to engine.
