Have owned the boat and motor since 1988. Always had this problem. Starts and runs fine from cold and runs well wot down to idle. Once I turn off and could be as little as 5 minutes, I start the routune of priming and raising the choke. When it does finally start, out comes all the white smoke. I've read previous posts dated back over a few years but none have pinpointed the problem. Anybody have a clue. <br /><br />I just had the carbs rebuilt and the problem still exists