This weekend I took some kids skiing. Saturday the engine started runing poorly. First it was just missing ever few minutes then it wouldn't run hardly at all. I went back to the beach, took off the cowling and started it back up. When I did I noticed water squirting out from the back of the engine. One of the small hoses had a split in it. The insullation in the cowling was wet. I went to the local marina and got a new hose and replaced it. It is running better but still misses frequently. Any suggestions?