I need a 290 Main Air Jet for a 1987 115 Yamaha 6E5L362479 15ETLH. Dealers don't list it, Been to salvage yard and the carbs I've found have plugs not jets. This jet is 1 of 2 located in the center portion top (front) of carb. Yamaha in Atlanta gave me a part number so we ordered it, when it came in it was a main gas jet. If I can't find one, can I drill out one of the plugs to the approximate size or does it have to be the exact size?
