The other day i was in my boat and my motor was running fine. then today when i tried to take off it just shut off like the the safety shut off cord was pulled. I started it back up and it did fine for a little while then it did it again. the motor would just shut off, it didn't bog down or chugg. Now the motor turns over but i have no spark. i checked the main fuse and it was fine. im thinking power pack or stator? how do i tell if it is one of those?

Thanks in advance for the help!