Motor goes dead randomly, sometimes at idle, but generally when accelerating or when on plane running, just shuts down and ignition is dead. Trim at the motor still works. Trimmed up and down and alarm cycles then starts and runs fine, sometimes until taking off again, sometimes longer. Stranded me yesterday, trimming motor wouldn't fix it. Left it a couple hours, trimmed it, alarm cycled, started right up and is on trailer now. Running great when it's running. Please help. Just bought this boat a month ago.