Hmmm? I take it that the engine died while it was submerged? Or did you shut it off? First thing I would do would be to drain the oil. Pull the airbox and drain any water in it. Disconnect injector lines. Remove exhaust and drain any water. Re-oil, and hit the starter with the injector lines disconnected. Your purging water that is in it, out of it. Reconnect injector lines, exhaust, air box, and exhaust. Re-prime the fuel system and try starting it. Other people may have different ideas. That is just what I would do. Or you could consult your dealer.