Just purchased 93 procraft pro 180 dual with 93 mariner 150 2.5 mag3. First time out was with prior owner and all went well. Second time out was by myself pumped bulb till it was hard and pushed in key for about 5 seconds and tried to start. It took several tries and about 10 minutes. Boat ran great after that. It would crank on first turn of the key for the rest of the day. Today went and pumped bulb but it never got real hard but tried to crank it. Pushed key in and waited about 5 seconds and cranked it. It ran about 5 seconds then shut down. Couldn't get it to crank agian.